Merge remote-tracking branch 'paper/for-clone'

2024-12-11 22:53:38 +01:00 · 2024-12-11 22:53:38 +01:00 · 4ea25cd504
Commit 4ea25cd504
--- a/.editorconfig
+++ b/.editorconfig
@ -0,0 +1,42 @@
+[*]
+charset=utf-8
+end_of_line=lf
+insert_final_newline=true
+indent_style=space
+indent_size=4
+ij_any_block_comment_add_space = false
+ij_any_block_comment_at_first_column = false
+ij_any_line_comment_at_first_column = false
+ij_any_line_comment_add_space = true
+
+[*.tiny]
+indent_style=tab
+
+[*.bat]
+end_of_line=crlf
+
+[*.yml]
+indent_size=2
+
+[*.patch]
+trim_trailing_whitespace=false
+
+[*.java]
+ij_continuation_indent_size = 4
+ij_java_class_count_to_use_import_on_demand = 999999
+ij_java_insert_inner_class_imports = false
+ij_java_names_count_to_use_import_on_demand = 999999
+ij_java_imports_layout = *,|,$*
+ij_java_generate_final_locals = true
+ij_java_generate_final_parameters = true
+ij_java_method_parameters_new_line_after_left_paren = true
+ij_java_method_parameters_right_paren_on_new_line = true
+
+[test-plugin/**/*.java]
+ij_java_use_fq_class_names = false
+
+[Paper-Server/src/main/resources/data/**/*.json]
+indent_size = 2
+
+[paper-api-generator/generated/**/*.java]
+ij_java_imports_layout = $*,|,*
--- a/.gitattributes
+++ b/.gitattributes
@ -0,0 +1,7 @@
+* text=auto eol=lf
+
+*.sh text eol=lf
+gradlew text eol=lf
+*.bat text eol=crlf
+
+*.jar binary
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@ -0,0 +1,2 @@
+* @PaperMC/paper-maintainers
+/.github/CODEOWNERS @PaperMC/core-team
--- a/.github/DISCUSSION_TEMPLATE/ideas.yml
+++ b/.github/DISCUSSION_TEMPLATE/ideas.yml
@ -0,0 +1,42 @@
+labels: ["status: needs triage"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for filling out a feature request for Paper! Please be as detailed as possible so that we may consider and review the request easier.
+        We ask that you search all the issues to avoid a duplicate feature request. If one exists, please reply if you have anything to add.
+        Before requesting a new feature, please make sure you are using the latest version and that the feature you are requesting is not already in Paper.
+
+  - type: textarea
+    attributes:
+      label: Is your feature request related to a problem?
+      description: Please give some context for this request. Why do you want it added?
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like.
+      description: A clear and concise description of what you want.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered.
+      description: List any alternatives you might have tried to get the feature you want.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Other
+      description: Add any other context or screenshots about the feature request below.
+    validations:
+      required: false
+
+  - type: markdown
+    attributes:
+      value: |
+        Before submitting this feature request, please search our issue tracker to ensure your feature has not
+        already been requested.
--- a/.github/ISSUE_TEMPLATE/bug-or-incompatibility.yml
+++ b/.github/ISSUE_TEMPLATE/bug-or-incompatibility.yml
@ -0,0 +1,79 @@
+name: "🐛 Bug or Incompatibility"
+description: Report issues related to unexpected behavior or vanilla/plugin incompatibility.
+type: "Bug"
+labels:
+  - "status: needs triage"
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Before submitting this issue, please ensure the following:
+
+        1. You are using the latest version of Paper, available on our [our downloads page](https://papermc.io/downloads/paper).
+        2. You have searched to confirm there isn’t [an existing open issue](https://github.com/PaperMC/Paper/issues?q=is%3Aissue%20state%3Aopen%20type%3ABug) on this topic.
+        3. Your version of Minecraft is supported by Paper.
+
+        If you're unsure whether you've encountered a bug, feel free to ask in the `#paper-help` channel on our
+        [Discord](https://discord.gg/papermc).
+
+  - type: textarea
+    attributes:
+      label: Expected behavior
+      description: What you expected to see.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Observed/Actual behavior
+      description: What you actually saw.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Steps/models to reproduce
+      description: This may include a build schematic, a video, or detailed instructions to help reconstruct the issue.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Plugin and Datapack List
+      description: |
+        All plugins and datapacks running on your server.
+        To list plugins, run `/plugins`. For datapacks, run `/datapack list`.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Paper version
+      description: |
+        Run `/version` on your server and **paste** the full, unmodified output here.
+        "latest" is *not* a version; we require the output of `/version` so we can adequately track down the issue.
+        Additionally, do NOT provide a screenshot, you MUST paste the entire output.
+        <details>
+        <summary>Example</summary>
+
+        ```
+        > version
+        [20:34:42 INFO]: Checking version, please wait...
+        [20:34:42 INFO]: This server is running Paper version 1.21-105-master@7e91a2c (2024-07-20T21:04:31Z) (Implementing API version 1.21-R0.1-SNAPSHOT)
+        [20:34:42 INFO]: You are running the latest version
+        [20:34:42 INFO]: Previous version: 1.21-103-aa3b356 (MC: 1.21)
+        ```
+
+        </details>
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Other
+      description: |
+        Please include other helpful information below.
+        The more information we receive, the quicker and more effective we can be at finding the solution to the issue.
+    validations:
+      required: false
+
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -0,0 +1,10 @@
+blank_issues_enabled: false
+contact_links:
+  - name: "❗Exploits"
+    url: https://discord.gg/papermc
+    about: |
+      Since GitHub doesn’t currently support private issues, exploit reports are managed through our Discord.
+      To report an exploit, please visit the #paper-exploit-report channel.
+  - name: "🗨 Questions"
+    url: https://discord.gg/papermc
+    about: If you have questions or need help with any minor issues, feel free to ask us on our Discord server!
--- a/.github/ISSUE_TEMPLATE/crash-or-stacktrace.yml
+++ b/.github/ISSUE_TEMPLATE/crash-or-stacktrace.yml
@ -0,0 +1,78 @@
+name: "💥 Crash or Stacktrace"
+description: Report any server crashes or alarming stack traces.
+type: "Bug"
+labels:
+  - "status: needs triage"
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Before submitting this issue, please ensure the following:
+
+        1. You are running the latest version of Paper from [our downloads page](https://papermc.io/downloads/paper).
+        2. Your version of Minecraft is supported by Paper.
+
+        If your server crash log contains `DO NOT REPORT THIS TO PAPER`, please ask in our
+        [Discord](https://discord.gg/papermc) before opening this issue. These messages are informing you of server
+        lag and providing debug information.
+
+  - type: textarea
+    attributes:
+      label: Stack trace
+      description: |
+        We need all of the stack trace! Do not cut off parts of it. Please do not use attachments.
+        If you prefer, you can use a paste site like https://mclo.gs.
+      value: |
+        ```
+        paste your stack trace or a mclo.gs link here!
+        ```
+      placeholder: Please don't remove the backticks; it makes your issue a lot harder to read!
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Plugin and Datapack List
+      description: |
+        All plugins and datapacks running on your server.
+        To list plugins, run `/plugins`. For datapacks, run `/datapack list`.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Actions to reproduce (if known)
+      description: This may include a build schematic, a video, or detailed instructions to help reconstruct the issue. Anything helps!
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Paper version
+      description: |
+        Run `/version` on your server and **paste** the full, unmodified output here.
+        "latest" is *not* a version; we require the output of `/version` so we can adequately track down the issue.
+        Additionally, do NOT provide a screenshot, you MUST paste the entire output.
+        <details>
+        <summary>Example</summary>
+
+        ```
+        > version
+        [20:34:42 INFO]: Checking version, please wait...
+        [20:34:42 INFO]: This server is running Paper version 1.21-105-master@7e91a2c (2024-07-20T21:04:31Z) (Implementing API version 1.21-R0.1-SNAPSHOT)
+        [20:34:42 INFO]: You are running the latest version
+        [20:34:42 INFO]: Previous version: 1.21-103-aa3b356 (MC: 1.21)
+        ```
+
+        </details>
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Other
+      description: |
+        Please include other helpful information below, if any.
+        The more information we receive, the quicker and more effective we can be at finding the solution to the issue.
+    validations:
+      required: false
--- a/.github/ISSUE_TEMPLATE/new-feature.yml
+++ b/.github/ISSUE_TEMPLATE/new-feature.yml
@ -0,0 +1,53 @@
+name: "💡 New Feature"
+description: Propose a new idea for Paper.
+type: "Feature"
+labels:
+  - "status: needs triage"
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for submitting a feature request for Paper! Please be as detailed as possible to help us review and consider your request effectively.
+        Before submitting, please ensure the following:
+
+        1. You are using a supported version of Paper.
+        2. The feature you’re requesting isn’t already included in the version you’re using.
+        3. You’ve searched for and confirmed there isn’t already [an open request](https://github.com/PaperMC/Paper/issues?q=is%3Aissue%20is%3Aopen%20type%3AFeature) for this feature.
+            - If a similar request exists, feel free to add any additional details you think are helpful.
+
+        If you have any questions, feel free to ask in the `#paper-help` or `#paper-dev` channels on our [Discord](https://discord.gg/papermc).
+
+  - type: textarea
+    attributes:
+      label: Is your feature request related to a problem?
+      description: Please provide some context for this request. Why do you want it added?
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like.
+      description: A clear and concise description of what you want.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Describe alternatives you've considered.
+      description: List any alternatives you might have tried to get the feature you want.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Other
+      description: Add any other context or screenshots about the feature request below.
+    validations:
+      required: false
+
+  - type: markdown
+    attributes:
+      value: |
+        Before submitting this feature request, please search our issue tracker to ensure your feature has not
+        already been requested.
+
--- a/.github/ISSUE_TEMPLATE/performance-problem.yml
+++ b/.github/ISSUE_TEMPLATE/performance-problem.yml
@ -0,0 +1,91 @@
+name: "🐌 Performance Problem"
+description: Report any performance issues.
+type: "Bug"
+labels:
+  - "scope: performance"
+  - "status: needs triage"
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Before submitting this issue, please ensure the following:
+
+        1. You are running the latest version of Paper from [our downloads page](https://papermc.io/downloads/paper).
+        2. You searched for and ensured there isn't already [an open issue](https://github.com/PaperMC/Paper/issues?q=is%3Aissue%20state%3Aopen%20type%3ABug) regarding this.
+        3. Your version of Minecraft is supported by Paper.
+
+  - type: markdown
+    attributes:
+      value: |
+        Before creating an issue regarding server performance, please consider reaching out for support in the
+        `#paper-help` channel of [our Discord](https://discord.gg/papermc)!
+
+  - type: input
+    attributes:
+      label: Spark Profile
+      description: |
+        Please provide all profiles as links rather than screenshots. Screenshots limit our ability to investigate the root cause of the issue.
+
+        For more information, see our [profiling documentation](https://docs.papermc.io/paper/profiling).
+      placeholder: "Example: https://spark.lucko.me/XsN0hxGfsi"
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Description of issue
+      description: If applicable, please describe your issue.
+    validations:
+      required: false
+
+  - type: textarea
+    attributes:
+      label: Plugin and Datapack List
+      description: |
+        All plugins and datapacks running on your server.
+        To list plugins, run `/plugins`. For datapacks, run `/datapack list`.
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Server config files
+      description: We need bukkit.yml, spigot.yml, paper-global.yml, paper-world-defaults.yml and server.properties. If you use per-world Paper configs, make sure to include them. You can paste it below or use a paste site like https://mclo.gs.
+      value: |
+        ```
+        Paste configs or mclo.gs link here!
+        ```
+      placeholder: Please don't remove the backticks; it makes your issue a lot harder to read!
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Paper version
+      description: |
+        Run `/version` on your server and **paste** the full, unmodified output here.
+        "latest" is *not* a version; we require the output of `/version` so we can adequately track down the issue.
+        Additionally, do NOT provide a screenshot, you MUST paste the entire output.
+        <details>
+        <summary>Example</summary>
+
+        ```
+        > version
+        [20:34:42 INFO]: Checking version, please wait...
+        [20:34:42 INFO]: This server is running Paper version 1.21-105-master@7e91a2c (2024-07-20T21:04:31Z) (Implementing API version 1.21-R0.1-SNAPSHOT)
+        [20:34:42 INFO]: You are running the latest version
+        [20:34:42 INFO]: Previous version: 1.21-103-aa3b356 (MC: 1.21)
+        ```
+
+        </details>
+    validations:
+      required: true
+
+  - type: textarea
+    attributes:
+      label: Other
+      description: |
+        Please include other helpful links below.
+        The more information we receive, the quicker and more effective we can be at finding the solution to the issue.
+    validations:
+      required: false
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -0,0 +1,116 @@
+# Here lie dragons!
+#
+# This action either builds the server or
+# builds a paperclip jar to be updated in the body
+# of the PR relating to this action.
+
+name: Build Paper
+on:
+  push:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - labeled
+
+jobs:
+  build:
+    # Run on all label events (won't be duplicated) or all push events or on PR syncs not from the same repo
+    if: (github.event_name == 'pull_request' && github.event.action == 'labeled') || github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        java: [21]
+      fail-fast: true
+    steps:
+      - if: ${{ github.event_name == 'push' }}
+        uses: actions/checkout@v4
+      - if: ${{ github.event_name == 'pull_request' }}
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+      - name: JDK ${{ matrix.java }}
+        uses: actions/setup-java@v4
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'zulu'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+
+      - name: Configure Build
+        uses: actions/github-script@v7
+        id: determine
+        env:
+          REF_NAME: "${{ github.ref_name }}"
+          REF_TYPE: "${{ github.ref_type }}"
+          EVENT: "${{ toJSON(github.event) }}"
+          EVENT_TYPE: "${{ github.event_name }}"
+        with:
+          script: |
+            const {owner, repo} = context.repo;
+            const event_name = `${process.env.EVENT_TYPE}`;
+            const event = JSON.parse(`${process.env.EVENT}`);
+            const ref_type = `${process.env.REF_TYPE}`;
+            const ref_name = `${process.env.REF_NAME}`;
+            const result = {
+              action: "build"
+            };
+
+            if (event_name === "push" && ref_type === "branch") {
+              const {data: pulls} = await github.rest.pulls.list({ owner, repo, head: `${owner}:${ref_name}`, state: "open" });
+              const pull = pulls.find((pr) => !!pr.labels.find((l) => l.name === "build-pr-jar"));
+              if (pull) {
+                result["pr"] = pull.number;
+                result["action"] = "paperclip";
+                core.notice(`This is a push action but to a branch with an open PR with the build paperclip label (${JSON.stringify(result)})`);
+                return result;
+              }
+            } else if (event_name === "pull_request" && event.pull_request.labels.find((l) => l.name === "build-pr-jar")) {
+              result["pr"] = event.pull_request.number;
+              result["action"] = "paperclip";
+              core.notice(`This is a pull request action with a build paperclip label (${JSON.stringify(result)})`);
+              return result;
+            }
+            core.notice("This will not build a paperclip jar");
+            return result;
+
+      - name: Apply Patches
+        run: |
+          git config --global user.email "no-reply@github.com"
+          git config --global user.name "GitHub Actions"
+          ./gradlew applyPatches --stacktrace
+
+      - name: Build
+        run: ./gradlew build --stacktrace
+
+      - name: Upload Test Results
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: Test Results (${{ matrix.java }})
+          path: |
+            **/build/test-results/test/TEST-*.xml
+
+      - name: Create Paperclip Jar
+        if: fromJSON(steps.determine.outputs.result).action == 'paperclip'
+        run: ./gradlew createMojmapPaperclipJar --stacktrace
+
+      - name: Upload Paperclip Jar
+        if: fromJSON(steps.determine.outputs.result).action == 'paperclip'
+        uses: actions/upload-artifact@v4
+        with:
+          name: paper-${{ fromJSON(steps.determine.outputs.result).pr }}
+          path: build/libs/paper-paperclip-*-mojmap.jar
+  event_file:
+    name: "Event File"
+    # Only run on PRs if the source branch is on someone else's repo
+    if: ${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Upload
+        uses: actions/upload-artifact@v4
+        with:
+          name: Event File
+          path: ${{ github.event_path }}
--- a/.github/workflows/close_invalid_prs.yml
+++ b/.github/workflows/close_invalid_prs.yml
@ -0,0 +1,27 @@
+name: Close invalid PRs
+
+on:
+  pull_request_target:
+    types: [ opened ]
+
+jobs:
+  run:
+    if: |
+      github.repository != github.event.pull_request.head.repo.full_name &&
+      (
+        github.head_ref == 'master' ||
+        github.event.pull_request.head.repo.owner.type != 'User'
+      )
+    runs-on: ubuntu-latest
+    steps:
+      - uses: superbrothers/close-pull-request@v3
+        id: "master_branch"
+        if: github.head_ref == 'master'
+        with:
+          comment: "Please do not open pull requests from the `master` branch, create a new branch instead."
+
+      - uses: superbrothers/close-pull-request@v3
+        id: "org_account"
+        if: github.event.pull_request.head.repo.owner.type != 'User' && steps.master_branch.outcome == 'skipped'
+        with:
+          comment: "Please do not open pull requests from non-user accounts like organizations. Create a fork on a user account instead."
--- a/.github/workflows/pr_comment.yml
+++ b/.github/workflows/pr_comment.yml
@ -0,0 +1,84 @@
+# This workflow run on the completion of the
+# build workflow but only does anything if the
+# triggering workflow uploaded an artifact.
+#
+# Do note that it is then the trigger workflow that
+# determines if this will update the PR text body. All
+# this workflow does is check if an uploaded artifact
+# exists and there is a PR tied to the previous workflow.
+
+name: Comment on pull request
+on:
+  workflow_run:
+    workflows: ['Build Paper']
+    types: [completed]
+jobs:
+  pr_comment:
+    if: github.event.workflow_run.conclusion == 'success'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/github-script@v7
+        env:
+          BRANCH_NAME: "${{ github.event.workflow_run.head_branch }}"
+          PR_OWNER: "${{ github.event.workflow_run.head_repository.owner.login }}"
+          PR_SHA: "${{ github.event.workflow_run.head_sha }}"
+          RUN_ID: "${{ github.event.workflow_run.id }}"
+          REPO_ID: "${{ github.event.repository.id }}"
+          EVENT_TYPE: "${{ github.event.workflow_run.event}}"
+          PULL_REQUESTS: "${{ toJSON(github.event.workflow_run.pull_requests) }}"
+        with:
+          # This snippet is public-domain, taken from
+          # https://github.com/oprypin/nightly.link/blob/master/.github/workflows/pr-comment.yml
+          # Modified extensively by Machine_Maker
+          script: |
+            async function updatePR(owner, repo, issue_number, purpose, body) {
+              const { data } = await github.rest.issues.get({ owner, repo, issue_number });
+              core.debug(JSON.stringify(data, null, 2));
+
+              const marker = `<!-- bot: ${purpose} -->`;
+
+              let new_body = data.body ? data.body.trim().split(marker)[0].trim() : "";
+              new_body += `\n${marker}\n---\n${body}`;
+
+              core.info(`Updating the text body of PR #${issue_number} in ${owner}/${repo}`);
+              await github.rest.issues.update({ owner, repo, issue_number, body: new_body });
+            }
+
+            const { owner, repo } = context.repo;
+            const run_id = `${process.env.RUN_ID}`;
+            const repo_id = `${process.env.REPO_ID}`;
+
+            let pulls = [];
+            const event_type = `${process.env.EVENT_TYPE}`;
+            if (event_type === "push") { // if push, it's from the same repo which means `pull_requests` is populated
+              pulls = JSON.parse(`${process.env.PULL_REQUESTS}`);
+            } else {
+              const pr_branch = `${process.env.BRANCH_NAME}`;
+              const pr_sha = `${process.env.PR_SHA}`;
+              const pr_owner = `${process.env.PR_OWNER}`;
+              const { data } = await github.rest.pulls.list({ owner, repo, head: `${pr_owner}:${pr_branch}`, state: "open" });
+              core.debug(JSON.stringify(data, null, 2));
+              pulls = data.filter((pr) => pr.head.sha === pr_sha && pr.labels.find((l) => l.name === "build-pr-jar"));
+            }
+
+            if (!pulls.length) {
+              return core.notice("This workflow doesn't have any pull requests!");
+            } else if (pulls.length > 1) {
+              core.info(JSON.stringify(pulls, null, 2));
+              return core.error("Found multiple matching PRs");
+            }
+            const pull_request = pulls[0];
+
+            const artifacts = await github.paginate(github.rest.actions.listWorkflowRunArtifacts, { owner, repo, run_id });
+            if (!artifacts.length) {
+              return core.info("Skipping comment due to no artifact found");
+            }
+            const artifact = artifacts.find((art) => art.name === `paper-${pull_request.number}`);
+            if (!artifact) {
+              return core.info("Skipping comment to no matching artifact found");
+            }
+
+            const link = `https://nightly.link/${owner}/${repo}/actions/artifacts/${artifact.id}.zip`;
+            const body = `Download the paperclip jar for this pull request: [${artifact.name}.zip](${link})`;
+            core.info(`Adding a link to ${link}`);
+            await updatePR(owner, repo, pull_request.number, "paperclip-pr-build", body);
--- a/.github/workflows/projects.yml
+++ b/.github/workflows/projects.yml
@ -0,0 +1,76 @@
+name: Update Projects
+
+on:
+  issues:
+    types:
+      - labeled
+      - unlabeled
+      - closed
+      - reopened
+
+jobs:
+  bugs:
+    if: "github.event_name == 'issues' && contains(github.event.*.labels.*.name, 'type: bug')"
+    concurrency:
+      group: update-bugs-project-${{ github.event.issue.number }}
+      cancel-in-progress: true
+    runs-on: ubuntu-latest
+    steps:
+      - name: "authenticate"
+        id: "authenticate"
+        uses: "tibdex/github-app-token@b62528385c34dbc9f38e5f4225ac829252d1ea92" # v1
+        with:
+          app_id: "${{ secrets.PROJECTS_APP_ID }}"
+          installation_id: "36153445"
+          private_key: "${{ secrets.PROJECTS_PRIVATE_KEY }}"
+
+      - uses: PaperMC/update-projects-action@v0.2.0
+        name: Update open issue
+        if: github.event.issue.state == 'open'
+        with:
+          github-token: "${{ steps.authenticate.outputs.token }}"
+          project-url: https://github.com/orgs/PaperMC/projects/5/views/2
+          column-field: Status
+          label-to-column-map: |
+            {
+              "resolution: awaiting response": "⌛ Awaiting Response",
+              "resolution: cannot reproduce": "Invalid",
+              "resolution: duplicate": "Invalid",
+              "resolution: incomplete": "Invalid",
+              "resolution: invalid": "Invalid",
+              "resolution: superseded": "Invalid",
+              "resolution: unsupported": "Invalid",
+              "resolution: won't fix": "Invalid",
+              "resolution: works as intended": "Invalid",
+              "status: accepted": "✅ Accepted",
+              "status: blocked": "Needs Work",
+              "status: defer upstream": "Needs Work",
+              "status: in progress": "Needs Work",
+              "status: input wanted": "Needs Work",
+              "status: needs triage": "🕑 Needs Triage",
+              "status: rebase required": "Needs Work",
+              "status: unlikely": "✅ Accepted"
+            }
+
+      - uses: PaperMC/update-projects-action@v0.2.0
+        name: Update closed issue
+        if: github.event.issue.state == 'closed'
+        with:
+          github-token: "${{ steps.authenticate.outputs.token }}"
+          project-url: https://github.com/orgs/PaperMC/projects/5/views/2
+          column-field: Status
+          clear-on-no-match: false
+          # include "status: needs triage" below to catch any closed issues without setting a resolution
+          label-to-column-map: |
+            {
+              "resolution: cannot reproduce": "Invalid",
+              "resolution: duplicate": "Invalid",
+              "resolution: incomplete": "Invalid",
+              "resolution: invalid": "Invalid",
+              "resolution: superseded": "Invalid",
+              "resolution: unsupported": "Invalid",
+              "resolution: won't fix": "Invalid",
+              "resolution: works as intended": "Invalid",
+              "status: accepted": "Done",
+              "status: needs triage": "Invalid"
+            }
--- a/.github/workflows/test_results.yml
+++ b/.github/workflows/test_results.yml
@ -0,0 +1,32 @@
+name: Test Results
+
+on:
+  workflow_run:
+    workflows: [ "Build Paper" ]
+    types:
+      - completed
+permissions: { }
+
+jobs:
+  test-results:
+    name: Test Results
+    runs-on: ubuntu-latest
+    if: github.event.workflow_run.conclusion != 'skipped'
+    permissions:
+      checks: write
+      # for downloading test result artifacts
+      actions: read
+    steps:
+      - name: Download and Extract Artifacts
+        uses: dawidd6/action-download-artifact@v6
+        with:
+          run_id: ${{ github.event.workflow_run.id }}
+          path: artifacts
+      - name: Publish Test Results
+        uses: EnricoMi/publish-unit-test-result-action@v2
+        with:
+          commit: ${{ github.event.workflow_run.head_sha }}
+          event_file: artifacts/Event File/event.json
+          event_name: ${{ github.event.workflow_run.event }}
+          files: "artifacts/**/*.xml"
+          comment_mode: off
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,76 @@
+.gradle/
+build/
+
+# Eclipse stuff
+.classpath
+.project
+.settings/
+
+# VSCode stuff
+.vscode/
+
+# netbeans
+nbproject/
+nbactions.xml
+
+# we use maven!
+build.xml
+
+# maven
+target/
+dependency-reduced-pom.xml
+
+# vim
+.*.sw[a-p]
+
+# various other potential build files
+bin/
+dist/
+manifest.mf
+
+/work/Temp/
+work/1.*
+work/Minecraft
+work/BuildData
+work/Bukkit
+work/CraftBukkit
+work/Paperclip
+work/Spigot
+work/Spigot-Server
+work/Spigot-API
+work/*.jar
+work/test-server
+work/ForgeFlower
+
+# Mac filesystem dust
+.DS_Store/
+.DS_Store
+
+# intellij
+*.iml
+*.ipr
+*.iws
+.idea/
+out/
+
+# JetBrains Fleet
+.fleet/
+
+# Linux temp files
+*~
+
+# other stuff
+run/
+logs/
+
+Paper-Server
+Paper-API
+Paperclip.jar
+paperclip.jar
+paperclip-*.jar
+paperclip.properties
+
+!gradle/wrapper/gradle-wrapper.jar
+
+test-plugin.settings.gradle.kts
+paper-api-generator.settings.gradle.kts
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@ -0,0 +1,516 @@
+Contributing to Paper
+==========================
+PaperMC is happy you're willing to contribute to our projects. We are usually
+very lenient with all submitted PRs, but there are still some guidelines you
+can follow to make the approval process go more smoothly.
+
+## Use a Personal Fork and not an Organization
+
+Paper will routinely modify your PR, whether it's a quick rebase or to take care
+of any minor nitpicks we might have. Often, it's better for us to solve these
+problems for you than make you go back and forth trying to fix them yourself.
+
+Unfortunately, if you use an organization for your PR, it prevents Paper from
+modifying it. This requires us to manually merge your PR, resulting in us
+closing the PR instead of marking it as merged.
+
+We much prefer to have PRs show as merged, so please do not use repositories
+on organizations for PRs.
+
+See <https://github.com/isaacs/github/issues/1681> for more information on the
+issue.
+
+## Requirements
+
+To get started with PRing changes, you'll need the following software, most of
+which can be obtained in (most) package managers such as `apt` (Debian / Ubuntu;
+you will most likely use this for WSL), `homebrew` (macOS / Linux), and more:
+
+- `git` (package `git` everywhere);
+- A Java 21 or later JDK (packages vary, use Google/DuckDuckGo/etc.).
+  - [Adoptium](https://adoptium.net/) has builds for most operating systems.
+  - Paper requires JDK 21 to build, however, makes use of Gradle's
+    [Toolchains](https://docs.gradle.org/current/userguide/toolchains.html)
+    feature to allow building with only JRE 11 or later installed. (Gradle will
+    automatically provision JDK 21 for compilation if it cannot find an existing
+    install).
+
+If you're on Windows, check
+[the section on WSL](#patching-and-building-is-really-slow-what-can-i-do).
+
+If you're compiling with Docker, you can use Adoptium's
+[`eclipse-temurin`](https://hub.docker.com/_/eclipse-temurin/) images like so:
+
+```console
+# docker run -it -v "$(pwd)":/data --rm eclipse-temurin:21.0.3_9-jdk bash
+Pulling image...
+
+root@abcdefg1234:/# javac -version
+javac 21.0.3
+```
+
+## Understanding Patches
+
+Paper is mostly patches and extensions to Spigot. These patches/extensions are
+split into different directories which target certain parts of the code. These
+directories are:
+
+- `Paper-API` - Modifications to `Spigot-API`/`Bukkit`;
+- `Paper-Server` - Modifications to `Spigot`/`CraftBukkit`.
+
+Because the entire structure is based on patches and git, a basic understanding
+of how to use git is required. A basic tutorial can be found here:
+<https://git-scm.com/docs/gittutorial>.
+
+Assuming you have already forked the repository:
+
+1. Clone your fork to your local machine;
+2. Type `./gradlew applyPatches` in a terminal to apply the changes from upstream.
+On Windows, replace the `./` with `.\` at the beginning for all `gradlew` commands;
+3. cd into `Paper-Server` for server changes, and `Paper-API` for API changes.  
+<!--You can also run `./paper server` or `./paper api` for these same directories
+respectively.
+1. You can also run `./paper setup`, which allows you to type `paper <command>`
+from anywhere in the Paper structure in most cases.-->
+
+`Paper-Server` and `Paper-API` aren't git repositories in the traditional sense:
+
+- `base` points to the unmodified source before Paper patches have been applied.
+- Each commit after `base` is a patch.
+
+## Adding Patches
+
+Adding patches to Paper is very simple:
+
+1. Modify `Paper-Server` and/or `Paper-API` with the appropriate changes;
+1. Type `git add .` inside these directories to add your changes;
+1. Run `git commit` with the desired patch message;
+1. Run `./gradlew rebuildPatches` in the main directory to convert your commit into a new
+patch;
+1. PR the generated patch file(s) back to this repository.
+
+Your commit will be converted into a patch that you can then PR into Paper.
+
+> ❗ Please note that if you have some specific implementation detail you'd like
+> to document, you should do so in the patch message *or* in comments.
+
+## Modifying Patches
+
+Modifying previous patches is a bit more complex.
+Similar to adding patches, the methods to modify a patch are applied inside
+the `Paper-Server` and/or `Paper-API` folders.
+
+### Method 1
+
+This method works by temporarily resetting your `HEAD` to the desired commit to
+edit it using `git rebase`.
+
+> ❗ While in the middle of an edit, you will not be able to compile unless you
+> *also* reset the opposing module(s) to a related commit. In the API's case,
+> you must reset the Server, and reset the API if you're editing the Server.
+> Note also that either module _may_ not compile when doing so. This is not
+> ideal nor intentional, but it happens. Feel free to fix this in a PR to us!
+
+1. If you have changes you are working on, type `git stash` to store them for
+later;
+   - You can type `git stash pop` to get them back at any point.
+1. Type `git rebase -i base`;
+   - It should show something like
+   [this](https://gist.github.com/zachbr/21e92993cb99f62ffd7905d7b02f3159) in
+   the text editor you get.
+   - If your editor does not have a "menu" at the bottom, you're using `vim`.  
+   If you don't know how to use `vim` and don't want to
+   learn, enter `:q!` and press enter. Before redoing this step, do
+   `export EDITOR=nano` for an easier editor to use.
+1. Replace `pick` with `edit` for the commit/patch you want to modify, and
+"save" the changes;
+   - Only do this for **one** commit at a time.
+1. Make the changes you want to make to the patch;
+1. Type `git add .` to add your changes;
+1. Type `git commit --amend` to commit;
+   - **Make sure to add `--amend`** or else a new patch will be created.
+   - You can also modify the commit message and author here.
+1. Type `git rebase --continue` to finish rebasing;
+1. Type `./gradlew rebuildPatches` in the root directory;
+   - This will modify the appropriate patches based on your commits.
+1. PR your modified patch file(s) back to this repository.
+
+### Method 2 - Fixup commits
+
+If you are simply editing a more recent commit or your change is small, simply
+making the change at HEAD and then moving the commit after you have tested it
+may be easier.
+
+This method has the benefit of being able to compile to test your change without
+messing with your HEADs.
+
+#### Manual method
+
+1. Make your change while at HEAD;
+1. Make a temporary commit. You don't need to make a message for this;
+1. Type `git rebase -i base`, move (cut) your temporary commit and
+move it under the line of the patch you wish to modify;
+1. Change the `pick` to the appropriate action:
+   1. `f`/`fixup`: Merge your changes into the patch without touching the
+  message.
+   1. `s`/`squash`: Merge your changes into the patch and use your commit message
+  and subject.
+1. Type `./gradlew rebuildPatches` in the root directory;
+   - This will modify the appropriate patches based on your commits.
+1. PR your modified patch file(s) back to this repository.
+
+#### Automatic method
+
+1. Make your change while at HEAD;
+1. Make a fixup commit. `git commit -a --fixup <hashOfPatchToFix>`;
+   - You can also use `--squash` instead of `--fixup` if you want the commit
+   message to also be changed.
+   - You can get the hash by looking at `git log` or `git blame`; your IDE can
+  assist you too.
+   - Alternatively, if you only know the name of the patch, you can do
+  `git commit -a --fixup "Subject of Patch name"`.
+1. Rebase with autosquash: `git rebase -i --autosquash base`.
+This will automatically move your fixup commit to the right place, and you just
+need to "save" the changes.
+1. Type `./gradlew rebuildPatches` in the root directory;
+   - This will modify the appropriate patches based on your commits.
+1. PR your modified patch file(s) back to this repository.
+
+## Rebasing PRs
+
+Steps to rebase a PR to include the latest changes from `master`.  
+These steps assume the `origin` remote is your fork of this repository and `upstream` is the official PaperMC repository.
+
+1. Pull the latest changes from upstreams master: `git checkout master && git pull upstream master`.
+1. Checkout feature/fix branch and rebase on master: `git checkout patch-branch && git rebase master`.
+1. Apply updated patches: `./gradlew applyPatches`.
+1. If there are conflicts, fix them.
+   * If there are conflicts within `Paper-API`, after fixing them run `./gradlew rebuildApiPatches` before re-running `./gradlew applyPatches`.
+   * The API patches are applied first, so if there are conflicts in the API patches, the server patches will not be applied.
+1. If your PR creates new patches instead of modifying existing ones, in both the `Paper-Server` and `Paper-API` directories, ensure your newly-created patch is the last commit by either:
+    * Renaming the patch file with a large 4-digit number in front (e.g. 9999-Patch-to-add-some-new-stuff.patch), and re-applying patches.
+    * Running `git rebase --interactive base` and moving the commits to the end.
+1. Rebuild patches: `./gradlew rebuildPatches`.
+1. Commit modified patches.
+1. Force push changes: `git push --force`.
+
+## PR Policy
+
+We'll accept changes that make sense. You should be able to justify their
+existence, along with any maintenance costs that come with them. Using
+[obfuscation helpers](#obfuscation-helpers) aids in the maintenance costs.
+Remember that these changes will affect everyone who runs Paper, not just you
+and your server.
+
+While we will fix minor formatting issues, you should stick to the guide below
+when making and submitting changes.
+
+## Formatting
+
+All modifications to non-Paper files should be marked. The one exception to this is
+when modifying javadoc comments, which should not have these markers.
+
+- You need to add a comment with a short and identifiable description of the patch:
+  `// Paper start - <COMMIT DESCRIPTION>`
+    - The comments should generally be about the reason the change was made, what
+      it was before, or what the change is.
+    - After the general commit description, you can add additional information either
+      after a `;` or in the next line.
+- Multi-line changes start with `// Paper start - <COMMIT DESCRIPTION>` and end
+  with `// Paper end - <COMMIT DESCRIPTION>`.
+- One-line changes should have `// Paper - <COMMIT DESCRIPTION>` at the end of the line.
+
+Here's an example of how to mark changes by Paper:
+
+```java
+entity.getWorld().dontBeStupid(); // Paper - Was beStupid(), which is bad
+entity.getFriends().forEach(Entity::explode);
+entity.updateFriends();
+
+// Paper start - Use plugin-set spawn
+// entity.getWorld().explode(entity.getWorld().getSpawn());
+Location spawnLocation = ((CraftWorld)entity.getWorld()).getSpawnLocation();
+entity.getWorld().explode(new BlockPosition(spawnLocation.getX(), spawnLocation.getY(), spawnLocation.getZ()));
+// Paper end - Use plugin-set spawn
+```
+
+We generally follow the usual Java style (aka. Oracle style), or what is programmed
+into most IDEs and formatters by default. There are a few notes, however:
+- It is fine to go over 80 lines as long as it doesn't hurt readability.  
+There are exceptions, especially in Spigot-related files
+- When in doubt or the code around your change is in a clearly different style,
+use the same style as the surrounding code.
+- Usage of the `var` keyword is heavily discouraged, as it makes reading patch files
+a lot harder  and can lead to confusion during updates due to changed return types.
+The only exception to this is if a line would otherwise be way too long/filled with
+hard to parse generics in a case where the base type itself is already obvious
+
+### Imports
+When adding new imports to a class in a file not created by the current patch, use the fully qualified class name
+instead of adding a new import to the top of the file. If you are using a type a significant number of times, you
+can add an import with a comment. However, if its only used a couple of times, the FQN is preferred to prevent future
+patch conflicts in the import section of the file.
+
+### Nullability annotations
+
+We are in the process of switching nullability annotation libraries, so you might need to use one or the other:
+
+**For classes we add**: Fields, method parameters and return types that are nullable should be marked via the
+`@Nullable` annotation from `org.jspecify.annotations`. Whenever you create a new class, add `@NullMarked`, meaning types
+are assumed to be non-null by default. For less obvious placing such as on generics or arrays, see the [JSpecify docs](https://jspecify.dev/docs/user-guide/).
+
+**For classes added by upstream**: Keep using both `@Nullable` and `@NotNull` from `org.jetbrains.annotations`. These
+will be replaced later.
+
+```java
+import org.bukkit.event.Event;
+// don't add import here, use FQN like below
+
+public class SomeEvent extends Event {
+    public final org.bukkit.Location newLocation; // Paper - add location
+}
+```
+
+## Access Transformers
+Sometimes, vanilla or CraftBukkit code already contains a field, method, or type you want to access
+but the visibility is too low (e.g. a private field in an entity class). Paper can use access transformers
+to change the visibility or remove the final modifier from fields, methods, and classes. Inside the `build-data/paper.at`
+file, you can add ATs that are applied when you `./gradlew applyPatches`. You can read about the format of ATs 
+[here](https://mcforge.readthedocs.io/en/latest/advanced/accesstransformers/#access-modifiers).
+
+### Important
+ATs should be included in the patch file which requires them within the commit message. Do not commit any changes to the
+`build-data/paper.at` file, just use it to initially change the visibility of members until you have finalized what you 
+need. Then, in the commit message for the patch which requires the ATs, add a header at the bottom of the commit message
+before any co-authors. It should look like the following after you `./gradlew rebuildPatches`.
+```
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Wed, 8 Jun 2022 22:20:16 -0700
+Subject: [PATCH] Paper config files
+
+This patch adds Paper configuration files.
+Access transformers for this patch are below, but before the co-authors.
+
+== AT ==
+public org.spigotmc.SpigotWorldConfig getBoolean(Ljava/lang/String;Z)Z
+public net.minecraft.world.level.NaturalSpawner SPAWNING_CATEGORIES
+
+Co-authored-by: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
+
+diff --git a/build.gradle.kts b/build.gradle.kts
+...
+```
+
+## Patch Notes
+
+When submitting patches to Paper, we may ask you to add notes to the patch
+header. While we do not require it for all changes, you should add patch notes
+when the changes you're making are technical, complex, or require an explanation
+of some kind. It is very likely that your patch will remain long after we've all
+forgotten about the details of your PR; patch notes will help us maintain it
+without having to dig back through GitHub history looking for your PR.
+
+These notes should express the intent of your patch, as well as any pertinent
+technical details we should keep in mind long-term. Ultimately, they exist to
+make it easier for us to maintain the patch across major version changes.
+
+If you add a message to your commit in the `Paper-Server`/`Paper-API`
+directories, the rebuild patches script will handle these patch notes
+automatically as part of generating the patch file. If you are not
+extremely careful, you should always just `squash` or `amend` a patch (see the
+above sections on modifying patches) and rebuild.
+
+Editing messages and patches by hand is possible, but you should patch and
+rebuild afterwards to make sure you did it correctly. This is slower than just
+modifying the patches properly after a few times, so you will not really gain
+anything but headaches from doing it by hand.
+
+Underneath is an example patch header/note:
+
+```patch
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <theboyetronic@gmail.com>
+Date: Sun, 15 Oct 2017 00:29:07 +0100
+Subject: [PATCH] revert serverside behavior of keepalives
+
+This patch intends to bump up the time that a client has to reply to the
+server back to 30 seconds as per pre 1.12.2, which allowed clients
+more than enough time to reply potentially allowing them to be less
+temperamental due to lag spikes on the network thread, e.g. that caused
+by plugins that are interacting with netty.
+
+We also add a system property to allow people to tweak how long the server
+will wait for a reply. There is a compromise here between lower and higher
+values, lower values will mean that dead connections can be closed sooner,
+whereas higher values will make this less sensitive to issues such as spikes
+from networking or during connections flood of chunk packets on slower clients,
+ at the cost of dead connections being kept open for longer.
+
+diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
+index a92bf8967..d0ab87d0f 100644
+--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
+```
+
+## Obfuscation Helpers
+
+While rarely needed, obfuscation helpers are sometimes useful when it comes
+to unmapped local variables, or poorly named method parameters. In an effort
+to make future updates easier on ourselves, Paper tries to use obfuscation
+helpers wherever it makes sense. The purpose of these helpers is to make the
+code more readable and maintainable. These helpers should be made easy to
+inline by the JVM wherever possible.
+
+An example of an obfuscation helper for a local variable:
+```java
+double d0 = entity.getX(); final double fromX = d0; // Paper - OBFHELPER
+// ...   
+this.someMethod(fromX); // Paper
+```
+
+While they may not always be done in exactly the same way, the general goal is
+always to improve readability and maintainability. Use your best judgment and do
+what fits best in your situation.
+
+## Configuration files
+
+To use a configurable value in your patch, add a new field in either the
+`GlobalConfiguration` or `WorldConfiguration` classes (inside the 
+`io.papermc.paper.configuration` package). Use `GlobalConfiguration` if a value
+must remain the same throughout all worlds, or the latter if it can change
+between worlds. World-specific configuration options are preferred whenever
+possible.
+
+### Example
+This is adding a new miscellaneous setting that doesn't seem to fit in other categories.
+Try to check and see if an existing category (inner class) exists that matches
+whatever configuration option you are adding.
+```java
+public class GlobalConfiguration {
+    // other sections
+    public class Misc extends ConfigurationPart {
+        // other settings
+        public boolean lagCompensateBlockBreaking = true;
+        public boolean useDimensionTypeForCustomSpawners = false;
+        public int maxNumOfPlayers = 20; // This is the new setting
+    }
+}
+```
+You set the type of the setting as the field type, and the default value is the
+initial field value. The name of the setting defaults to the snake-case of the
+field name, so in this case it would be `misc.max-num-of-players`. You can use
+the `@Setting` annotation to override that, but generally just try to set the 
+field name to what you want the setting to be called.
+
+#### Accessing the value
+If you added a new global config value, you can access it in the code just by
+doing
+```java
+int maxPlayers = GlobalConfiguration.get().misc.maxNumOfPlayers;
+```
+Generally for global config values you will use the fully qualified class name,
+`io.papermc.paper.configuration.GlobalConfiguration` since it's not imported in
+most places.
+---
+If you are adding a new world config value, you must have access to an instance
+of the `net.minecraft.world.level.Level` which you can then access the config by doing
+```java
+int maxPlayers = level.paperConfig().misc.maxNumOfPlayers;
+```
+
+#### Committing changes
+All changes to the `GlobalConfiguration` and `WorldConfiguration` files
+should be done in the commit that created them. So do an interactive rebase
+or fixup to apply just those changes to that commit, then add a new commit
+that includes the logic that uses that option in the server somewhere.
+
+## Testing API changes
+
+### Using the Paper Test Plugin
+
+The Paper project has a `test-plugin` module for easily testing out API changes
+and additions. To use the test plugin, enable it in `test-plugin.settings.gradle.kts`,
+which will be generated after running Gradle at least once. After this, you can edit
+the test plugin, and run a server with the plugin using `./gradlew runDev` (or any
+of the other Paper run tasks).
+
+### Publishing to Maven local (use in external plugins)
+
+To build and install the Paper APIs and Server to your local Maven repository, do the following:
+
+- Run `./gradlew publishToMavenLocal` in the base directory.
+
+If you use Gradle to build your plugin:
+- Add `mavenLocal()` as a repository. Gradle checks repositories in the order they are declared,
+  so if you also have the Paper repository added, put the local repository above Paper's.
+- Make sure to remove `mavenLocal()` when you are done testing, see the [Gradle docs](https://docs.gradle.org/current/userguide/declaring_repositories.html#sec:case-for-maven-local)
+  for more details.
+
+If you use Maven to build your plugin:
+- If you later need to use the Paper-API, you might want to remove the jar
+  from your local Maven repository.  
+  If you use Windows and don't usually build using WSL, you might not need to
+  do this.
+
+## Frequently Asked Questions
+
+### I can't find the NMS file I need!
+
+By default, Paper (and upstream) only import files we make changes to. If you
+would like to make changes to a file that isn't present in `Paper-Server`'s
+source directory, you just need to add it to our import script ran during the
+patching process.
+
+1. Save (rebuild) any patches you are in the middle of working on! Their
+progress will be lost if you do not;
+1. Identify the name(s) of the file(s) you want to import.
+   - A complete list of all possible file names can be found at
+   `./Paper-Server/.gradle/caches/paperweight/mc-dev-sources/net/minecraft/`. You might find
+   [MappingViewer] useful if you need to translate between Mojang and Spigot mapped names.
+1. Open the file at `./build-data/dev-imports.txt` and add the name of your file to
+the script. Follow the instructions there;
+1. Re-patch the server `./gradlew applyPatches`;
+1. Edit away!
+
+> ❗ This change is temporary! **DO NOT COMMIT CHANGES TO THIS FILE!**  
+> Once you have made your changes to the new file, and rebuilt patches, you may
+> undo your changes to `dev-imports.txt`.
+
+Any file modified in a patch file gets automatically imported, so you only need
+this temporarily to import it to create the first patch.
+
+To undo your changes to the file, type `git checkout build-data/dev-imports.txt`.
+
+### My commit doesn't need a build, what do I do?
+
+Well, quite simple: You add `[ci skip]` to the start of your commit subject.
+
+This case most often applies to changes to files like `README.md`, this very
+file (`CONTRIBUTING.md`), the `LICENSE.md` file, and so forth.
+
+### Patching and building is *really* slow, what can I do?
+
+This only applies if you're running Windows. If you're running a prior Windows
+release, either update to Windows 10/11 or move to macOS/Linux/BSD.
+
+In order to speed up patching process on Windows, it's recommended you get WSL
+2. This is available in Windows 10 v2004, build 19041 or higher. (You can check
+your version by running `winver` in the run window (Windows key + R)). If you're
+using an out of date version of Windows 10, update your system with the
+[Windows 10 Update Assistant](https://www.microsoft.com/en-us/software-download/windows10) or [Windows 11 Update Assistant](https://www.microsoft.com/en-us/software-download/windows11).
+
+To set up WSL 2, follow the information here:
+<https://docs.microsoft.com/en-us/windows/wsl/install>
+
+You will most likely want to use the Ubuntu apps. Once it's set up, install the
+required tools with `sudo apt-get update && sudo apt-get install $TOOL_NAMES
+-y`. Replace `$TOOL_NAMES` with the packages found in the
+[requirements](#requirements). You can now clone the repository and do
+everything like usual.
+
+> ❗ Do not use the `/mnt/` directory in WSL! Instead, mount the WSL directories
+> in Windows like described here:
+> <https://docs.microsoft.com/en-us/windows/wsl/filesystems#view-your-current-directory-in-windows-file-explorer>
+
+[MappingViewer]: https://mappings.cephx.dev/
--- a/LICENSE.md
+++ b/LICENSE.md
@ -0,0 +1,68 @@
+Paper inherits its licensing from upstream projects.
+
+As such, Paper is licensed under the
+[GNU General Public License version 3](licenses/GPL.md); as it inherits it from Spigot,
+who in turn inherits it from the original Bukkit and Craftbukkit projects.
+
+Any author who is _not_ listed below should be presumed to have released their work
+under the original [GPL](licenses/GPL.md) license.
+
+In the interest of promoting a better Minecraft platform for everyone, contributors
+may choose to release their code under the more permissive [MIT License](licenses/MIT.md).
+
+The authors listed below have chosen to release their code under that more permissive
+[MIT License](licenses/MIT.md). Any contributor who wants their name added below
+should submit a pull request to this project to add their name.
+
+```text
+Zach Brown <1254957+zachbr@users.noreply.github.com>
+Daniel Ennis <aikar@aikar.co>
+Riley Park <rileysebastianpark@gmail.com>
+Black Hole <black-hole@live.com>
+Mark Vainomaa <mikroskeem@mikroskeem.eu>
+Mystiflow <mystiflow@gmail.com>
+Shane Freeder <theboyetronic@gmail.com>
+Gabscap <git@gabscap.de>
+Jadon Fowler <jadonflower@gmail.com>
+chickeneer <emcchickeneer@gmail.com>
+Minecrell <minecrell@minecrell.net>
+Techcable <Techcable@outlook.com>
+BillyGalbreath <blake.galbreath@gmail.com>
+MiniDigger | Martin <admin@minidigger.dev>
+Brokkonaut <hannos17@gmx.de>
+vemacs <d@nkmem.es>
+stonar96 <minecraft.stonar96@gmail.com>
+Hugo Manrique <hugmanrique@gmail.com>
+willies952002 <admin@domnian.com>
+MicleBrick <miclebrick@outlook.com>
+Trigary <trigary0@gmail.com>
+rickyboy320 <rickw320@hotmail.com>
+DoNotSpamPls <7570108+DoNotSpamPls@users.noreply.github.com>
+Josh Roy <10731363+JRoy@users.noreply.github.com>
+ysl3000 <yannicklamprecht@live.de>
+Machine_Maker <machine@machinemaker.me>
+Ivan Pekov <ivan@mrivanplays.com>
+Camotoy <20743703+Camotoy@users.noreply.github.com>
+Bjarne Koll <git@lynxplay.dev>
+MeFisto94 <MeFisto94@users.noreply.github.com>
+Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
+LemonCaramel <admin@caramel.moe>
+Noah van der Aa <ndvdaa@gmail.com>
+Doc <nachito94@msn.com>
+Nick Hensel <nickhensel25@icloud.com>
+vytskalt <vytskalt@protonmail.com>
+TheFruxz <cedricspitzer@outlook.de>
+Kieran Wallbanks <kieran.wallbanks@gmail.com>
+Denery <dorofeevij@gmail.com>
+Jakubk15 <jakubk15@protonmail.com>
+Redned <redned235@gmail.com>
+Luke Chambers <consolelogluke@gmail.com>
+Emily <emilia.lopezf.1999@gmail.com>
+dawon <dawon@dawon.eu>
+Ollie <69084614+olijeffers0n@users.noreply.github.com>
+Oliwier Miodun <naczs@blueflow.pl>
+aerulion <aerulion@gmail.com>
+Lukas Planz <lukas.planz@web.de>
+granny <contact@granny.dev>
+mja00 <me@mja00.dev>
+```
--- a/README.md
+++ b/README.md
@ -0,0 +1,96 @@
+Paper [![Paper Build Status](https://img.shields.io/github/actions/workflow/status/PaperMC/Paper/build.yml?branch=master)](https://github.com/PaperMC/Paper/actions)
+[![Discord](https://img.shields.io/discord/289587909051416579.svg?label=&logo=discord&logoColor=ffffff&color=7389D8&labelColor=6A7EC2)](https://discord.gg/papermc)
+[![GitHub Sponsors](https://img.shields.io/github/sponsors/papermc?label=GitHub%20Sponsors)](https://github.com/sponsors/PaperMC)
+[![Open Collective](https://img.shields.io/opencollective/all/papermc?label=OpenCollective%20Sponsors)](https://opencollective.com/papermc)
+===========
+
+The most widely used, high-performance Minecraft server that aims to fix gameplay and mechanics inconsistencies.
+
+
+**Support and Project Discussion:**
+- [Our forums](https://forums.papermc.io/) or [Discord](https://discord.gg/papermc)
+
+How To (Server Admins)
+------
+Paperclip is a jar file that you can download and run just like a normal jar file.
+
+Download Paper from our [downloads page](https://papermc.io/downloads/paper).
+
+Run the Paperclip jar directly from your server. Just like old times
+
+* Documentation on using Paper: [docs.papermc.io](https://docs.papermc.io)
+* For a sneak peek at upcoming features, [see here](https://github.com/PaperMC/Paper/projects)
+
+How To (Plugin Developers)
+------
+* See our API patches [here](patches/api)
+* See upcoming, pending, and recently added API [here](https://github.com/orgs/PaperMC/projects/2/views/4)
+* Paper API javadocs here: [papermc.io/javadocs](https://papermc.io/javadocs/)
+#### Repository (for paper-api)
+##### Maven
+
+```xml
+<repository>
+    <id>papermc</id>
+    <url>https://repo.papermc.io/repository/maven-public/</url>
+</repository>
+```
+
+```xml
+<dependency>
+    <groupId>io.papermc.paper</groupId>
+    <artifactId>paper-api</artifactId>
+    <version>1.21.4-R0.1-SNAPSHOT</version>
+    <scope>provided</scope>
+</dependency>
+```
+##### Gradle
+```kotlin
+repositories {
+    maven {
+        url = uri("https://repo.papermc.io/repository/maven-public/")
+    }
+}
+
+dependencies {
+    compileOnly("io.papermc.paper:paper-api:1.21.4-R0.1-SNAPSHOT")
+}
+
+java {
+    toolchain.languageVersion.set(JavaLanguageVersion.of(21))
+}
+```
+
+How To (Compiling Jar From Source)
+------
+To compile Paper, you need JDK 21 and an internet connection.
+
+Clone this repo, run `./gradlew applyPatches`, then `./gradlew createMojmapBundlerJar` from your terminal. You can find the compiled jar in the project root's `build/libs` directory.
+
+To get a full list of tasks, run `./gradlew tasks`.
+
+How To (Pull Request)
+------
+See [Contributing](CONTRIBUTING.md)
+
+Support Us
+------
+First of all, thank you for considering helping out, we really appreciate that!
+
+PaperMC has various recurring expenses, mostly related to infrastructure. Paper uses [Open Collective](https://opencollective.com/) via the [Open Source Collective fiscal host](https://opencollective.com/opensource) to manage expenses. Open Collective allows us to be extremely transparent, so you can always see how your donations are used. You can read more about financially supporting PaperMC [on our website](https://papermc.io/sponsors).
+
+You can find our collective [here](https://opencollective.com/papermc), or you can donate via GitHub Sponsors [here](https://github.com/sponsors/PaperMC), which will also go towards the collective.
+
+Special Thanks To:
+-------------
+
+[![YourKit-Logo](https://www.yourkit.com/images/yklogo.png)](https://www.yourkit.com/)
+
+[YourKit](https://www.yourkit.com/), makers of the outstanding java profiler, support open source projects of all kinds with their full featured [Java](https://www.yourkit.com/java/profiler) and [.NET](https://www.yourkit.com/.net/profiler) application profilers. We thank them for granting Paper an OSS license so that we can make our software the best it can be.
+
+[<img src="https://user-images.githubusercontent.com/21148213/121807008-8ffc6700-cc52-11eb-96a7-2f6f260f8fda.png" alt="" width="150">](https://www.jetbrains.com)
+
+[JetBrains](https://www.jetbrains.com/), creators of the IntelliJ IDEA, supports Paper with one of their [Open Source Licenses](https://www.jetbrains.com/opensource/). IntelliJ IDEA is the recommended IDE for working with Paper, and most of the Paper team uses it.
+
+All our sponsors!  
+[![Sponsor Image](https://raw.githubusercontent.com/PaperMC/papermc.io/data/sponsors.png)](https://papermc.io/sponsors)
--- a/SECURITY.md
+++ b/SECURITY.md
@ -0,0 +1,14 @@
+# Security Policy
+
+## Supported Versions
+
+We generally only fully support the latest version, the same applies to exploits such as server crashes and item
+duplication bugs. In the transition period during larger Minecraft updates, we may still backport important fixes to the
+last minor or major release.
+
+## Reporting a Vulnerability
+
+For any issues that are NOT duplication bugs, server/client crashes, or otherwise serious exploits, please open an issue
+through the [Issues tab](https://github.com/PaperMC/Paper/issues).
+For exploits, please [join our Discord](https://discord.gg/papermc) and see the [#paper-exploit-report channel](https://discord.com/channels/289587909051416579/1208749386348101682) for
+further instructions.
--- a/build-data/dev-imports.txt
+++ b/build-data/dev-imports.txt
@ -0,0 +1,15 @@
+# You can use this file to import files from minecraft libraries into the project
+# format:
+#     <artifactId> <fileName>
+# both fully qualified and a file based syntax are accepted for <fileName>:
+#     authlib com/mojang/authlib/yggdrasil/YggdrasilGameProfileRepository.java
+#     datafixerupper com.mojang.datafixers.DataFixerBuilder
+#     datafixerupper com/mojang/datafixers/util/Either.java
+# To import classes from the vanilla Minecraft jar use `minecraft` as the artifactId:
+#     minecraft net.minecraft.world.level.entity.LevelEntityGetterAdapter
+#     minecraft net/minecraft/world/level/entity/LevelEntityGetter.java
+# To import minecraft data files, like the default chat type, use `mc_data` as the prefix:
+#     mc_data chat_type/chat.json
+#     mc_data dimension_type/overworld.json
+#
+
--- a/build-data/mappings-patch.tiny
+++ b/build-data/mappings-patch.tiny
@ -0,0 +1,5 @@
+tiny	2	0	spigot	mojang+yarn
+
+# Originally DistanceManager, which also implements DistanceManager, so clashes since the implemented class
+# is imported and not fully qualified. Easiest fix is to just change the name
+c	net/minecraft/server/level/PlayerChunkMap$a	net/minecraft/server/level/ChunkMap$ChunkDistanceManager
--- a/build-data/paper.at
+++ b/build-data/paper.at
@ -0,0 +1,18 @@
+# You can use this file to change the access modifiers on a member
+# This line would make the field rollAmount public in Bee
+#public net.minecraft.world.entity.animal.Bee rollAmount
+# This line would make the field public and remove the final modifier
+#public-f net.minecraft.network.protocol.game.ClientboundChatPacket sender
+# Leave out the member and it will apply to the class itself
+# More info, see here https://mcforge.readthedocs.io/en/latest/advanced/accesstransformers/#access-modifiers
+
+# Remap/Decompile fix (unclear why this is happening)
+public net.minecraft.server.MinecraftServer doRunTask(Lnet/minecraft/server/TickTask;)V
+
+# AT remap issue? todo 1.18
+public net.minecraft.world.level.dimension.end.EndDragonFight findExitPortal()Lnet/minecraft/world/level/block/state/pattern/BlockPattern$BlockPatternMatch;
+public net.minecraft.nbt.TagParser readArrayTag()Lnet/minecraft/nbt/Tag;
+
+# TODO 1.20 remapSpigotAt.at doesn't remap the return type for this method for some reason
+public net/minecraft/world/entity/Display$TextDisplay getText()Lnet/minecraft/network/chat/Component;
+public net/minecraft/world/entity/Display$BlockDisplay getBlockState()Lnet/minecraft/world/level/block/state/BlockState;
--- a/build-data/reobf-mappings-patch.tiny
+++ b/build-data/reobf-mappings-patch.tiny
@ -0,0 +1,28 @@
+# We would like for paperweight to generate 100% perfect reobf mappings (and deobf mappings for that matter).
+# But unfortunately it's not quite there yet - and it may be some time before that happens. Generating perfect mappings
+# from Spigot's mappings is extremely difficult due to Spigot's bad tooling and bad mappings. To add insult to injury
+# we remap Spigot's _source code_ which is a lot more complex and error-prone than bytecode remapping. So with all that
+# said, this file exists to help fill in the gap.
+#
+# We will continue to improve paperweight and will work on fixing these issues so they don't come up in the first place,
+# but these mappings exist to prevent these issues from holding everything else in Paper up while we work through all
+# of these issues. Due to the complex nature of mappings generation and the debugging difficulty involved it may take
+# a significant amount of time for us to track down every possible issue, so this file will likely be around and in
+# use - at least in some capacity - for a long time.
+
+tiny	2	0	mojang+yarn	spigot
+
+# CraftBukkit changes type
+c	net/minecraft/server/level/ServerLevel	net/minecraft/server/level/WorldServer
+	f	Lnet/minecraft/world/level/storage/PrimaryLevelData;	serverLevelData	L
+
+c	net/minecraft/world/level/chunk/LevelChunk	net/minecraft/world/level/chunk/Chunk
+	f	Lnet/minecraft/server/level/ServerLevel;	level	r
+
+# See mappings-patch.tiny
+c	net/minecraft/server/level/ChunkMap	net/minecraft/server/level/PlayerChunkMap
+	f	Lnet/minecraft/server/level/ChunkMap$ChunkDistanceManager;	distanceManager	G
+
+# The method is made public by Spigot, which then causes accidental overrides
+c	net/minecraft/world/entity/Entity	net/minecraft/world/entity/Entity
+	m	()Z	isInRain	isInRain0
--- a/build.gradle.kts
+++ b/build.gradle.kts
@ -0,0 +1,296 @@
+import io.papermc.paperweight.PaperweightException
+import io.papermc.paperweight.tasks.BaseTask
+import io.papermc.paperweight.util.*
+import org.gradle.api.tasks.testing.logging.TestExceptionFormat
+import org.gradle.api.tasks.testing.logging.TestLogEvent
+import java.io.ByteArrayOutputStream
+import java.nio.file.Path
+import java.util.regex.Pattern
+import kotlin.io.path.*
+
+plugins {
+    java
+    `maven-publish`
+    id("io.papermc.paperweight.core") version "1.7.7"
+}
+
+allprojects {
+    apply(plugin = "java")
+    apply(plugin = "maven-publish")
+
+    java {
+        toolchain {
+            languageVersion = JavaLanguageVersion.of(21)
+        }
+    }
+}
+
+val paperMavenPublicUrl = "https://repo.papermc.io/repository/maven-public/"
+
+subprojects {
+    tasks.withType<JavaCompile> {
+        options.encoding = Charsets.UTF_8.name()
+        options.release = 21
+        options.isFork = true
+    }
+    tasks.withType<Javadoc> {
+        options.encoding = Charsets.UTF_8.name()
+    }
+    tasks.withType<ProcessResources> {
+        filteringCharset = Charsets.UTF_8.name()
+    }
+    tasks.withType<Test> {
+        testLogging {
+            showStackTraces = true
+            exceptionFormat = TestExceptionFormat.FULL
+            events(TestLogEvent.STANDARD_OUT)
+        }
+    }
+
+    repositories {
+        mavenCentral()
+        maven(paperMavenPublicUrl)
+    }
+}
+
+val spigotDecompiler: Configuration by configurations.creating
+
+repositories {
+    mavenCentral()
+    maven(paperMavenPublicUrl) {
+        content {
+            onlyForConfigurations(
+                configurations.paperclip.name,
+                spigotDecompiler.name,
+            )
+        }
+    }
+}
+
+dependencies {
+    paramMappings("net.fabricmc:yarn:1.21.4+build.1:mergedv2")
+    remapper("net.fabricmc:tiny-remapper:0.10.3:fat")
+    decompiler("org.vineflower:vineflower:1.10.1")
+    spigotDecompiler("io.papermc:patched-spigot-fernflower:0.1+build.13")
+    paperclip("io.papermc:paperclip:3.0.3")
+}
+
+paperweight {
+    minecraftVersion = providers.gradleProperty("mcVersion")
+    serverProject = project(":paper-server")
+
+    paramMappingsRepo = paperMavenPublicUrl
+    remapRepo = paperMavenPublicUrl
+    decompileRepo = paperMavenPublicUrl
+
+    craftBukkit {
+        fernFlowerJar = layout.file(spigotDecompiler.elements.map { it.single().asFile })
+    }
+
+    paper {
+        spigotApiPatchDir = layout.projectDirectory.dir("patches/api")
+        spigotServerPatchDir = layout.projectDirectory.dir("patches/server")
+
+        mappingsPatch = layout.projectDirectory.file("build-data/mappings-patch.tiny")
+        reobfMappingsPatch = layout.projectDirectory.file("build-data/reobf-mappings-patch.tiny")
+
+        reobfPackagesToFix.addAll(
+            "co.aikar.timings",
+            "com.destroystokyo.paper",
+            "com.mojang",
+            "io.papermc.paper",
+            "ca.spottedleaf",
+            "net.kyori.adventure.bossbar",
+            "net.minecraft",
+            "org.bukkit.craftbukkit",
+            "org.spigotmc",
+        )
+    }
+}
+
+tasks.generateDevelopmentBundle {
+    apiCoordinates = "io.papermc.paper:paper-api"
+    libraryRepositories.addAll(
+        "https://repo.maven.apache.org/maven2/",
+        paperMavenPublicUrl,
+    )
+}
+
+publishing {
+    if (project.providers.gradleProperty("publishDevBundle").isPresent) {
+        publications.create<MavenPublication>("devBundle") {
+            artifact(tasks.generateDevelopmentBundle) {
+                artifactId = "dev-bundle"
+            }
+        }
+    }
+}
+
+allprojects {
+    publishing {
+        repositories {
+            maven("https://repo.papermc.io/repository/maven-snapshots/") {
+                name = "paperSnapshots"
+                credentials(PasswordCredentials::class)
+            }
+        }
+    }
+}
+
+tasks.register("printMinecraftVersion") {
+    doLast {
+        println(providers.gradleProperty("mcVersion").get().trim())
+    }
+}
+
+tasks.register("printPaperVersion") {
+    doLast {
+        println(project.version)
+    }
+}
+
+// see gradle.properties
+if (providers.gradleProperty("updatingMinecraft").getOrElse("false").toBoolean()) {
+    tasks.collectAtsFromPatches {
+        val dir = layout.projectDirectory.dir("patches/unapplied/server")
+        if (dir.path.isDirectory()) {
+            extraPatchDir = dir
+        }
+    }
+    tasks.withType<io.papermc.paperweight.tasks.RebuildGitPatches>().configureEach {
+        filterPatches = false
+    }
+    tasks.register("continueServerUpdate", RebasePatches::class) {
+        description = "Moves the next X patches from unapplied to applied, and applies them. X being the number of patches that apply cleanly, plus the terminal failure if any."
+        projectDir = project.projectDir
+        appliedPatches = file("patches/server")
+        unappliedPatches = file("patches/unapplied/server")
+        applyTaskName = "applyServerPatches"
+        patchedDir = "Paper-Server"
+    }
+}
+
+@UntrackedTask(because = "Does not make sense to track state")
+abstract class RebasePatches : BaseTask() {
+    @get:Internal
+    abstract val projectDir: DirectoryProperty
+
+    @get:InputFiles
+    abstract val appliedPatches: DirectoryProperty
+
+    @get:InputFiles
+    abstract val unappliedPatches: DirectoryProperty
+
+    @get:Input
+    abstract val applyTaskName: Property<String>
+
+    @get:Input
+    abstract val patchedDir: Property<String>
+
+    private fun unapplied(): List<Path> =
+        unappliedPatches.path.listDirectoryEntries("*.patch").sortedBy { it.name }
+
+    private fun appliedLoc(patch: Path): Path = appliedPatches.path.resolve(unappliedPatches.path.relativize(patch))
+
+    companion object {
+        val regex = Pattern.compile("Patch failed at ([0-9]{4}) (.*)")
+        val continuationRegex = Pattern.compile("^\\s{1}.+\$")
+        const val subjectPrefix = "Subject: [PATCH] "
+    }
+
+    @TaskAction
+    fun run() {
+        val patchedDirPath = projectDir.path.resolve(patchedDir.get())
+        if (patchedDirPath.isDirectory()) {
+            val status = Git(patchedDirPath)("status").getText()
+            if (status.contains("You are in the middle of an am session.")) {
+                throw PaperweightException("Cannot continue update when $patchedDirPath is in the middle of an am session.")
+            }
+        }
+
+        val unapplied = unapplied()
+        for (patch in unapplied) {
+            patch.copyTo(appliedLoc(patch))
+        }
+
+        val out = ByteArrayOutputStream()
+        val proc = ProcessBuilder()
+            .directory(projectDir.path)
+            .command("./gradlew", applyTaskName.get())
+            .redirectErrorStream(true)
+            .start()
+
+        val f = redirect(proc.inputStream, out)
+
+        val exit = proc.waitFor()
+        f.get()
+
+        if (exit != 0) {
+            val outStr = String(out.toByteArray())
+            val matcher = regex.matcher(outStr)
+            if (!matcher.find()) error("Could not determine failure point")
+            val failedSubjectFragment = matcher.group(2)
+            val failed = unapplied.single { p ->
+                p.useLines { lines ->
+                    val collect = mutableListOf<String>()
+                    for (line in lines) {
+                        if (line.startsWith(subjectPrefix)) {
+                            collect += line
+                        } else if (collect.size == 1) {
+                            if (continuationRegex.matcher(line).matches()) {
+                                collect += line
+                            } else {
+                                break
+                            }
+                        }
+                    }
+                    val subjectLine = collect.joinToString("").substringAfter(subjectPrefix)
+                    subjectLine.startsWith(failedSubjectFragment)
+                }
+            }
+
+            // delete successful & failure point from unapplied patches dir
+            for (path in unapplied) {
+                path.deleteIfExists()
+                if (path == failed) {
+                    break
+                }
+            }
+
+            // delete failed from patches dir
+            var started = false
+            for (path in unapplied) {
+                if (path == failed) {
+                    started = true
+                    continue
+                }
+                if (started) {
+                    appliedLoc(path).deleteIfExists()
+                }
+            }
+
+            // Delete the build file before resetting the AM session in case it has compilation errors
+            patchedDirPath.resolve("build.gradle.kts").deleteIfExists()
+            // Apply again to reset the am session (so it ends on the failed patch, to allow us to rebuild after fixing it)
+            val apply2 = ProcessBuilder()
+                .directory(projectDir.path)
+                .command("./gradlew", applyTaskName.get())
+                .redirectErrorStream(true)
+                .start()
+
+            val f1 = redirect(apply2.inputStream, System.out)
+            apply2.waitFor()
+            f1.get()
+
+            logger.lifecycle(outStr)
+            logger.lifecycle("Patch failed at $failed; See Git output above.")
+        } else {
+            unapplied.forEach { it.deleteIfExists() }
+            logger.lifecycle("All patches applied!")
+        }
+
+        val git = Git(projectDir.path)
+        git("add", appliedPatches.path.toString() + "/*").runSilently()
+        git("add", unappliedPatches.path.toString() + "/*").runSilently()
+    }
+}
--- a/feature-patches/1038-Optimize-isInWorldBounds-and-getBlockState-for-inlin.patch
+++ b/feature-patches/1038-Optimize-isInWorldBounds-and-getBlockState-for-inlin.patch
@ -0,0 +1,99 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 3 Mar 2016 02:07:55 -0600
+Subject: [PATCH] Optimize isInWorldBounds and getBlockState for inlining
+
+Hot methods, so reduce # of instructions for the method.
+
+Move is valid location test to the BlockPosition class so that it can access local variables.
+
+Replace all calls to the new place to the unnecessary forward.
+
+Optimize getType and getBlockData to manually inline and optimize the calls
+
+diff --git a/src/main/java/net/minecraft/core/Vec3i.java b/src/main/java/net/minecraft/core/Vec3i.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/core/Vec3i.java
+++ b/src/main/java/net/minecraft/core/Vec3i.java
+@@ -0,0 +0,0 @@ public class Vec3i implements Comparable<Vec3i> {
+         );
+     }
+ 
+    // Paper start
+    public final boolean isInsideBuildHeightAndWorldBoundsHorizontal(net.minecraft.world.level.LevelHeightAccessor levelHeightAccessor) {
+        return getX() >= -30000000 && getZ() >= -30000000 && getX() < 30000000 && getZ() < 30000000 && !levelHeightAccessor.isOutsideBuildHeight(getY());
+    }
+    // Paper end
+
+     public Vec3i(int x, int y, int z) {
+         this.x = x;
+         this.y = y;
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     // Paper end
+ 
+     public boolean isInWorldBounds(BlockPos pos) {
+-        return !this.isOutsideBuildHeight(pos) && Level.isInWorldBoundsHorizontal(pos);
+        return pos.isInsideBuildHeightAndWorldBoundsHorizontal(this); // Paper - use better/optimized check
+     }
+ 
+     public static boolean isInSpawnableBounds(BlockPos pos) {
+diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
+@@ -0,0 +0,0 @@ public abstract class ChunkAccess implements BiomeManager.NoiseBiomeSource, Ligh
+         return GameEventListenerRegistry.NOOP;
+     }
+ 
+    public abstract BlockState getBlockState(final int x, final int y, final int z); // Paper
+     @Nullable
+     public abstract BlockState setBlockState(BlockPos pos, BlockState state, boolean moved);
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java b/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ImposterProtoChunk.java
+@@ -0,0 +0,0 @@ public class ImposterProtoChunk extends ProtoChunk {
+     public BlockState getBlockState(BlockPos pos) {
+         return this.wrapped.getBlockState(pos);
+     }
+    // Paper start
+    @Override
+    public final BlockState getBlockState(final int x, final int y, final int z) {
+        return this.wrapped.getBlockStateFinal(x, y, z);
+    }
+    // Paper end
+ 
+     @Override
+     public FluidState getFluidState(BlockPos pos) {
+diff --git a/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java b/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ProtoChunk.java
+@@ -0,0 +0,0 @@ public class ProtoChunk extends ChunkAccess {
+ 
+     @Override
+     public BlockState getBlockState(BlockPos pos) {
+-        int i = pos.getY();
+-        if (this.isOutsideBuildHeight(i)) {
+        // Paper start
+        return getBlockState(pos.getX(), pos.getY(), pos.getZ());
+    }
+    public BlockState getBlockState(final int x, final int y, final int z) {
+        if (this.isOutsideBuildHeight(y)) {
+             return Blocks.VOID_AIR.defaultBlockState();
+         } else {
+-            LevelChunkSection levelChunkSection = this.getSection(this.getSectionIndex(i));
+-            return levelChunkSection.hasOnlyAir() ? Blocks.AIR.defaultBlockState() : levelChunkSection.getBlockState(pos.getX() & 15, i & 15, pos.getZ() & 15);
+            LevelChunkSection levelChunkSection = this.getSections()[this.getSectionIndex(y)];
+            return levelChunkSection.hasOnlyAir() ? Blocks.AIR.defaultBlockState() : levelChunkSection.getBlockState(x & 15, y & 15, z & 15);
+         }
+     }
+    // Paper end
+ 
+     @Override
+     public FluidState getFluidState(BlockPos pos) {
--- a/feature-patches/1039-Improve-Maps-in-item-frames-performance-and-bug-fixe.patch
+++ b/feature-patches/1039-Improve-Maps-in-item-frames-performance-and-bug-fixe.patch
@ -0,0 +1,124 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 29 Apr 2016 20:02:00 -0400
+Subject: [PATCH] Improve Maps (in item frames) performance and bug fixes
+
+Maps used a modified version of rendering to support plugin controlled
+imaging on maps. The Craft Map Renderer is much slower than Vanilla,
+causing maps in item frames to cause a noticeable hit on server performance.
+
+This updates the map system to not use the Craft system if we detect that no
+custom renderers are in use, defaulting to the much simpler Vanilla system.
+
+Additionally, numerous issues to player position tracking on maps has been fixed.
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+                             {
+                                 if ( iter.next().player == entity )
+                                 {
+                                    map.decorations.remove(entity.getName().getString()); // Paper
+                                     iter.remove();
+                                 }
+                             }
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
+                 this.awardStat(Stats.DROP);
+             }
+ 
+            // Paper start - remove player from map on drop
+            if (itemstack.getItem() == net.minecraft.world.item.Items.FILLED_MAP) {
+                net.minecraft.world.level.saveddata.maps.MapItemSavedData worldmap = net.minecraft.world.item.MapItem.getSavedData(itemstack, this.level());
+                if (worldmap != null) {
+                    worldmap.tickCarriedBy(this, itemstack);
+                    }
+                }
+            // Paper end
+             return entityitem;
+         }
+     }
+diff --git a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
+++ b/src/main/java/net/minecraft/world/level/saveddata/maps/MapItemSavedData.java
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+     public final Map<String, MapDecoration> decorations = Maps.newLinkedHashMap();
+     private final Map<String, MapFrame> frameMarkers = Maps.newHashMap();
+     private int trackedDecorationCount;
+    private org.bukkit.craftbukkit.map.RenderData vanillaRender = new org.bukkit.craftbukkit.map.RenderData(); // Paper
+ 
+     // CraftBukkit start
+     public final CraftMapView mapView;
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+         // CraftBukkit start
+         this.mapView = new CraftMapView(this);
+         this.server = (CraftServer) org.bukkit.Bukkit.getServer();
+        this.vanillaRender.buffer = colors; // Paper
+         // CraftBukkit end
+     }
+ 
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+         if (abyte.length == 16384) {
+             worldmap.colors = abyte;
+         }
+        worldmap.vanillaRender.buffer = abyte; // Paper
+ 
+         RegistryOps<Tag> registryops = registries.createSerializationContext(NbtOps.INSTANCE);
+         List<MapBanner> list = (List) MapBanner.LIST_CODEC.parse(registryops, nbt.get("banners")).resultOrPartial((s) -> {
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+             --this.trackedDecorationCount;
+         }
+ 
+-        this.setDecorationsDirty();
+        if (mapicon != null) this.setDecorationsDirty(); // Paper - only mark dirty if a change occurs
+     }
+ 
+     public static void addTargetDecoration(ItemStack stack, BlockPos pos, String id, Holder<MapDecorationType> decorationType) {
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+ 
+     public class HoldingPlayer {
+ 
+        // Paper start
+        private void addSeenPlayers(java.util.Collection<MapDecoration> icons) {
+            org.bukkit.entity.Player player = (org.bukkit.entity.Player) this.player.getBukkitEntity();
+            MapItemSavedData.this.decorations.forEach((name, mapIcon) -> {
+                // If this cursor is for a player check visibility with vanish system
+                org.bukkit.entity.Player other = org.bukkit.Bukkit.getPlayerExact(name); // Spigot
+                if (other == null || player.canSee(other)) {
+                    icons.add(mapIcon);
+                }
+            });
+        }
+        private boolean shouldUseVanillaMap() {
+            return mapView.getRenderers().size() == 1 && mapView.getRenderers().get(0).getClass() == org.bukkit.craftbukkit.map.CraftMapRenderer.class;
+        }
+        // Paper end
+         public final Player player;
+         private boolean dirtyData = true;
+         private int minDirtyX;
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+         @Nullable
+         Packet<?> nextUpdatePacket(MapId mapId) {
+             MapItemSavedData.MapPatch worldmap_c;
+-            org.bukkit.craftbukkit.map.RenderData render = MapItemSavedData.this.mapView.render((org.bukkit.craftbukkit.entity.CraftPlayer) this.player.getBukkitEntity()); // CraftBukkit
+            if (!this.dirtyData && this.tick % 5 != 0) { this.tick++; return null; } // Paper - this won't end up sending, so don't render it!
+            boolean vanillaMaps = shouldUseVanillaMap(); // Paper
+            org.bukkit.craftbukkit.map.RenderData render = !vanillaMaps ? MapItemSavedData.this.mapView.render((org.bukkit.craftbukkit.entity.CraftPlayer) this.player.getBukkitEntity()) : MapItemSavedData.this.vanillaRender; // CraftBukkit // Paper
+ 
+             if (this.dirtyData) {
+                 this.dirtyData = false;
+@@ -0,0 +0,0 @@ public class MapItemSavedData extends SavedData {
+                 // CraftBukkit start
+                 java.util.Collection<MapDecoration> icons = new java.util.ArrayList<MapDecoration>();
+ 
+                if (vanillaMaps) addSeenPlayers(icons); // Paper
+
+                 for (org.bukkit.map.MapCursor cursor : render.cursors) {
+                     if (cursor.isVisible()) {
+                         icons.add(new MapDecoration(CraftMapCursor.CraftType.bukkitToMinecraftHolder(cursor.getType()), cursor.getX(), cursor.getY(), cursor.getDirection(), Optional.ofNullable(PaperAdventure.asVanilla(cursor.caption()))));
--- a/feature-patches/1040-Optimize-Network-Manager-and-add-advanced-packet-sup.patch
+++ b/feature-patches/1040-Optimize-Network-Manager-and-add-advanced-packet-sup.patch
@ -0,0 +1,395 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 6 May 2020 04:53:35 -0400
+Subject: [PATCH] Optimize Network Manager and add advanced packet support
+
+Adds ability for 1 packet to bundle other packets to follow it
+Adds ability for a packet to delay sending more packets until a state is ready.
+
+Removes synchronization from sending packets
+Removes processing packet queue off of main thread
+  - for the few cases where it is allowed, order is not necessary nor
+    should it even be happening concurrently in first place (handshaking/login/status)
+
+Ensures packets sent asynchronously are dispatched on main thread
+
+This helps ensure safety for ProtocolLib as packet listeners
+are commonly accessing world state. This will allow you to schedule
+a packet to be sent async, but itll be dispatched sync for packet
+listeners to process.
+
+This should solve some deadlock risks
+
+Also adds Netty Channel Flush Consolidation to reduce the amount of flushing
+
+Also avoids spamming closed channel exception by rechecking closed state in dispatch
+and then catch exceptions and close if they fire.
+
+Part of this commit was authored by: Spottedleaf, sandtechnology
+
+diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     private static final ProtocolInfo<ServerHandshakePacketListener> INITIAL_PROTOCOL = HandshakeProtocols.SERVERBOUND;
+     private final PacketFlow receiving;
+     private volatile boolean sendLoginDisconnect = true;
+-    private final Queue<Consumer<Connection>> pendingActions = Queues.newConcurrentLinkedQueue();
+    private final Queue<WrappedConsumer> pendingActions = Queues.newConcurrentLinkedQueue(); // Paper
+     public Channel channel;
+     public SocketAddress address;
+     // Spigot Start
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     public java.net.InetSocketAddress virtualHost;
+     private static boolean enableExplicitFlush = Boolean.getBoolean("paper.explicit-flush"); // Paper - Disable explicit network manager flushing
+     // Paper end
+    // Paper start - Optimize network
+    public boolean isPending = true;
+    public boolean queueImmunity;
+    // Paper end - Optimize network
+ 
+     // Paper start - add utility methods
+     public final net.minecraft.server.level.ServerPlayer getPlayer() {
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     }
+ 
+     public void send(Packet<?> packet, @Nullable PacketSendListener callbacks, boolean flush) {
+-        if (this.isConnected()) {
+-            this.flushQueue();
+        // Paper start - Optimize network: Handle oversized packets better
+        final boolean connected = this.isConnected();
+        if (!connected && !this.preparing) {
+            return;
+        }
+
+        packet.onPacketDispatch(this.getPlayer());
+        if (connected && (InnerUtil.canSendImmediate(this, packet)
+            || (io.papermc.paper.util.MCUtil.isMainThread() && packet.isReady() && this.pendingActions.isEmpty()
+            && (packet.getExtraPackets() == null || packet.getExtraPackets().isEmpty())))) {
+             this.sendPacket(packet, callbacks, flush);
+         } else {
+-            this.pendingActions.add((networkmanager) -> {
+-                networkmanager.sendPacket(packet, callbacks, flush);
+-            });
+-        }
+            // Write the packets to the queue, then flush - antixray hooks there already
+            final java.util.List<Packet<?>> extraPackets = InnerUtil.buildExtraPackets(packet);
+            final boolean hasExtraPackets = extraPackets != null && !extraPackets.isEmpty();
+            if (!hasExtraPackets) {
+                this.pendingActions.add(new PacketSendAction(packet, callbacks, flush));
+            } else {
+                final java.util.List<PacketSendAction> actions = new java.util.ArrayList<>(1 + extraPackets.size());
+                actions.add(new PacketSendAction(packet, null, false)); // Delay the future listener until the end of the extra packets
+
+                for (int i = 0, len = extraPackets.size(); i < len;) {
+                    final Packet<?> extraPacket = extraPackets.get(i);
+                    final boolean end = ++i == len;
+                    actions.add(new PacketSendAction(extraPacket, end ? callbacks : null, end)); // Append listener to the end
+                }
+
+                this.pendingActions.addAll(actions);
+            }
+ 
+            this.flushQueue();
+            // Paper end - Optimize network
+        }
+     }
+ 
+     public void runOnceConnected(Consumer<Connection> task) {
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+             this.flushQueue();
+             task.accept(this);
+         } else {
+-            this.pendingActions.add(task);
+            this.pendingActions.add(new WrappedConsumer(task)); // Paper - Optimize network
+         }
+ 
+     }
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     }
+ 
+     private void doSendPacket(Packet<?> packet, @Nullable PacketSendListener callbacks, boolean flush) {
+        // Paper start - Optimize network
+        final net.minecraft.server.level.ServerPlayer player = this.getPlayer();
+        if (!this.isConnected()) {
+            packet.onPacketDispatchFinish(player, null);
+            return;
+        }
+        try {
+        // Paper end - Optimize network
+         ChannelFuture channelfuture = flush ? this.channel.writeAndFlush(packet) : this.channel.write(packet);
+ 
+         if (callbacks != null) {
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+             });
+         }
+ 
+        // Paper start - Optimize network
+        if (packet.hasFinishListener()) {
+            channelfuture.addListener((ChannelFutureListener) channelFuture -> packet.onPacketDispatchFinish(player, channelFuture));
+        }
+         channelfuture.addListener(ChannelFutureListener.FIRE_EXCEPTION_ON_FAILURE);
+        } catch (final Exception e) {
+            LOGGER.error("NetworkException: {}", player, e);
+            this.disconnect(Component.translatable("disconnect.genericReason", "Internal Exception: " + e.getMessage()));
+            packet.onPacketDispatchFinish(player, null);
+        }
+        // Paper end - Optimize network
+     }
+ 
+     public void flushChannel() {
+         if (this.isConnected()) {
+             this.flush();
+         } else {
+-            this.pendingActions.add(Connection::flush);
+            this.pendingActions.add(new WrappedConsumer(Connection::flush)); // Paper - Optimize network
+         }
+ 
+     }
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+ 
+     }
+ 
+-    private void flushQueue() {
+-        if (this.channel != null && this.channel.isOpen()) {
+-            Queue queue = this.pendingActions;
+-
+    // Paper start - Optimize network: Rewrite this to be safer if ran off main thread
+    private boolean flushQueue() {
+        if (!this.isConnected()) {
+            return true;
+        }
+        if (io.papermc.paper.util.MCUtil.isMainThread()) {
+            return this.processQueue();
+        } else if (this.isPending) {
+            // Should only happen during login/status stages
+             synchronized (this.pendingActions) {
+-                Consumer consumer;
+                return this.processQueue();
+            }
+        }
+        return false;
+    }
+
+    private boolean processQueue() {
+        if (this.pendingActions.isEmpty()) {
+            return true;
+        }
+ 
+-                while ((consumer = (Consumer) this.pendingActions.poll()) != null) {
+-                    consumer.accept(this);
+        // If we are on main, we are safe here in that nothing else should be processing queue off main anymore
+        // But if we are not on main due to login/status, the parent is synchronized on packetQueue
+        final java.util.Iterator<WrappedConsumer> iterator = this.pendingActions.iterator();
+        while (iterator.hasNext()) {
+            final WrappedConsumer queued = iterator.next(); // poll -> peek
+
+            // Fix NPE (Spigot bug caused by handleDisconnection())
+            if (queued == null) {
+                return true;
+            }
+
+            if (queued.isConsumed()) {
+                continue;
+            }
+
+            if (queued instanceof PacketSendAction packetSendAction) {
+                final Packet<?> packet = packetSendAction.packet;
+                if (!packet.isReady()) {
+                    return false;
+                 }
+            }
+ 
+            iterator.remove();
+            if (queued.tryMarkConsumed()) {
+                queued.accept(this);
+             }
+         }
+        return true;
+     }
+    // Paper end - Optimize network
+ 
+     private static final int MAX_PER_TICK = io.papermc.paper.configuration.GlobalConfiguration.get().misc.maxJoinsPerTick; // Paper - Buffer joins to world
+     private static int joinAttemptsThisTick; // Paper - Buffer joins to world
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     public void disconnect(DisconnectionDetails disconnectionInfo) {
+         // Spigot Start
+         this.preparing = false;
+        this.clearPacketQueue(); // Paper - Optimize network
+         // Spigot End
+         if (this.channel == null) {
+             this.delayedDisconnect = disconnectionInfo;
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     public void handleDisconnection() {
+         if (this.channel != null && !this.channel.isOpen()) {
+             if (this.disconnectionHandled) {
+-                Connection.LOGGER.warn("handleDisconnection() called twice");
+                // Connection.LOGGER.warn("handleDisconnection() called twice"); // Paper - Don't log useless message
+             } else {
+                 this.disconnectionHandled = true;
+                 PacketListener packetlistener = this.getPacketListener();
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+ 
+                     packetlistener1.onDisconnect(disconnectiondetails);
+                 }
+-                this.pendingActions.clear(); // Free up packet queue.
+                this.clearPacketQueue(); // Paper - Optimize network
+                 // Paper start - Add PlayerConnectionCloseEvent
+                 final PacketListener packetListener = this.getPacketListener();
+                 if (packetListener instanceof net.minecraft.server.network.ServerCommonPacketListenerImpl commonPacketListener) {
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+     public void setBandwidthLogger(LocalSampleLogger log) {
+         this.bandwidthDebugMonitor = new BandwidthDebugMonitor(log);
+     }
+
+    // Paper start - Optimize network
+    public void clearPacketQueue() {
+        final net.minecraft.server.level.ServerPlayer player = getPlayer();
+        for (final Consumer<Connection> queuedAction : this.pendingActions) {
+            if (queuedAction instanceof PacketSendAction packetSendAction) {
+                final Packet<?> packet = packetSendAction.packet;
+                if (packet.hasFinishListener()) {
+                    packet.onPacketDispatchFinish(player, null);
+                }
+            }
+        }
+        this.pendingActions.clear();
+    }
+
+    private static class InnerUtil { // Attempt to hide these methods from ProtocolLib, so it doesn't accidently pick them up.
+
+        @Nullable
+        private static java.util.List<Packet<?>> buildExtraPackets(final Packet<?> packet) {
+            final java.util.List<Packet<?>> extra = packet.getExtraPackets();
+            if (extra == null || extra.isEmpty()) {
+                return null;
+            }
+
+            final java.util.List<Packet<?>> ret = new java.util.ArrayList<>(1 + extra.size());
+            buildExtraPackets0(extra, ret);
+            return ret;
+        }
+
+        private static void buildExtraPackets0(final java.util.List<Packet<?>> extraPackets, final java.util.List<Packet<?>> into) {
+            for (final Packet<?> extra : extraPackets) {
+                into.add(extra);
+                final java.util.List<Packet<?>> extraExtra = extra.getExtraPackets();
+                if (extraExtra != null && !extraExtra.isEmpty()) {
+                    buildExtraPackets0(extraExtra, into);
+                }
+            }
+        }
+
+        private static boolean canSendImmediate(final Connection networkManager, final net.minecraft.network.protocol.Packet<?> packet) {
+            return networkManager.isPending || networkManager.packetListener.protocol() != ConnectionProtocol.PLAY ||
+                packet instanceof net.minecraft.network.protocol.common.ClientboundKeepAlivePacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundPlayerChatPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSystemChatPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundCommandSuggestionsPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSetTitleTextPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSetSubtitleTextPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSetActionBarTextPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSetTitlesAnimationPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundClearTitlesPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSoundPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundSoundEntityPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundStopSoundPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundLevelParticlesPacket ||
+                packet instanceof net.minecraft.network.protocol.game.ClientboundBossEventPacket;
+        }
+    }
+
+    private static class WrappedConsumer implements Consumer<Connection> {
+        private final Consumer<Connection> delegate;
+        private final java.util.concurrent.atomic.AtomicBoolean consumed = new java.util.concurrent.atomic.AtomicBoolean(false);
+
+        private WrappedConsumer(final Consumer<Connection> delegate) {
+            this.delegate = delegate;
+        }
+
+        @Override
+        public void accept(final Connection connection) {
+            this.delegate.accept(connection);
+        }
+
+        public boolean tryMarkConsumed() {
+            return consumed.compareAndSet(false, true);
+        }
+
+        public boolean isConsumed() {
+            return consumed.get();
+        }
+    }
+
+    private static final class PacketSendAction extends WrappedConsumer {
+        private final Packet<?> packet;
+
+        private PacketSendAction(final Packet<?> packet, @Nullable final PacketSendListener packetSendListener, final boolean flush) {
+            super(connection -> connection.sendPacket(packet, packetSendListener, flush));
+            this.packet = packet;
+        }
+    }
+    // Paper end - Optimize network
+ }
+diff --git a/src/main/java/net/minecraft/network/protocol/Packet.java b/src/main/java/net/minecraft/network/protocol/Packet.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/Packet.java
+++ b/src/main/java/net/minecraft/network/protocol/Packet.java
+@@ -0,0 +0,0 @@ public interface Packet<T extends PacketListener> {
+     static <B extends ByteBuf, T extends Packet<?>> StreamCodec<B, T> codec(StreamMemberEncoder<B, T> encoder, StreamDecoder<B, T> decoder) {
+         return StreamCodec.ofMember(encoder, decoder);
+     }
+
+    // Paper start
+    /**
+     * @param player Null if not at PLAY stage yet
+     */
+    default void onPacketDispatch(@org.jetbrains.annotations.Nullable net.minecraft.server.level.ServerPlayer player) {
+    }
+
+    /**
+     * @param player Null if not at PLAY stage yet
+     * @param future Can be null if packet was cancelled
+     */
+    default void onPacketDispatchFinish(@org.jetbrains.annotations.Nullable net.minecraft.server.level.ServerPlayer player, @org.jetbrains.annotations.Nullable io.netty.channel.ChannelFuture future) {}
+
+    default boolean hasFinishListener() {
+        return false;
+    }
+
+    default boolean isReady() {
+        return true;
+    }
+
+    @org.jetbrains.annotations.Nullable
+    default java.util.List<Packet<?>> getExtraPackets() {
+        return null;
+    }
+    // Paper end
+ }
+diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+@@ -0,0 +0,0 @@ public class ServerConnectionListener {
+     final List<Connection> connections = Collections.synchronizedList(Lists.newArrayList());
+     // Paper start - prevent blocking on adding a new connection while the server is ticking
+     private final java.util.Queue<Connection> pending = new java.util.concurrent.ConcurrentLinkedQueue<>();
+    private static final boolean disableFlushConsolidation = Boolean.getBoolean("Paper.disableFlushConsolidate"); // Paper - Optimize network
+     private final void addPending() {
+         Connection connection;
+         while ((connection = pending.poll()) != null) {
+             connections.add(connection);
+            connection.isPending = false; // Paper - Optimize network
+         }
+     }
+     // Paper end - prevent blocking on adding a new connection while the server is ticking
+@@ -0,0 +0,0 @@ public class ServerConnectionListener {
+                         ;
+                     }
+ 
+                    if (!disableFlushConsolidation) channel.pipeline().addFirst(new io.netty.handler.flush.FlushConsolidationHandler()); // Paper - Optimize network
+                     ChannelPipeline channelpipeline = channel.pipeline().addLast("timeout", new ReadTimeoutHandler(30));
+ 
+                     if (ServerConnectionListener.this.server.repliesToStatus()) {
--- a/feature-patches/1041-Allow-Saving-of-Oversized-Chunks.patch
+++ b/feature-patches/1041-Allow-Saving-of-Oversized-Chunks.patch
@ -0,0 +1,202 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 15 Feb 2019 01:08:19 -0500
+Subject: [PATCH] Allow Saving of Oversized Chunks
+
+The Minecraft World Region File format has a hard cap of 1MB per chunk.
+This is due to the fact that the header of the file format only allocates
+a single byte for sector count, meaning a maximum of 256 sectors, at 4k per sector.
+
+This limit can be reached fairly easily with books, resulting in the chunk being unable
+to save to the world. Worse off, is that nothing printed when this occured, and silently
+performed a chunk rollback on next load.
+
+This leads to security risk with duplication and is being actively exploited.
+
+This patch catches the too large scenario, falls back and moves any large Entity
+or Tile Entity into a new compound, and this compound is saved into a different file.
+
+On Chunk Load, we check for oversized status, and if so, we load the extra file and
+merge the Entities and Tile Entities from the oversized chunk back into the level to
+then be loaded as normal.
+
+Once a chunk is returned back to normal size, the oversized flag will clear, and no
+extra data file will exist.
+
+This fix maintains compatability with all existing Anvil Region Format tools as it
+does not alter the save format. They will just not know about the extra entities.
+
+This fix also maintains compatability if someone switches server jars to one without
+this fix, as the data will remain in the oversized file. Once the server returns
+to a jar with this fix, the data will be restored.
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+@@ -0,0 +0,0 @@ import java.nio.file.LinkOption;
+ import java.nio.file.Path;
+ import java.nio.file.StandardCopyOption;
+ import java.nio.file.StandardOpenOption;
+import java.util.zip.InflaterInputStream; // Paper
+ import javax.annotation.Nullable;
+ import net.minecraft.Util;
+ import net.minecraft.resources.ResourceLocation;
+ import net.minecraft.util.profiling.jfr.JvmProfiler;
+import net.minecraft.nbt.CompoundTag; // Paper
+import net.minecraft.nbt.NbtIo; // Paper
+ import net.minecraft.world.level.ChunkPos;
+ import org.slf4j.Logger;
+ 
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
+         this.usedSectors = new RegionBitmap();
+         this.info = storageKey;
+         this.path = path;
+        initOversizedState(); // Paper
+         this.version = compressionFormat;
+         if (!Files.isDirectory(directory, new LinkOption[0])) {
+             throw new IllegalArgumentException("Expected directory, got " + String.valueOf(directory.toAbsolutePath()));
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable {
+ 
+     }
+ 
+    // Paper start
+    private final byte[] oversized = new byte[1024];
+    private int oversizedCount;
+
+    private synchronized void initOversizedState() throws IOException {
+        Path metaFile = getOversizedMetaFile();
+        if (Files.exists(metaFile)) {
+            final byte[] read = java.nio.file.Files.readAllBytes(metaFile);
+            System.arraycopy(read, 0, oversized, 0, oversized.length);
+            for (byte temp : oversized) {
+                oversizedCount += temp;
+            }
+        }
+    }
+
+    private static int getChunkIndex(int x, int z) {
+        return (x & 31) + (z & 31) * 32;
+    }
+    synchronized boolean isOversized(int x, int z) {
+        return this.oversized[getChunkIndex(x, z)] == 1;
+    }
+    synchronized void setOversized(int x, int z, boolean oversized) throws IOException {
+        final int offset = getChunkIndex(x, z);
+        boolean previous = this.oversized[offset] == 1;
+        this.oversized[offset] = (byte) (oversized ? 1 : 0);
+        if (!previous && oversized) {
+            oversizedCount++;
+        } else if (!oversized && previous) {
+            oversizedCount--;
+        }
+        if (previous && !oversized) {
+            Path oversizedFile = getOversizedFile(x, z);
+            if (Files.exists(oversizedFile)) {
+                Files.delete(oversizedFile);
+            }
+        }
+        if (oversizedCount > 0) {
+            if (previous != oversized) {
+                writeOversizedMeta();
+            }
+        } else if (previous) {
+            Path oversizedMetaFile = getOversizedMetaFile();
+            if (Files.exists(oversizedMetaFile)) {
+                Files.delete(oversizedMetaFile);
+            }
+        }
+    }
+
+    private void writeOversizedMeta() throws IOException {
+        java.nio.file.Files.write(getOversizedMetaFile(), oversized);
+    }
+
+    private Path getOversizedMetaFile() {
+        return this.path.getParent().resolve(this.path.getFileName().toString().replaceAll("\\.mca$", "") + ".oversized.nbt");
+    }
+
+    private Path getOversizedFile(int x, int z) {
+        return this.path.getParent().resolve(this.path.getFileName().toString().replaceAll("\\.mca$", "") + "_oversized_" + x + "_" + z + ".nbt");
+    }
+
+    synchronized CompoundTag getOversizedData(int x, int z) throws IOException {
+        Path file = getOversizedFile(x, z);
+        try (DataInputStream out = new DataInputStream(new java.io.BufferedInputStream(new InflaterInputStream(Files.newInputStream(file))))) {
+            return NbtIo.read((java.io.DataInput) out);
+        }
+
+    }
+    // Paper end
+     private class ChunkBuffer extends ByteArrayOutputStream {
+ 
+         private final ChunkPos pos;
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+@@ -0,0 +0,0 @@ public final class RegionFileStorage implements AutoCloseable {
+         }
+     }
+ 
+    // Paper start
+    private static void printOversizedLog(String msg, Path file, int x, int z) {
+        org.apache.logging.log4j.LogManager.getLogger().fatal(msg + " (" + file.toString().replaceAll(".+[\\\\/]", "") + " - " + x + "," + z + ") Go clean it up to remove this message. /minecraft:tp " + (x<<4)+" 128 "+(z<<4) + " - DO NOT REPORT THIS TO PAPER - You may ask for help on Discord, but do not file an issue. These error messages can not be removed.");
+    }
+
+    private static CompoundTag readOversizedChunk(RegionFile regionfile, ChunkPos chunkCoordinate) throws IOException {
+        synchronized (regionfile) {
+            try (DataInputStream datainputstream = regionfile.getChunkDataInputStream(chunkCoordinate)) {
+                CompoundTag oversizedData = regionfile.getOversizedData(chunkCoordinate.x, chunkCoordinate.z);
+                CompoundTag chunk = NbtIo.read((DataInput) datainputstream);
+                if (oversizedData == null) {
+                    return chunk;
+                }
+                CompoundTag oversizedLevel = oversizedData.getCompound("Level");
+
+                mergeChunkList(chunk.getCompound("Level"), oversizedLevel, "Entities", "Entities");
+                mergeChunkList(chunk.getCompound("Level"), oversizedLevel, "TileEntities", "TileEntities");
+
+                return chunk;
+            } catch (Throwable throwable) {
+                throwable.printStackTrace();
+                throw throwable;
+            }
+        }
+    }
+
+    private static void mergeChunkList(CompoundTag level, CompoundTag oversizedLevel, String key, String oversizedKey) {
+        net.minecraft.nbt.ListTag levelList = level.getList(key, net.minecraft.nbt.Tag.TAG_COMPOUND);
+        net.minecraft.nbt.ListTag oversizedList = oversizedLevel.getList(oversizedKey, net.minecraft.nbt.Tag.TAG_COMPOUND);
+
+        if (!oversizedList.isEmpty()) {
+            levelList.addAll(oversizedList);
+            level.put(key, levelList);
+        }
+    }
+    // Paper end
+
+     @Nullable
+     public CompoundTag read(ChunkPos pos) throws IOException {
+         // CraftBukkit start - SPIGOT-5680: There's no good reason to preemptively create files on read, save that for writing
+@@ -0,0 +0,0 @@ public final class RegionFileStorage implements AutoCloseable {
+         // CraftBukkit end
+         DataInputStream datainputstream = regionfile.getChunkDataInputStream(pos);
+ 
+        // Paper start
+        if (regionfile.isOversized(pos.x, pos.z)) {
+            printOversizedLog("Loading Oversized Chunk!", regionfile.getPath(), pos.x, pos.z);
+            return readOversizedChunk(regionfile, pos);
+        }
+        // Paper end
+         CompoundTag nbttagcompound;
+         label43:
+         {
+@@ -0,0 +0,0 @@ public final class RegionFileStorage implements AutoCloseable {
+ 
+             try {
+                 NbtIo.write(nbt, (DataOutput) dataoutputstream);
+                regionfile.setOversized(pos.x, pos.z, false); // Paper - We don't do this anymore, mojang stores differently, but clear old meta flag if it exists to get rid of our own meta file once last oversized is gone
+             } catch (Throwable throwable) {
+                 if (dataoutputstream != null) {
+                     try {
--- a/feature-patches/1042-Flat-bedrock-generator-settings.patch
+++ b/feature-patches/1042-Flat-bedrock-generator-settings.patch
@ -0,0 +1,292 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Byteflux <byte@byteflux.net>
+Date: Wed, 2 Mar 2016 02:17:54 -0600
+Subject: [PATCH] Flat bedrock generator settings
+
+== AT ==
+public net.minecraft.world.level.levelgen.SurfaceRules$Condition
+public net.minecraft.world.level.levelgen.SurfaceRules$Context
+public net.minecraft.world.level.levelgen.SurfaceRules$Context blockX
+public net.minecraft.world.level.levelgen.SurfaceRules$Context blockY
+public net.minecraft.world.level.levelgen.SurfaceRules$Context blockZ
+public net.minecraft.world.level.levelgen.SurfaceRules$Context context
+public net.minecraft.world.level.levelgen.SurfaceRules$Context randomState
+public net.minecraft.world.level.levelgen.SurfaceRules$LazyYCondition
+public net.minecraft.world.level.levelgen.SurfaceRules$LazyCondition
+public net.minecraft.world.level.levelgen.SurfaceRules$VerticalGradientConditionSource
+public net.minecraft.world.level.levelgen.SurfaceRules$SurfaceRule
+
+Co-authored-by: Noah van der Aa <ndvdaa@gmail.com>
+
+diff --git a/src/main/java/io/papermc/paper/world/worldgen/OptionallyFlatBedrockConditionSource.java b/src/main/java/io/papermc/paper/world/worldgen/OptionallyFlatBedrockConditionSource.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/world/worldgen/OptionallyFlatBedrockConditionSource.java
+@@ -0,0 +0,0 @@
+package io.papermc.paper.world.worldgen;
+
+import com.mojang.serialization.Codec;
+import com.mojang.serialization.MapCodec;
+import com.mojang.serialization.codecs.RecordCodecBuilder;
+import net.minecraft.core.Registry;
+import net.minecraft.core.registries.BuiltInRegistries;
+import net.minecraft.core.registries.Registries;
+import net.minecraft.resources.ResourceKey;
+import net.minecraft.resources.ResourceLocation;
+import net.minecraft.util.KeyDispatchDataCodec;
+import net.minecraft.util.Mth;
+import net.minecraft.util.RandomSource;
+import net.minecraft.world.level.levelgen.PositionalRandomFactory;
+import net.minecraft.world.level.levelgen.SurfaceRules;
+import net.minecraft.world.level.levelgen.VerticalAnchor;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+
+// Modelled off of SurfaceRules$VerticalGradientConditionSource
+@DefaultQualifier(NonNull.class)
+public record OptionallyFlatBedrockConditionSource(ResourceLocation randomName, VerticalAnchor trueAtAndBelow, VerticalAnchor falseAtAndAbove, boolean isRoof) implements SurfaceRules.ConditionSource {
+
+    private static final ResourceKey<MapCodec<? extends SurfaceRules.ConditionSource>> CODEC_RESOURCE_KEY = ResourceKey.create(
+        Registries.MATERIAL_CONDITION,
+        ResourceLocation.fromNamespaceAndPath(ResourceLocation.PAPER_NAMESPACE, "optionally_flat_bedrock_condition_source")
+    );
+    private static final KeyDispatchDataCodec<OptionallyFlatBedrockConditionSource> CODEC = KeyDispatchDataCodec.of(RecordCodecBuilder.mapCodec((instance) -> {
+        return instance.group(
+            ResourceLocation.CODEC.fieldOf("random_name").forGetter(OptionallyFlatBedrockConditionSource::randomName),
+            VerticalAnchor.CODEC.fieldOf("true_at_and_below").forGetter(OptionallyFlatBedrockConditionSource::trueAtAndBelow),
+            VerticalAnchor.CODEC.fieldOf("false_at_and_above").forGetter(OptionallyFlatBedrockConditionSource::falseAtAndAbove),
+            Codec.BOOL.fieldOf("is_roof").forGetter(OptionallyFlatBedrockConditionSource::isRoof)
+        ).apply(instance, OptionallyFlatBedrockConditionSource::new);
+    }));
+
+    public static void bootstrap() {
+        Registry.register(BuiltInRegistries.MATERIAL_CONDITION, CODEC_RESOURCE_KEY, CODEC.codec());
+    }
+
+    @Override
+    public KeyDispatchDataCodec<? extends SurfaceRules.ConditionSource> codec() {
+        return CODEC;
+    }
+
+    @Override
+    public SurfaceRules.Condition apply(final SurfaceRules.Context context) {
+        boolean hasFlatBedrock = context.context.getWorld().paperConfig().environment.generateFlatBedrock;
+        int tempTrueAtAndBelowY = this.trueAtAndBelow().resolveY(context.context);
+        int tempFalseAtAndAboveY = this.falseAtAndAbove().resolveY(context.context);
+
+        int flatYLevel = this.isRoof ? Math.max(tempFalseAtAndAboveY, tempTrueAtAndBelowY) - 1 : Math.min(tempFalseAtAndAboveY, tempTrueAtAndBelowY);
+        final int trueAtAndBelowY = hasFlatBedrock ? flatYLevel : tempTrueAtAndBelowY;
+        final int falseAtAndAboveY = hasFlatBedrock ? flatYLevel : tempFalseAtAndAboveY;
+
+        final PositionalRandomFactory positionalRandomFactory = context.randomState.getOrCreateRandomFactory(this.randomName());
+
+        class VerticalGradientCondition extends SurfaceRules.LazyYCondition {
+            VerticalGradientCondition(SurfaceRules.Context context) {
+                super(context);
+            }
+
+            @Override
+            protected boolean compute() {
+                int blockY = this.context.blockY;
+                if (blockY <= trueAtAndBelowY) {
+                    return true;
+                } else if (blockY >= falseAtAndAboveY) {
+                    return false;
+                } else {
+                    double d = Mth.map(blockY, trueAtAndBelowY, falseAtAndAboveY, 1.0D, 0.0D);
+                    RandomSource randomSource = positionalRandomFactory.at(this.context.blockX, blockY, this.context.blockZ);
+                    return (double)randomSource.nextFloat() < d;
+                }
+            }
+        }
+
+        return new VerticalGradientCondition(context);
+    }
+}
+diff --git a/src/main/java/net/minecraft/server/Bootstrap.java b/src/main/java/net/minecraft/server/Bootstrap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/Bootstrap.java
+++ b/src/main/java/net/minecraft/server/Bootstrap.java
+@@ -0,0 +0,0 @@ public class Bootstrap {
+                     CauldronInteraction.bootStrap();
+                     // Paper start
+                     BuiltInRegistries.bootStrap(() -> {
+                        io.papermc.paper.world.worldgen.OptionallyFlatBedrockConditionSource.bootstrap(); // Paper - Flat bedrock generator settings
+                     });
+                     // Paper end
+                     CreativeModeTabs.validate();
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/NoiseBasedChunkGenerator.java
+@@ -0,0 +0,0 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator {
+     @Override
+     public void buildSurface(WorldGenRegion region, StructureManager structures, RandomState noiseConfig, ChunkAccess chunk) {
+         if (!SharedConstants.debugVoidTerrain(chunk.getPos())) {
+-            WorldGenerationContext worldgenerationcontext = new WorldGenerationContext(this, region);
+            WorldGenerationContext worldgenerationcontext = new WorldGenerationContext(this, region, region.getMinecraftWorld()); // Paper - Flat bedrock generator settings
+ 
+             this.buildSurface(chunk, worldgenerationcontext, noiseConfig, structures, region.getBiomeManager(), region.registryAccess().lookupOrThrow(Registries.BIOME), Blender.of(region));
+         }
+@@ -0,0 +0,0 @@ public final class NoiseBasedChunkGenerator extends ChunkGenerator {
+             return this.createNoiseChunk(ichunkaccess1, structureAccessor, Blender.of(chunkRegion), noiseConfig);
+         });
+         Aquifer aquifer = noisechunk.aquifer();
+-        CarvingContext carvingcontext = new CarvingContext(this, chunkRegion.registryAccess(), chunk.getHeightAccessorForGeneration(), noisechunk, noiseConfig, ((NoiseGeneratorSettings) this.settings.value()).surfaceRule());
+        CarvingContext carvingcontext = new CarvingContext(this, chunkRegion.registryAccess(), chunk.getHeightAccessorForGeneration(), noisechunk, noiseConfig, ((NoiseGeneratorSettings) this.settings.value()).surfaceRule(), chunkRegion.getMinecraftWorld()); // Paper - Flat bedrock generator settings
+         CarvingMask carvingmask = ((ProtoChunk) chunk).getOrCreateCarvingMask();
+ 
+         for (int j = -8; j <= 8; ++j) {
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java b/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/WorldGenerationContext.java
+@@ -0,0 +0,0 @@ import net.minecraft.world.level.chunk.ChunkGenerator;
+ public class WorldGenerationContext {
+     private final int minY;
+     private final int height;
+    private final @javax.annotation.Nullable net.minecraft.world.level.Level level; // Paper - Flat bedrock generator settings
+ 
+-    public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world) {
+    public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world) { this(generator, world, null); } // Paper - Flat bedrock generator settings
+    public WorldGenerationContext(ChunkGenerator generator, LevelHeightAccessor world, @org.jetbrains.annotations.Nullable net.minecraft.world.level.Level level) { // Paper - Flat bedrock generator settings
+         this.minY = Math.max(world.getMinY(), generator.getMinY());
+         this.height = Math.min(world.getHeight(), generator.getGenDepth());
+        this.level = level; // Paper - Flat bedrock generator settings
+     }
+ 
+     public int getMinGenY() {
+@@ -0,0 +0,0 @@ public class WorldGenerationContext {
+     public int getGenDepth() {
+         return this.height;
+     }
+
+    // Paper start - Flat bedrock generator settings
+    public net.minecraft.world.level.Level getWorld() {
+        if (this.level == null) {
+            throw new NullPointerException("WorldGenerationContext was initialized without a Level, but WorldGenerationContext#getWorld was called");
+        }
+        return this.level;
+    }
+    // Paper end - Flat bedrock generator settings
+ }
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java b/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/carver/CarvingContext.java
+@@ -0,0 +0,0 @@ public class CarvingContext extends WorldGenerationContext {
+         LevelHeightAccessor heightLimitView,
+         NoiseChunk chunkNoiseSampler,
+         RandomState noiseConfig,
+-        SurfaceRules.RuleSource materialRule
+        SurfaceRules.RuleSource materialRule, @javax.annotation.Nullable net.minecraft.world.level.Level level  // Paper - Flat bedrock generator settings
+     ) {
+-        super(noiseChunkGenerator, heightLimitView);
+        super(noiseChunkGenerator, heightLimitView, level); // Paper - Flat bedrock generator settings
+         this.registryAccess = registryManager;
+         this.noiseChunk = chunkNoiseSampler;
+         this.randomState = noiseConfig;
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java b/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/placement/PlacementContext.java
+@@ -0,0 +0,0 @@ public class PlacementContext extends WorldGenerationContext {
+     private final Optional<PlacedFeature> topFeature;
+ 
+     public PlacementContext(WorldGenLevel world, ChunkGenerator generator, Optional<PlacedFeature> placedFeature) {
+-        super(generator, world);
+        super(generator, world, world.getLevel()); // Paper - Flat bedrock generator settings
+         this.level = world;
+         this.generator = generator;
+         this.topFeature = placedFeature;
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json b/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json
+++ b/src/main/resources/data/minecraft/worldgen/noise_settings/amplified.json
+@@ -0,0 +0,0 @@
+       {
+         "type": "minecraft:condition",
+         "if_true": {
+-          "type": "minecraft:vertical_gradient",
+          "type": "paper:optionally_flat_bedrock_condition_source",
+          "is_roof": false,
+           "false_at_and_above": {
+             "above_bottom": 5
+           },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json b/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json
+++ b/src/main/resources/data/minecraft/worldgen/noise_settings/caves.json
+@@ -0,0 +0,0 @@
+         "if_true": {
+           "type": "minecraft:not",
+           "invert": {
+-            "type": "minecraft:vertical_gradient",
+            "type": "paper:optionally_flat_bedrock_condition_source",
+            "is_roof": true,
+             "false_at_and_above": {
+               "below_top": 0
+             },
+@@ -0,0 +0,0 @@
+       {
+         "type": "minecraft:condition",
+         "if_true": {
+-          "type": "minecraft:vertical_gradient",
+          "type": "paper:optionally_flat_bedrock_condition_source",
+          "is_roof": false,
+           "false_at_and_above": {
+             "above_bottom": 5
+           },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json b/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json
+++ b/src/main/resources/data/minecraft/worldgen/noise_settings/large_biomes.json
+@@ -0,0 +0,0 @@
+       {
+         "type": "minecraft:condition",
+         "if_true": {
+-          "type": "minecraft:vertical_gradient",
+          "type": "paper:optionally_flat_bedrock_condition_source",
+          "is_roof": false,
+           "false_at_and_above": {
+             "above_bottom": 5
+           },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json b/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json
+++ b/src/main/resources/data/minecraft/worldgen/noise_settings/nether.json
+@@ -0,0 +0,0 @@
+       {
+         "type": "minecraft:condition",
+         "if_true": {
+-          "type": "minecraft:vertical_gradient",
+          "type": "paper:optionally_flat_bedrock_condition_source",
+          "is_roof": false,
+           "false_at_and_above": {
+             "above_bottom": 5
+           },
+@@ -0,0 +0,0 @@
+         "if_true": {
+           "type": "minecraft:not",
+           "invert": {
+-            "type": "minecraft:vertical_gradient",
+            "type": "paper:optionally_flat_bedrock_condition_source",
+            "is_roof": true,
+             "false_at_and_above": {
+               "below_top": 0
+             },
+diff --git a/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json b/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json
+++ b/src/main/resources/data/minecraft/worldgen/noise_settings/overworld.json
+@@ -0,0 +0,0 @@
+       {
+         "type": "minecraft:condition",
+         "if_true": {
+-          "type": "minecraft:vertical_gradient",
+          "type": "paper:optionally_flat_bedrock_condition_source",
+          "is_roof": false,
+           "false_at_and_above": {
+             "above_bottom": 5
+           },
--- a/feature-patches/1043-Entity-Activation-Range-2.0.patch
+++ b/feature-patches/1043-Entity-Activation-Range-2.0.patch
@ -0,0 +1,775 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Fri, 13 May 2016 01:38:06 -0400
+Subject: [PATCH] Entity Activation Range 2.0
+
+Optimizes performance of Activation Range
+
+Adds many new configurations and a new wake up inactive system
+
+Fixes and adds new Immunities to improve gameplay behavior
+
+Adds water Mobs to activation range config and nerfs fish
+Adds flying monsters to control ghast and phantoms
+Adds villagers as separate config
+
+== AT ==
+public net.minecraft.world.entity.Entity isInsidePortal
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+ 
+     public void tickNonPassenger(Entity entity) {
+         // Spigot start
+-        if (!org.spigotmc.ActivationRange.checkIfActive(entity)) {
+        /*if (!org.spigotmc.ActivationRange.checkIfActive(entity)) { // Paper - comment out EAR 2
+             entity.tickCount++;
+             entity.inactiveTick();
+             return;
+-        }
+        }*/ // Paper - comment out EAR 2
+         // Spigot end
+         entity.setOldPosAndRot();
+         ProfilerFiller gameprofilerfiller = Profiler.get();
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+             return BuiltInRegistries.ENTITY_TYPE.getKey(entity.getType()).toString();
+         });
+         gameprofilerfiller.incrementCounter("tickNonPassenger");
+        final boolean isActive = org.spigotmc.ActivationRange.checkIfActive(entity); // Paper - EAR 2
+        if (isActive) { // Paper - EAR 2
+         entity.tick();
+         entity.postTick(); // CraftBukkit
+        } else { entity.inactiveTick(); } // Paper - EAR 2
+         gameprofilerfiller.pop();
+         Iterator iterator = entity.getPassengers().iterator();
+ 
+         while (iterator.hasNext()) {
+             Entity entity1 = (Entity) iterator.next();
+ 
+-            this.tickPassenger(entity, entity1);
+            this.tickPassenger(entity, entity1, isActive); // Paper - EAR 2
+         }
+ 
+     }
+ 
+-    private void tickPassenger(Entity vehicle, Entity passenger) {
+    private void tickPassenger(Entity vehicle, Entity passenger, boolean isActive) { // Paper - EAR 2
+         if (!passenger.isRemoved() && passenger.getVehicle() == vehicle) {
+             if (passenger instanceof Player || this.entityTickList.contains(passenger)) {
+                 passenger.setOldPosAndRot();
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+                     return BuiltInRegistries.ENTITY_TYPE.getKey(passenger.getType()).toString();
+                 });
+                 gameprofilerfiller.incrementCounter("tickPassenger");
+                // Paper start - EAR 2
+                if (isActive) {
+                 passenger.rideTick();
+                 passenger.postTick(); // CraftBukkit
+                } else {
+                passenger.setDeltaMovement(Vec3.ZERO);
+                passenger.inactiveTick();
+                // copied from inside of if (isPassenger()) of passengerTick, but that ifPassenger is unnecessary
+                vehicle.positionRider(passenger);
+                }
+                // Paper end - EAR 2
+                 gameprofilerfiller.pop();
+                 Iterator iterator = passenger.getPassengers().iterator();
+ 
+                 while (iterator.hasNext()) {
+                     Entity entity2 = (Entity) iterator.next();
+ 
+-                    this.tickPassenger(passenger, entity2);
+                    this.tickPassenger(passenger, entity2, isActive); // Paper - EAR 2
+                 }
+ 
+             }
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+     // Spigot end
+     protected int numCollisions = 0; // Paper - Cap entity collisions
+     public boolean fromNetherPortal; // Paper - Add option to nerf pigmen from nether portals
+    public long activatedImmunityTick = Integer.MIN_VALUE; // Paper - EAR
+    public boolean isTemporarilyActive; // Paper - EAR
+     public boolean spawnedViaMobSpawner; // Paper - Yes this name is similar to above, upstream took the better one
+     // Paper start - Entity origin API
+     @javax.annotation.Nullable
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+         } else {
+             this.wasOnFire = this.isOnFire();
+             if (type == MoverType.PISTON) {
+                this.activatedTick = Math.max(this.activatedTick, MinecraftServer.currentTick + 20); // Paper - EAR 2
+                this.activatedImmunityTick = Math.max(this.activatedImmunityTick, MinecraftServer.currentTick + 20);   // Paper - EAR 2
+                 movement = this.limitPistonMovement(movement);
+                 if (movement.equals(Vec3.ZERO)) {
+                     return;
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+                 this.stuckSpeedMultiplier = Vec3.ZERO;
+                 this.setDeltaMovement(Vec3.ZERO);
+             }
+            // Paper start - ignore movement changes while inactive.
+            if (isTemporarilyActive && !(this instanceof ItemEntity) && movement == getDeltaMovement() && type == MoverType.SELF) {
+                setDeltaMovement(Vec3.ZERO);
+                gameprofilerfiller.pop();
+                return;
+            }
+            // Paper end
+ 
+             movement = this.maybeBackOffFromEdge(movement, type);
+             Vec3 vec3d1 = this.collide(movement);
+diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
+@@ -0,0 +0,0 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Leashab
+         return this.lookControl;
+     }
+ 
+    // Paper start
+    @Override
+    public void inactiveTick() {
+        super.inactiveTick();
+        if (this.goalSelector.inactiveTick()) {
+            this.goalSelector.tick();
+        }
+        if (this.targetSelector.inactiveTick()) {
+            this.targetSelector.tick();
+        }
+    }
+    // Paper end
+
+     public MoveControl getMoveControl() {
+         Entity entity = this.getControlledVehicle();
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/PathfinderMob.java b/src/main/java/net/minecraft/world/entity/PathfinderMob.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/PathfinderMob.java
+++ b/src/main/java/net/minecraft/world/entity/PathfinderMob.java
+@@ -0,0 +0,0 @@ public abstract class PathfinderMob extends Mob {
+         super(type, world);
+     }
+ 
+    public BlockPos movingTarget; public BlockPos getMovingTarget() { return movingTarget; } // Paper
+
+     public float getWalkTargetValue(BlockPos pos) {
+         return this.getWalkTargetValue(pos, this.level());
+     }
+diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+@@ -0,0 +0,0 @@ public class GoalSelector {
+     private final Map<Goal.Flag, WrappedGoal> lockedFlags = new EnumMap<>(Goal.Flag.class);
+     private final Set<WrappedGoal> availableGoals = new ObjectLinkedOpenHashSet<>();
+     private final EnumSet<Goal.Flag> disabledFlags = EnumSet.noneOf(Goal.Flag.class);
+    private int curRate; // Paper - EAR 2
+ 
+     public void addGoal(int priority, Goal goal) {
+         this.availableGoals.add(new WrappedGoal(priority, goal));
+@@ -0,0 +0,0 @@ public class GoalSelector {
+         this.availableGoals.removeIf(goal -> predicate.test(goal.getGoal()));
+     }
+ 
+    // Paper start - EAR 2
+    public boolean inactiveTick() {
+        this.curRate++;
+        return this.curRate % 3 == 0; // TODO newGoalRate was already unused in 1.20.4, check if this is correct
+    }
+    public boolean hasTasks() {
+        for (WrappedGoal task : this.availableGoals) {
+            if (task.isRunning()) {
+                return true;
+            }
+        }
+        return false;
+    }
+    // Paper end - EAR 2
+     public void removeGoal(Goal goal) {
+         for (WrappedGoal wrappedGoal : this.availableGoals) {
+             if (wrappedGoal.getGoal() == goal && wrappedGoal.isRunning()) {
+diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/MoveToBlockGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/MoveToBlockGoal.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/goal/MoveToBlockGoal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/MoveToBlockGoal.java
+@@ -0,0 +0,0 @@ public abstract class MoveToBlockGoal extends Goal {
+     public MoveToBlockGoal(PathfinderMob mob, double speed, int range) {
+         this(mob, speed, range, 1);
+     }
+    // Paper start - activation range improvements
+    @Override
+    public void stop() {
+        super.stop();
+        this.blockPos = BlockPos.ZERO;
+        this.mob.movingTarget = null;
+    }
+    // Paper end
+ 
+     public MoveToBlockGoal(PathfinderMob mob, double speed, int range, int maxYDifference) {
+         this.mob = mob;
+@@ -0,0 +0,0 @@ public abstract class MoveToBlockGoal extends Goal {
+                         mutableBlockPos.setWithOffset(blockPos, m, k - 1, n);
+                         if (this.mob.isWithinRestriction(mutableBlockPos) && this.isValidTarget(this.mob.level(), mutableBlockPos)) {
+                             this.blockPos = mutableBlockPos;
+                            this.mob.movingTarget = mutableBlockPos == BlockPos.ZERO ? null : mutableBlockPos.immutable(); // Paper
+                             return true;
+                         }
+                     }
+diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
+@@ -0,0 +0,0 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+     @Override
+     public void inactiveTick() {
+         // SPIGOT-3874, SPIGOT-3894, SPIGOT-3846, SPIGOT-5286 :(
+-        if (this.level().spigotConfig.tickInactiveVillagers && this.isEffectiveAi()) {
+-            this.customServerAiStep((ServerLevel) this.level());
+        // Paper start
+        if (this.getUnhappyCounter() > 0) {
+            this.setUnhappyCounter(this.getUnhappyCounter() - 1);
+        }
+        if (this.isEffectiveAi()) {
+            if (this.level().spigotConfig.tickInactiveVillagers) {
+                this.customServerAiStep(this.level().getMinecraftWorld());
+            } else {
+                this.customServerAiStep(this.level().getMinecraftWorld(), true);
+            }
+         }
+        maybeDecayGossip();
+        // Paper end
+         super.inactiveTick();
+     }
+     // Spigot End
+ 
+     @Override
+     protected void customServerAiStep(ServerLevel world) {
+        // Paper start - EAR 2
+        this.customServerAiStep(world, false);
+    }
+    protected void customServerAiStep(ServerLevel world, final boolean inactive) {
+        // Paper end - EAR 2
+         ProfilerFiller gameprofilerfiller = Profiler.get();
+ 
+         gameprofilerfiller.push("villagerBrain");
+-        this.getBrain().tick(world, this);
+        if (!inactive) this.getBrain().tick(world, this);
+         gameprofilerfiller.pop();
+         if (this.assignProfessionWhenSpawned) {
+             this.assignProfessionWhenSpawned = false;
+@@ -0,0 +0,0 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+             this.lastTradedPlayer = null;
+         }
+ 
+-        if (!this.isNoAi() && this.random.nextInt(100) == 0) {
+        if (!inactive && !this.isNoAi() && this.random.nextInt(100) == 0) { // Paper - EAR 2
+             Raid raid = world.getRaidAt(this.blockPosition());
+ 
+             if (raid != null && raid.isActive() && !raid.isOver()) {
+@@ -0,0 +0,0 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
+         if (this.getVillagerData().getProfession() == VillagerProfession.NONE && this.isTrading()) {
+             this.stopTrading();
+         }
+        if (inactive) return; // Paper - EAR 2
+ 
+         super.customServerAiStep(world);
+     }
+diff --git a/src/main/java/net/minecraft/world/entity/vehicle/MinecartHopper.java b/src/main/java/net/minecraft/world/entity/vehicle/MinecartHopper.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/vehicle/MinecartHopper.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/MinecartHopper.java
+@@ -0,0 +0,0 @@ public class MinecartHopper extends AbstractMinecartContainer implements Hopper
+         if (bl != this.isEnabled()) {
+             this.setEnabled(bl);
+         }
+        this.immunize();  // Paper
+     }
+ 
+     public boolean isEnabled() {
+@@ -0,0 +0,0 @@ public class MinecartHopper extends AbstractMinecartContainer implements Hopper
+ 
+     public boolean suckInItems() {
+         if (HopperBlockEntity.suckInItems(this.level(), this)) {
+            this.immunize();  // Paper
+             return true;
+         } else {
+             for (ItemEntity itemEntity : this.level()
+                 .getEntitiesOfClass(ItemEntity.class, this.getBoundingBox().inflate(0.25, 0.0, 0.25), EntitySelector.ENTITY_STILL_ALIVE)) {
+                 if (HopperBlockEntity.addItem(this, itemEntity)) {
+                    this.immunize();  // Paper
+                     return true;
+                 }
+             }
+@@ -0,0 +0,0 @@ public class MinecartHopper extends AbstractMinecartContainer implements Hopper
+     public AbstractContainerMenu createMenu(int syncId, Inventory playerInventory) {
+         return new HopperMenu(syncId, playerInventory, this);
+     }
+
+    // Paper start
+    public void immunize() {
+        this.activatedImmunityTick = Math.max(this.activatedImmunityTick, net.minecraft.server.MinecraftServer.currentTick + 20);
+    }
+    // Paper end
+
+ }
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
+     public Map<BlockPos, BlockEntity> capturedTileEntities = new java.util.LinkedHashMap<>(); // Paper - Retain block place order when capturing blockstates
+     public List<ItemEntity> captureDrops;
+     public final it.unimi.dsi.fastutil.objects.Object2LongOpenHashMap<SpawnCategory> ticksPerSpawnCategory = new it.unimi.dsi.fastutil.objects.Object2LongOpenHashMap<>();
+    // Paper start
+    public int wakeupInactiveRemainingAnimals;
+    public int wakeupInactiveRemainingFlying;
+    public int wakeupInactiveRemainingMonsters;
+    public int wakeupInactiveRemainingVillagers;
+    // Paper end
+     public boolean populating;
+     public final org.spigotmc.SpigotWorldConfig spigotConfig; // Spigot
+     // Paper start - add paper world config
+diff --git a/src/main/java/net/minecraft/world/level/block/piston/PistonMovingBlockEntity.java b/src/main/java/net/minecraft/world/level/block/piston/PistonMovingBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/piston/PistonMovingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/piston/PistonMovingBlockEntity.java
+@@ -0,0 +0,0 @@ public class PistonMovingBlockEntity extends BlockEntity {
+                                 }
+ 
+                                 entity.setDeltaMovement(e, g, h);
+                                // Paper - EAR items stuck in in slime pushed by a piston
+                                entity.activatedTick = Math.max(entity.activatedTick, net.minecraft.server.MinecraftServer.currentTick + 10);
+                                entity.activatedImmunityTick = Math.max(entity.activatedImmunityTick, net.minecraft.server.MinecraftServer.currentTick + 10);
+                                // Paper end
+                                 break;
+                             }
+                         }
+diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
+@@ -0,0 +0,0 @@
+ package org.spigotmc;
+ 
+import net.minecraft.core.BlockPos;
+ import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.level.ServerChunkCache;
+ import net.minecraft.world.entity.Entity;
+ import net.minecraft.world.entity.ExperienceOrb;
+import net.minecraft.world.entity.FlyingMob;
+ import net.minecraft.world.entity.LightningBolt;
+ import net.minecraft.world.entity.LivingEntity;
+import net.minecraft.world.entity.Mob;
+ import net.minecraft.world.entity.PathfinderMob;
+import net.minecraft.world.entity.ai.Brain;
+ import net.minecraft.world.entity.ambient.AmbientCreature;
+ import net.minecraft.world.entity.animal.Animal;
+import net.minecraft.world.entity.animal.Bee;
+ import net.minecraft.world.entity.animal.Sheep;
+import net.minecraft.world.entity.animal.WaterAnimal;
+import net.minecraft.world.entity.animal.horse.Llama;
+ import net.minecraft.world.entity.boss.EnderDragonPart;
+ import net.minecraft.world.entity.boss.enderdragon.EndCrystal;
+ import net.minecraft.world.entity.boss.enderdragon.EnderDragon;
+@@ -0,0 +0,0 @@ import net.minecraft.world.entity.boss.wither.WitherBoss;
+ import net.minecraft.world.entity.item.ItemEntity;
+ import net.minecraft.world.entity.item.PrimedTnt;
+ import net.minecraft.world.entity.monster.Creeper;
+-import net.minecraft.world.entity.monster.Monster;
+-import net.minecraft.world.entity.monster.Slime;
+import net.minecraft.world.entity.monster.Enemy;
+import net.minecraft.world.entity.monster.Pillager;
+ import net.minecraft.world.entity.npc.Villager;
+ import net.minecraft.world.entity.player.Player;
+ import net.minecraft.world.entity.projectile.AbstractArrow;
+ import net.minecraft.world.entity.projectile.AbstractHurtingProjectile;
+import net.minecraft.world.entity.projectile.EyeOfEnder;
+ import net.minecraft.world.entity.projectile.FireworkRocketEntity;
+ import net.minecraft.world.entity.projectile.ThrowableProjectile;
+ import net.minecraft.world.entity.projectile.ThrownTrident;
+@@ -0,0 +0,0 @@ public class ActivationRange
+ 
+         AABB boundingBox = new AABB( 0, 0, 0, 0, 0, 0 );
+     }
+    // Paper start
+
+    static net.minecraft.world.entity.schedule.Activity[] VILLAGER_PANIC_IMMUNITIES = {
+        net.minecraft.world.entity.schedule.Activity.HIDE,
+        net.minecraft.world.entity.schedule.Activity.PRE_RAID,
+        net.minecraft.world.entity.schedule.Activity.RAID,
+        net.minecraft.world.entity.schedule.Activity.PANIC
+    };
+
+    private static int checkInactiveWakeup(Entity entity) {
+        Level world = entity.level();
+        SpigotWorldConfig config = world.spigotConfig;
+        long inactiveFor = MinecraftServer.currentTick - entity.activatedTick;
+        if (entity.activationType == ActivationType.VILLAGER) {
+            if (inactiveFor > config.wakeUpInactiveVillagersEvery && world.wakeupInactiveRemainingVillagers > 0) {
+                world.wakeupInactiveRemainingVillagers--;
+                return config.wakeUpInactiveVillagersFor;
+            }
+        } else if (entity.activationType == ActivationType.ANIMAL) {
+            if (inactiveFor > config.wakeUpInactiveAnimalsEvery && world.wakeupInactiveRemainingAnimals > 0) {
+                world.wakeupInactiveRemainingAnimals--;
+                return config.wakeUpInactiveAnimalsFor;
+            }
+        } else if (entity.activationType == ActivationType.FLYING_MONSTER) {
+            if (inactiveFor > config.wakeUpInactiveFlyingEvery && world.wakeupInactiveRemainingFlying > 0) {
+                world.wakeupInactiveRemainingFlying--;
+                return config.wakeUpInactiveFlyingFor;
+            }
+        } else if (entity.activationType == ActivationType.MONSTER || entity.activationType == ActivationType.RAIDER) {
+            if (inactiveFor > config.wakeUpInactiveMonstersEvery && world.wakeupInactiveRemainingMonsters > 0) {
+                world.wakeupInactiveRemainingMonsters--;
+                return config.wakeUpInactiveMonstersFor;
+            }
+        }
+        return -1;
+    }
+    // Paper end
+ 
+     static AABB maxBB = new AABB( 0, 0, 0, 0, 0, 0 );
+ 
+@@ -0,0 +0,0 @@ public class ActivationRange
+      */
+     public static ActivationType initializeEntityActivationType(Entity entity)
+     {
+        if (entity instanceof WaterAnimal) { return ActivationType.WATER; } // Paper
+        else if (entity instanceof Villager) { return ActivationType.VILLAGER; } // Paper
+        else if (entity instanceof FlyingMob && entity instanceof Enemy) { return ActivationType.FLYING_MONSTER; } // Paper - doing & Monster incase Flying no longer includes monster in future
+         if ( entity instanceof Raider )
+         {
+             return ActivationType.RAIDER;
+-        } else if ( entity instanceof Monster || entity instanceof Slime )
+        } else if ( entity instanceof Enemy ) // Paper - correct monster check
+         {
+             return ActivationType.MONSTER;
+         } else if ( entity instanceof PathfinderMob || entity instanceof AmbientCreature )
+@@ -0,0 +0,0 @@ public class ActivationRange
+      */
+     public static boolean initializeEntityActivationState(Entity entity, SpigotWorldConfig config)
+     {
+-        if ( ( entity.activationType == ActivationType.MISC && config.miscActivationRange == 0 )
+-                || ( entity.activationType == ActivationType.RAIDER && config.raiderActivationRange == 0 )
+-                || ( entity.activationType == ActivationType.ANIMAL && config.animalActivationRange == 0 )
+-                || ( entity.activationType == ActivationType.MONSTER && config.monsterActivationRange == 0 )
+        if ( ( entity.activationType == ActivationType.MISC && config.miscActivationRange <= 0 )
+                || ( entity.activationType == ActivationType.RAIDER && config.raiderActivationRange <= 0 )
+                || ( entity.activationType == ActivationType.ANIMAL && config.animalActivationRange <= 0 )
+                || ( entity.activationType == ActivationType.MONSTER && config.monsterActivationRange <= 0 )
+                || ( entity.activationType == ActivationType.VILLAGER && config.villagerActivationRange <= 0 ) // Paper
+                || ( entity.activationType == ActivationType.WATER && config.waterActivationRange <= 0 ) // Paper
+                || ( entity.activationType == ActivationType.FLYING_MONSTER && config.flyingMonsterActivationRange <= 0 ) // Paper
+                || entity instanceof EyeOfEnder // Paper
+                 || entity instanceof Player
+                 || entity instanceof ThrowableProjectile
+                 || entity instanceof EnderDragon
+@@ -0,0 +0,0 @@ public class ActivationRange
+         final int raiderActivationRange = world.spigotConfig.raiderActivationRange;
+         final int animalActivationRange = world.spigotConfig.animalActivationRange;
+         final int monsterActivationRange = world.spigotConfig.monsterActivationRange;
+        // Paper start
+        final int waterActivationRange = world.spigotConfig.waterActivationRange;
+        final int flyingActivationRange = world.spigotConfig.flyingMonsterActivationRange;
+        final int villagerActivationRange = world.spigotConfig.villagerActivationRange;
+        world.wakeupInactiveRemainingAnimals = Math.min(world.wakeupInactiveRemainingAnimals + 1, world.spigotConfig.wakeUpInactiveAnimals);
+        world.wakeupInactiveRemainingVillagers = Math.min(world.wakeupInactiveRemainingVillagers + 1, world.spigotConfig.wakeUpInactiveVillagers);
+        world.wakeupInactiveRemainingMonsters = Math.min(world.wakeupInactiveRemainingMonsters + 1, world.spigotConfig.wakeUpInactiveMonsters);
+        world.wakeupInactiveRemainingFlying = Math.min(world.wakeupInactiveRemainingFlying + 1, world.spigotConfig.wakeUpInactiveFlying);
+        final ServerChunkCache chunkProvider = (ServerChunkCache) world.getChunkSource();
+        // Paper end
+ 
+         int maxRange = Math.max( monsterActivationRange, animalActivationRange );
+         maxRange = Math.max( maxRange, raiderActivationRange );
+         maxRange = Math.max( maxRange, miscActivationRange );
+        // Paper start
+        maxRange = Math.max( maxRange, flyingActivationRange );
+        maxRange = Math.max( maxRange, waterActivationRange );
+        maxRange = Math.max( maxRange, villagerActivationRange );
+        // Paper end
+         maxRange = Math.min( ( world.spigotConfig.simulationDistance << 4 ) - 8, maxRange );
+ 
+         for ( Player player : world.players() )
+@@ -0,0 +0,0 @@ public class ActivationRange
+                 continue;
+             }
+ 
+-            ActivationRange.maxBB = player.getBoundingBox().inflate( maxRange, 256, maxRange );
+-            ActivationType.MISC.boundingBox = player.getBoundingBox().inflate( miscActivationRange, 256, miscActivationRange );
+-            ActivationType.RAIDER.boundingBox = player.getBoundingBox().inflate( raiderActivationRange, 256, raiderActivationRange );
+-            ActivationType.ANIMAL.boundingBox = player.getBoundingBox().inflate( animalActivationRange, 256, animalActivationRange );
+-            ActivationType.MONSTER.boundingBox = player.getBoundingBox().inflate( monsterActivationRange, 256, monsterActivationRange );
+            // Paper start
+            int worldHeight = world.getHeight();
+            ActivationRange.maxBB = player.getBoundingBox().inflate( maxRange, worldHeight, maxRange );
+            ActivationType.MISC.boundingBox = player.getBoundingBox().inflate( miscActivationRange, worldHeight, miscActivationRange );
+            ActivationType.RAIDER.boundingBox = player.getBoundingBox().inflate( raiderActivationRange, worldHeight, raiderActivationRange );
+            ActivationType.ANIMAL.boundingBox = player.getBoundingBox().inflate( animalActivationRange, worldHeight, animalActivationRange );
+            ActivationType.MONSTER.boundingBox = player.getBoundingBox().inflate( monsterActivationRange, worldHeight, monsterActivationRange );
+            ActivationType.WATER.boundingBox = player.getBoundingBox().inflate( waterActivationRange, worldHeight, waterActivationRange );
+            ActivationType.FLYING_MONSTER.boundingBox = player.getBoundingBox().inflate( flyingActivationRange, worldHeight, flyingActivationRange );
+            ActivationType.VILLAGER.boundingBox = player.getBoundingBox().inflate( villagerActivationRange, worldHeight, villagerActivationRange );
+            // Paper end
+ 
+-            world.getEntities().get(ActivationRange.maxBB, ActivationRange::activateEntity);
+            // Paper start
+            java.util.List<Entity> entities = world.getEntities((Entity)null, ActivationRange.maxBB, null);
+            boolean tickMarkers = world.paperConfig().entities.markers.tick; // Paper - Configurable marker ticking
+            for (Entity entity : entities) {
+                // Paper start - Configurable marker ticking
+                if (!tickMarkers && entity instanceof net.minecraft.world.entity.Marker) {
+                    continue;
+                }
+                // Paper end - Configurable marker ticking
+                ActivationRange.activateEntity(entity);
+            }
+            // Paper end
+         }
+     }
+ 
+@@ -0,0 +0,0 @@ public class ActivationRange
+      * @param entity
+      * @return
+      */
+-    public static boolean checkEntityImmunities(Entity entity)
+    public static int checkEntityImmunities(Entity entity) // Paper - return # of ticks to get immunity
+     {
+        // Paper start
+        SpigotWorldConfig config = entity.level().spigotConfig;
+        int inactiveWakeUpImmunity = checkInactiveWakeup(entity);
+        if (inactiveWakeUpImmunity > -1) {
+            return inactiveWakeUpImmunity;
+        }
+        if (entity.getRemainingFireTicks() > 0) {
+            return 2;
+        }
+        if (entity.activatedImmunityTick >= MinecraftServer.currentTick) {
+            return 1;
+        }
+        long inactiveFor = MinecraftServer.currentTick - entity.activatedTick;
+        // Paper end
+         // quick checks.
+-        if ( entity.wasTouchingWater || entity.getRemainingFireTicks() > 0 )
+        if ( (entity.activationType != ActivationType.WATER && entity.wasTouchingWater && entity.isPushedByFluid()) ) // Paper
+         {
+-            return true;
+            return 100; // Paper
+        }
+        // Paper start
+        if ( !entity.onGround() || entity.getDeltaMovement().horizontalDistanceSqr() > 9.999999747378752E-6D )
+        {
+            return 100;
+         }
+        // Paper end
+         if ( !( entity instanceof AbstractArrow ) )
+         {
+-            if ( !entity.onGround() || !entity.passengers.isEmpty() || entity.isPassenger() )
+            if ( (!entity.onGround() && !(entity instanceof FlyingMob)) ) // Paper - remove passengers logic
+             {
+-                return true;
+                return 10; // Paper
+             }
+         } else if ( !( (AbstractArrow) entity ).isInGround() )
+         {
+-            return true;
+            return 1; // Paper
+         }
+         // special cases.
+         if ( entity instanceof LivingEntity )
+         {
+             LivingEntity living = (LivingEntity) entity;
+-            if ( /*TODO: Missed mapping? living.attackTicks > 0 || */ living.hurtTime > 0 || living.activeEffects.size() > 0 )
+            if ( living.onClimbable() || living.jumping || living.hurtTime > 0 || living.activeEffects.size() > 0 || living.isFreezing()) // Paper
+             {
+-                return true;
+                return 1; // Paper
+             }
+-            if ( entity instanceof PathfinderMob && ( (PathfinderMob) entity ).getTarget() != null )
+            if ( entity instanceof Mob && ((Mob) entity ).getTarget() != null) // Paper
+             {
+-                return true;
+                return 20; // Paper
+             }
+-            if ( entity instanceof Villager && ( (Villager) entity ).canBreed() )
+            // Paper start
+            if (entity instanceof Bee) {
+                Bee bee = (Bee)entity;
+                BlockPos movingTarget = bee.getMovingTarget();
+                if (bee.isAngry() ||
+                    (bee.getHivePos() != null && bee.getHivePos().equals(movingTarget)) ||
+                    (bee.getSavedFlowerPos() != null && bee.getSavedFlowerPos().equals(movingTarget))
+                ) {
+                    return 20;
+                }
+            }
+            if ( entity instanceof Villager ) {
+                Brain<Villager> behaviorController = ((Villager) entity).getBrain();
+
+                if (config.villagersActiveForPanic) {
+                    for (net.minecraft.world.entity.schedule.Activity activity : VILLAGER_PANIC_IMMUNITIES) {
+                        if (behaviorController.isActive(activity)) {
+                            return 20*5;
+                        }
+                    }
+                }
+
+                if (config.villagersWorkImmunityAfter > 0 && inactiveFor >= config.villagersWorkImmunityAfter) {
+                    if (behaviorController.isActive(net.minecraft.world.entity.schedule.Activity.WORK)) {
+                        return config.villagersWorkImmunityFor;
+                    }
+                }
+            }
+            if ( entity instanceof Llama && ( (Llama) entity ).inCaravan() )
+             {
+-                return true;
+                return 1;
+             }
+            // Paper end
+             if ( entity instanceof Animal )
+             {
+                 Animal animal = (Animal) entity;
+                 if ( animal.isBaby() || animal.isInLove() )
+                 {
+-                    return true;
+                    return 5; // Paper
+                 }
+                 if ( entity instanceof Sheep && ( (Sheep) entity ).isSheared() )
+                 {
+-                    return true;
+                    return 1; // Paper
+                 }
+             }
+             if (entity instanceof Creeper && ((Creeper) entity).isIgnited()) { // isExplosive
+-                return true;
+                return 20; // Paper
+            }
+            // Paper start
+            if (entity instanceof Mob && ((Mob) entity).targetSelector.hasTasks() ) {
+                return 0;
+             }
+            if (entity instanceof Pillager) {
+                Pillager pillager = (Pillager) entity;
+                // TODO:?
+            }
+            // Paper end
+         }
+         // SPIGOT-6644: Otherwise the target refresh tick will be missed
+         if (entity instanceof ExperienceOrb) {
+-            return true;
+            return 20; // Paper
+         }
+-        return false;
+        return -1; // Paper
+     }
+ 
+     /**
+@@ -0,0 +0,0 @@ public class ActivationRange
+         if (entity instanceof FireworkRocketEntity || (entity instanceof ItemEntity && (entity.tickCount + entity.getId()) % 4 == 0)) { // Paper - Needed for item gravity, see ItemEntity tick
+             return true;
+         }
+        // Paper start - special case always immunities
+        // immunize brand new entities, dead entities, and portal scenarios
+        if (entity.defaultActivationState || entity.tickCount < 20*10 || !entity.isAlive() || (entity.portalProcess != null && !entity.portalProcess.hasExpired()) || entity.portalCooldown > 0) {
+            return true;
+        }
+        // immunize leashed entities
+        if (entity instanceof Mob && ((Mob)entity).getLeashHolder() instanceof Player) {
+            return true;
+        }
+        // Paper end
+ 
+-        boolean isActive = entity.activatedTick >= MinecraftServer.currentTick || entity.defaultActivationState;
+        boolean isActive = entity.activatedTick >= MinecraftServer.currentTick;
+        entity.isTemporarilyActive = false; // Paper
+ 
+         // Should this entity tick?
+         if ( !isActive )
+@@ -0,0 +0,0 @@ public class ActivationRange
+             if ( ( MinecraftServer.currentTick - entity.activatedTick - 1 ) % 20 == 0 )
+             {
+                 // Check immunities every 20 ticks.
+-                if ( ActivationRange.checkEntityImmunities( entity ) )
+-                {
+-                    // Triggered some sort of immunity, give 20 full ticks before we check again.
+-                    entity.activatedTick = MinecraftServer.currentTick + 20;
+                // Paper start
+                int immunity = checkEntityImmunities(entity);
+                if (immunity >= 0) {
+                    entity.activatedTick = MinecraftServer.currentTick + immunity;
+                } else {
+                    entity.isTemporarilyActive = true;
+                 }
+                // Paper end
+                 isActive = true;
+             }
+         }
+diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
+@@ -0,0 +0,0 @@ public class SpigotWorldConfig
+     public int monsterActivationRange = 32;
+     public int raiderActivationRange = 64;
+     public int miscActivationRange = 16;
+    // Paper start
+    public int flyingMonsterActivationRange = 32;
+    public int waterActivationRange = 16;
+    public int villagerActivationRange = 32;
+    public int wakeUpInactiveAnimals = 4;
+    public int wakeUpInactiveAnimalsEvery = 60*20;
+    public int wakeUpInactiveAnimalsFor = 5*20;
+    public int wakeUpInactiveMonsters = 8;
+    public int wakeUpInactiveMonstersEvery = 20*20;
+    public int wakeUpInactiveMonstersFor = 5*20;
+    public int wakeUpInactiveVillagers = 4;
+    public int wakeUpInactiveVillagersEvery = 30*20;
+    public int wakeUpInactiveVillagersFor = 5*20;
+    public int wakeUpInactiveFlying = 8;
+    public int wakeUpInactiveFlyingEvery = 10*20;
+    public int wakeUpInactiveFlyingFor = 5*20;
+    public int villagersWorkImmunityAfter = 5*20;
+    public int villagersWorkImmunityFor = 20;
+    public boolean villagersActiveForPanic = true;
+    // Paper end
+     public boolean tickInactiveVillagers = true;
+     public boolean ignoreSpectatorActivation = false;
+     private void activationRange()
+     {
+        boolean hasAnimalsConfig = config.getInt("entity-activation-range.animals", this.animalActivationRange) != this.animalActivationRange; // Paper
+         this.animalActivationRange = this.getInt( "entity-activation-range.animals", this.animalActivationRange );
+         this.monsterActivationRange = this.getInt( "entity-activation-range.monsters", this.monsterActivationRange );
+         this.raiderActivationRange = this.getInt( "entity-activation-range.raiders", this.raiderActivationRange );
+         this.miscActivationRange = this.getInt( "entity-activation-range.misc", this.miscActivationRange );
+        // Paper start
+        this.waterActivationRange = this.getInt( "entity-activation-range.water", this.waterActivationRange );
+        this.villagerActivationRange = this.getInt( "entity-activation-range.villagers", hasAnimalsConfig ? this.animalActivationRange : this.villagerActivationRange );
+        this.flyingMonsterActivationRange = this.getInt( "entity-activation-range.flying-monsters", this.flyingMonsterActivationRange );
+
+        this.wakeUpInactiveAnimals = this.getInt("entity-activation-range.wake-up-inactive.animals-max-per-tick", this.wakeUpInactiveAnimals);
+        this.wakeUpInactiveAnimalsEvery = this.getInt("entity-activation-range.wake-up-inactive.animals-every", this.wakeUpInactiveAnimalsEvery);
+        this.wakeUpInactiveAnimalsFor = this.getInt("entity-activation-range.wake-up-inactive.animals-for", this.wakeUpInactiveAnimalsFor);
+
+        this.wakeUpInactiveMonsters = this.getInt("entity-activation-range.wake-up-inactive.monsters-max-per-tick", this.wakeUpInactiveMonsters);
+        this.wakeUpInactiveMonstersEvery = this.getInt("entity-activation-range.wake-up-inactive.monsters-every", this.wakeUpInactiveMonstersEvery);
+        this.wakeUpInactiveMonstersFor = this.getInt("entity-activation-range.wake-up-inactive.monsters-for", this.wakeUpInactiveMonstersFor);
+
+        this.wakeUpInactiveVillagers = this.getInt("entity-activation-range.wake-up-inactive.villagers-max-per-tick", this.wakeUpInactiveVillagers);
+        this.wakeUpInactiveVillagersEvery = this.getInt("entity-activation-range.wake-up-inactive.villagers-every", this.wakeUpInactiveVillagersEvery);
+        this.wakeUpInactiveVillagersFor = this.getInt("entity-activation-range.wake-up-inactive.villagers-for", this.wakeUpInactiveVillagersFor);
+
+        this.wakeUpInactiveFlying = this.getInt("entity-activation-range.wake-up-inactive.flying-monsters-max-per-tick", this.wakeUpInactiveFlying);
+        this.wakeUpInactiveFlyingEvery = this.getInt("entity-activation-range.wake-up-inactive.flying-monsters-every", this.wakeUpInactiveFlyingEvery);
+        this.wakeUpInactiveFlyingFor = this.getInt("entity-activation-range.wake-up-inactive.flying-monsters-for", this.wakeUpInactiveFlyingFor);
+
+        this.villagersWorkImmunityAfter = this.getInt( "entity-activation-range.villagers-work-immunity-after", this.villagersWorkImmunityAfter );
+        this.villagersWorkImmunityFor = this.getInt( "entity-activation-range.villagers-work-immunity-for", this.villagersWorkImmunityFor );
+        this.villagersActiveForPanic = this.getBoolean( "entity-activation-range.villagers-active-for-panic", this.villagersActiveForPanic );
+        // Paper end
+         this.tickInactiveVillagers = this.getBoolean( "entity-activation-range.tick-inactive-villagers", this.tickInactiveVillagers );
+         this.ignoreSpectatorActivation = this.getBoolean( "entity-activation-range.ignore-spectators", this.ignoreSpectatorActivation );
+         this.log( "Entity Activation Range: An " + this.animalActivationRange + " / Mo " + this.monsterActivationRange + " / Ra " + this.raiderActivationRange + " / Mi " + this.miscActivationRange + " / Tiv " + this.tickInactiveVillagers + " / Isa " + this.ignoreSpectatorActivation );
--- a/feature-patches/1044-Anti-Xray.patch
+++ b/feature-patches/1044-Anti-Xray.patch
--- a/feature-patches/1045-Use-Velocity-compression-and-cipher-natives.patch
+++ b/feature-patches/1045-Use-Velocity-compression-and-cipher-natives.patch
@ -0,0 +1,387 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Andrew Steinborn <git@steinborn.me>
+Date: Mon, 26 Jul 2021 02:15:17 -0400
+Subject: [PATCH] Use Velocity compression and cipher natives
+
+== AT ==
+private-f net.minecraft.network.CompressionDecoder inflater
+
+diff --git a/build.gradle.kts b/build.gradle.kts
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/build.gradle.kts
+++ b/build.gradle.kts
+@@ -0,0 +0,0 @@ dependencies {
+     runtimeOnly("org.xerial:sqlite-jdbc:3.47.0.0")
+     runtimeOnly("com.mysql:mysql-connector-j:9.1.0")
+     runtimeOnly("com.lmax:disruptor:3.4.4") // Paper
+    // Paper start - Use Velocity cipher
+    implementation("com.velocitypowered:velocity-native:3.3.0-SNAPSHOT") {
+        isTransitive = false
+    }
+    // Paper end - Use Velocity cipher
+ 
+     runtimeOnly("org.apache.maven:maven-resolver-provider:3.9.6")
+     runtimeOnly("org.apache.maven.resolver:maven-resolver-connector-basic:1.9.18")
+diff --git a/src/main/java/net/minecraft/network/CipherDecoder.java b/src/main/java/net/minecraft/network/CipherDecoder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/CipherDecoder.java
+++ b/src/main/java/net/minecraft/network/CipherDecoder.java
+@@ -0,0 +0,0 @@ import java.util.List;
+ import javax.crypto.Cipher;
+ 
+ public class CipherDecoder extends MessageToMessageDecoder<ByteBuf> {
+-    private final CipherBase cipher;
+    private final com.velocitypowered.natives.encryption.VelocityCipher cipher; // Paper - Use Velocity cipher
+ 
+-    public CipherDecoder(Cipher cipher) {
+-        this.cipher = new CipherBase(cipher);
+    public CipherDecoder(com.velocitypowered.natives.encryption.VelocityCipher cipher) {  // Paper - Use Velocity cipher
+        this.cipher = cipher;  // Paper - Use Velocity cipher
+     }
+ 
+     protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
+-        list.add(this.cipher.decipher(channelHandlerContext, byteBuf));
+        // Paper start - Use Velocity cipher
+        ByteBuf compatible = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), cipher, byteBuf);
+        try {
+            cipher.process(compatible);
+            list.add(compatible);
+        } catch (Exception e) {
+            compatible.release(); // compatible will never be used if we throw an exception
+            throw e;
+        }
+        // Paper end - Use Velocity cipher
+     }
+
+    // Paper start - Use Velocity cipher
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        cipher.close();
+    }
+    // Paper end - Use Velocity cipher
+ }
+diff --git a/src/main/java/net/minecraft/network/CipherEncoder.java b/src/main/java/net/minecraft/network/CipherEncoder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/CipherEncoder.java
+++ b/src/main/java/net/minecraft/network/CipherEncoder.java
+@@ -0,0 +0,0 @@ import io.netty.buffer.ByteBuf;
+ import io.netty.channel.ChannelHandlerContext;
+ import io.netty.handler.codec.MessageToByteEncoder;
+ import javax.crypto.Cipher;
+import java.util.List;
+ 
+-public class CipherEncoder extends MessageToByteEncoder<ByteBuf> {
+-    private final CipherBase cipher;
+public class CipherEncoder extends io.netty.handler.codec.MessageToMessageEncoder<ByteBuf> { // Paper - Use Velocity cipher; change superclass
+    private final com.velocitypowered.natives.encryption.VelocityCipher cipher; // Paper - Use Velocity cipher
+ 
+-    public CipherEncoder(Cipher cipher) {
+-        this.cipher = new CipherBase(cipher);
+    public CipherEncoder(com.velocitypowered.natives.encryption.VelocityCipher cipher) {  // Paper - Use Velocity cipher
+        this.cipher = cipher;  // Paper - Use Velocity cipher
+     }
+ 
+-    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) throws Exception {
+-        this.cipher.encipher(byteBuf, byteBuf2);
+    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
+        // Paper start - Use Velocity cipher
+        ByteBuf compatible = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), cipher, byteBuf);
+        try {
+            cipher.process(compatible);
+            list.add(compatible);
+        } catch (Exception e) {
+            compatible.release(); // compatible will never be used if we throw an exception
+            throw e;
+        }
+        // Paper end - Use Velocity cipher
+     }
+
+    // Paper start - Use Velocity cipher
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        cipher.close();
+    }
+    // Paper end - Use Velocity cipher
+ }
+diff --git a/src/main/java/net/minecraft/network/CompressionDecoder.java b/src/main/java/net/minecraft/network/CompressionDecoder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/CompressionDecoder.java
+++ b/src/main/java/net/minecraft/network/CompressionDecoder.java
+@@ -0,0 +0,0 @@ public class CompressionDecoder extends ByteToMessageDecoder {
+     public static final int MAXIMUM_COMPRESSED_LENGTH = 2097152;
+     public static final int MAXIMUM_UNCOMPRESSED_LENGTH = 8388608;
+     private Inflater inflater;
+    private com.velocitypowered.natives.compression.VelocityCompressor compressor; // Paper - Use Velocity cipher
+     private int threshold;
+     private boolean validateDecompressed;
+ 
+    // Paper start - Use Velocity cipher
+    @io.papermc.paper.annotation.DoNotUse
+     public CompressionDecoder(int compressionThreshold, boolean rejectsBadPackets) {
+        this(null, compressionThreshold, rejectsBadPackets);
+    }
+    public CompressionDecoder(com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold, boolean rejectsBadPackets) {
+         this.threshold = compressionThreshold;
+         this.validateDecompressed = rejectsBadPackets;
+-        this.inflater = new Inflater();
+        this.inflater = compressor == null ? new Inflater() : null;
+        this.compressor = compressor;
+        // Paper end - Use Velocity cipher
+     }
+ 
+     protected void decode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, List<Object> list) throws Exception {
+@@ -0,0 +0,0 @@ public class CompressionDecoder extends ByteToMessageDecoder {
+                     }
+                 }
+ 
+                if (inflater != null) { // Paper - Use Velocity cipher; fallback to vanilla inflater
+                 this.setupInflaterInput(byteBuf);
+                 ByteBuf byteBuf2 = this.inflate(channelHandlerContext, i);
+                 this.inflater.reset();
+                 list.add(byteBuf2);
+                return; // Paper - Use Velocity cipher
+                } // Paper - use velocity compression
+
+                // Paper start - Use Velocity cipher
+                int claimedUncompressedSize = i; // OBFHELPER
+                ByteBuf compatibleIn = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), this.compressor, byteBuf);
+                ByteBuf uncompressed = com.velocitypowered.natives.util.MoreByteBufUtils.preferredBuffer(channelHandlerContext.alloc(), this.compressor, claimedUncompressedSize);
+                try {
+                    this.compressor.inflate(compatibleIn, uncompressed, claimedUncompressedSize);
+                    list.add(uncompressed);
+                    byteBuf.clear();
+                } catch (Exception e) {
+                    uncompressed.release();
+                    throw e;
+                } finally {
+                    compatibleIn.release();
+                }
+                // Paper end - Use Velocity cipher
+             }
+         }
+     }
+ 
+    // Paper start - Use Velocity cipher
+    @Override
+    public void handlerRemoved0(ChannelHandlerContext ctx) throws Exception {
+        if (this.compressor != null) {
+            this.compressor.close();
+        }
+    }
+    // Paper end - Use Velocity cipher
+
+     private void setupInflaterInput(ByteBuf buf) {
+         ByteBuffer byteBuffer;
+         if (buf.nioBufferCount() > 0) {
+@@ -0,0 +0,0 @@ public class CompressionDecoder extends ByteToMessageDecoder {
+         }
+     }
+ 
+-    public void setThreshold(int compressionThreshold, boolean rejectsBadPackets) {
+    // Paper start - Use Velocity cipher
+    public void setThreshold(com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold, boolean rejectsBadPackets) {
+        if (this.compressor == null && compressor != null) { // Only re-configure once. Re-reconfiguring would require closing the native compressor.
+            this.compressor = compressor;
+            this.inflater = null;
+        }
+    // Paper end - Use Velocity cipher
+         this.threshold = compressionThreshold;
+         this.validateDecompressed = rejectsBadPackets;
+     }
+diff --git a/src/main/java/net/minecraft/network/CompressionEncoder.java b/src/main/java/net/minecraft/network/CompressionEncoder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/CompressionEncoder.java
+++ b/src/main/java/net/minecraft/network/CompressionEncoder.java
+@@ -0,0 +0,0 @@ import io.netty.handler.codec.MessageToByteEncoder;
+ import java.util.zip.Deflater;
+ 
+ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
+-    private final byte[] encodeBuf = new byte[8192];
+    @javax.annotation.Nullable private final byte[] encodeBuf; // Paper - Use Velocity cipher
+    @javax.annotation.Nullable // Paper - Use Velocity cipher
+     private final Deflater deflater;
+    @javax.annotation.Nullable // Paper - Use Velocity cipher
+    private final com.velocitypowered.natives.compression.VelocityCompressor compressor; // Paper - Use Velocity cipher
+     private int threshold;
+ 
+    // Paper start - Use Velocity cipher
+     public CompressionEncoder(int compressionThreshold) {
+        this(null, compressionThreshold);
+    }
+    public CompressionEncoder(@javax.annotation.Nullable com.velocitypowered.natives.compression.VelocityCompressor compressor, int compressionThreshold) {
+         this.threshold = compressionThreshold;
+-        this.deflater = new Deflater();
+        if (compressor == null) {
+            this.encodeBuf = new byte[8192];
+            this.deflater = new Deflater();
+        } else {
+            this.encodeBuf = null;
+            this.deflater = null;
+        }
+        this.compressor = compressor;
+        // Paper end - Use Velocity cipher
+     }
+ 
+-    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) {
+    protected void encode(ChannelHandlerContext channelHandlerContext, ByteBuf byteBuf, ByteBuf byteBuf2) throws Exception { // Paper - Use Velocity cipher
+         int i = byteBuf.readableBytes();
+         if (i > 8388608) {
+             throw new IllegalArgumentException("Packet too big (is " + i + ", should be less than 8388608)");
+@@ -0,0 +0,0 @@ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
+                 VarInt.write(byteBuf2, 0);
+                 byteBuf2.writeBytes(byteBuf);
+             } else {
+                if (this.deflater != null) { // Paper - Use Velocity cipher
+                 byte[] bs = new byte[i];
+                 byteBuf.readBytes(bs);
+                 VarInt.write(byteBuf2, bs.length);
+@@ -0,0 +0,0 @@ public class CompressionEncoder extends MessageToByteEncoder<ByteBuf> {
+                 }
+ 
+                 this.deflater.reset();
+                // Paper start - Use Velocity cipher
+                    return;
+                }
+
+                VarInt.write(byteBuf2, i);
+                final ByteBuf compatibleIn = com.velocitypowered.natives.util.MoreByteBufUtils.ensureCompatible(channelHandlerContext.alloc(), this.compressor, byteBuf);
+                try {
+                    this.compressor.deflate(compatibleIn, byteBuf2);
+                } finally {
+                    compatibleIn.release();
+                }
+             }
+         }
+     }
+ 
+    @Override
+    protected ByteBuf allocateBuffer(ChannelHandlerContext ctx, ByteBuf msg, boolean preferDirect) throws Exception{
+        if (this.compressor != null) {
+            // We allocate bytes to be compressed plus 1 byte. This covers two cases:
+            //
+            // - Compression
+            //    According to https://github.com/ebiggers/libdeflate/blob/master/libdeflate.h#L103,
+            //    if the data compresses well (and we do not have some pathological case) then the maximum
+            //    size the compressed size will ever be is the input size minus one.
+            // - Uncompressed
+            //    This is fairly obvious - we will then have one more than the uncompressed size.
+            final int initialBufferSize = msg.readableBytes() + 1;
+            return com.velocitypowered.natives.util.MoreByteBufUtils.preferredBuffer(ctx.alloc(), this.compressor, initialBufferSize);
+        }
+
+        return super.allocateBuffer(ctx, msg, preferDirect);
+    }
+
+    @Override
+    public void handlerRemoved(ChannelHandlerContext ctx) throws Exception {
+        if (this.compressor != null) {
+            this.compressor.close();
+            // Paper end - Use Velocity cipher
+        }
+    }
+
+     public int getThreshold() {
+         return this.threshold;
+     }
+diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+         return networkmanager;
+     }
+ 
+-    public void setEncryptionKey(Cipher decryptionCipher, Cipher encryptionCipher) {
+-        this.encrypted = true;
+-        this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryptionCipher));
+-        this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryptionCipher));
+    // Paper start - Use Velocity cipher
+//    public void setEncryptionKey(Cipher decryptionCipher, Cipher encryptionCipher) {
+//        this.encrypted = true;
+//        this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryptionCipher));
+//        this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryptionCipher));
+//    }
+
+    public void setupEncryption(javax.crypto.SecretKey key) throws net.minecraft.util.CryptException {
+        if (!this.encrypted) {
+            try {
+                com.velocitypowered.natives.encryption.VelocityCipher decryption = com.velocitypowered.natives.util.Natives.cipher.get().forDecryption(key);
+                com.velocitypowered.natives.encryption.VelocityCipher encryption = com.velocitypowered.natives.util.Natives.cipher.get().forEncryption(key);
+
+                this.encrypted = true;
+                this.channel.pipeline().addBefore("splitter", "decrypt", new CipherDecoder(decryption));
+                this.channel.pipeline().addBefore("prepender", "encrypt", new CipherEncoder(encryption));
+            } catch (java.security.GeneralSecurityException e) {
+                throw new net.minecraft.util.CryptException(e);
+            }
+        }
+     }
+    // Paper end - Use Velocity cipher
+ 
+     public boolean isEncrypted() {
+         return this.encrypted;
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+ 
+     public void setupCompression(int compressionThreshold, boolean rejectsBadPackets) {
+         if (compressionThreshold >= 0) {
+            com.velocitypowered.natives.compression.VelocityCompressor compressor = com.velocitypowered.natives.util.Natives.compress.get().create(io.papermc.paper.configuration.GlobalConfiguration.get().misc.compressionLevel.or(-1)); // Paper - Use Velocity cipher
+             ChannelHandler channelhandler = this.channel.pipeline().get("decompress");
+ 
+             if (channelhandler instanceof CompressionDecoder) {
+                 CompressionDecoder packetdecompressor = (CompressionDecoder) channelhandler;
+ 
+-                packetdecompressor.setThreshold(compressionThreshold, rejectsBadPackets);
+                packetdecompressor.setThreshold(compressor, compressionThreshold, rejectsBadPackets); // Paper - Use Velocity cipher
+             } else {
+-                this.channel.pipeline().addAfter("splitter", "decompress", new CompressionDecoder(compressionThreshold, rejectsBadPackets));
+                this.channel.pipeline().addAfter("splitter", "decompress", new CompressionDecoder(compressor, compressionThreshold, rejectsBadPackets)); // Paper - Use Velocity cipher
+             }
+ 
+             channelhandler = this.channel.pipeline().get("compress");
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+ 
+                 packetcompressor.setThreshold(compressionThreshold);
+             } else {
+-                this.channel.pipeline().addAfter("prepender", "compress", new CompressionEncoder(compressionThreshold));
+                this.channel.pipeline().addAfter("prepender", "compress", new CompressionEncoder(compressor, compressionThreshold)); // Paper - Use Velocity cipher
+             }
+             this.channel.pipeline().fireUserEventTriggered(io.papermc.paper.network.ConnectionEvent.COMPRESSION_THRESHOLD_SET); // Paper - Add Channel initialization listeners
+         } else {
+diff --git a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+++ b/src/main/java/net/minecraft/server/network/ServerConnectionListener.java
+@@ -0,0 +0,0 @@ public class ServerConnectionListener {
+             }
+             // Paper end - Warn people with console access that HAProxy is in use.
+ 
+            // Paper start - Use Velocity cipher
+            ServerConnectionListener.LOGGER.info("Paper: Using " + com.velocitypowered.natives.util.Natives.compress.getLoadedVariant() + " compression from Velocity.");
+            ServerConnectionListener.LOGGER.info("Paper: Using " + com.velocitypowered.natives.util.Natives.cipher.getLoadedVariant() + " cipher from Velocity.");
+            // Paper end - Use Velocity cipher
+
+             this.channels.add(((ServerBootstrap) ((ServerBootstrap) (new ServerBootstrap()).channel(oclass)).childHandler(new ChannelInitializer<Channel>() {
+                 protected void initChannel(Channel channel) {
+                     try {
+diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
+             }
+ 
+             SecretKey secretkey = packet.getSecretKey(privatekey);
+-            Cipher cipher = Crypt.getCipher(2, secretkey);
+-            Cipher cipher1 = Crypt.getCipher(1, secretkey);
+            // Paper start - Use Velocity cipher
+//            Cipher cipher = Crypt.getCipher(2, secretkey);
+//            Cipher cipher1 = Crypt.getCipher(1, secretkey);
+            // Paper end - Use Velocity cipher
+ 
+             s = (new BigInteger(Crypt.digestData("", this.server.getKeyPair().getPublic(), secretkey))).toString(16);
+             this.state = ServerLoginPacketListenerImpl.State.AUTHENTICATING;
+-            this.connection.setEncryptionKey(cipher, cipher1);
+            this.connection.setupEncryption(secretkey); // Paper - Use Velocity cipher
+         } catch (CryptException cryptographyexception) {
+             throw new IllegalStateException("Protocol error", cryptographyexception);
+         }
--- a/feature-patches/1046-Optimize-Collision-to-not-load-chunks.patch
+++ b/feature-patches/1046-Optimize-Collision-to-not-load-chunks.patch
@ -0,0 +1,96 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 2 Apr 2020 02:37:57 -0400
+Subject: [PATCH] Optimize Collision to not load chunks
+
+The collision code takes an AABB and generates a cuboid of checks rather
+than a cylinder, so at high velocity this can generate a lot of chunk checks.
+
+Treat an unloaded chunk as a collision for entities, and also for players if
+the "prevent moving into unloaded chunks" setting is enabled.
+
+If that serting is not enabled, collisions will be ignored for players, since
+movement will load only the chunk the player enters anyways and avoids loading
+massive amounts of surrounding chunks due to large AABB lookups.
+
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+     // Paper end - Share random for entities to make them more random
+     public org.bukkit.event.entity.CreatureSpawnEvent.SpawnReason spawnReason; // Paper - Entity#getEntitySpawnReason
+ 
+    public boolean collisionLoadChunks = false; // Paper
+     private CraftEntity bukkitEntity;
+ 
+     public CraftEntity getBukkitEntity() {
+diff --git a/src/main/java/net/minecraft/world/level/BlockCollisions.java b/src/main/java/net/minecraft/world/level/BlockCollisions.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/BlockCollisions.java
+++ b/src/main/java/net/minecraft/world/level/BlockCollisions.java
+@@ -0,0 +0,0 @@ public class BlockCollisions<T> extends AbstractIterator<T> {
+     @Override
+     protected T computeNext() {
+         while (this.cursor.advance()) {
+-            int i = this.cursor.nextX();
+-            int j = this.cursor.nextY();
+-            int k = this.cursor.nextZ();
+            int i = this.cursor.nextX(); final int x = i; // Paper - OBFHELPER
+            int j = this.cursor.nextY(); final int y = j; // Paper - OBFHELPER
+            int k = this.cursor.nextZ(); final int z = k; // Paper - OBFHELPER
+             int l = this.cursor.getNextType();
+             if (l != 3) {
+-                BlockGetter blockGetter = this.getChunk(i, k);
+-                if (blockGetter != null) {
+-                    this.pos.set(i, j, k);
+-                    BlockState blockState = blockGetter.getBlockState(this.pos);
+-                    if ((!this.onlySuffocatingBlocks || blockState.isSuffocating(blockGetter, this.pos))
+                // Paper start - ensure we don't load chunks
+                // BlockGetter blockGetter = this.getChunk(i, k);
+                if (true) {
+                    final @Nullable Entity source = this.context instanceof net.minecraft.world.phys.shapes.EntityCollisionContext entityContext ? entityContext.getEntity() : null;
+                    boolean far = source != null && io.papermc.paper.util.MCUtil.distanceSq(source.getX(), y, source.getZ(), x, y, z) > 14;
+                    this.pos.set(x, y, z);
+                    BlockState blockState;
+                    if (this.collisionGetter instanceof net.minecraft.server.level.WorldGenRegion) {
+                        BlockGetter blockGetter = this.getChunk(x, z);
+                        if (blockGetter == null) {
+                            continue;
+                        }
+                        blockState = blockGetter.getBlockState(this.pos);
+                    } else if ((!far && source instanceof net.minecraft.server.level.ServerPlayer) || (source != null && source.collisionLoadChunks)) {
+                        blockState = this.collisionGetter.getBlockState(this.pos);
+                    } else {
+                        blockState = this.collisionGetter.getBlockStateIfLoaded(this.pos);
+                    }
+                    if (blockState == null) {
+                        if (!(source instanceof net.minecraft.server.level.ServerPlayer) || source.level().paperConfig().chunks.preventMovingIntoUnloadedChunks) {
+                            return this.resultProvider.apply(new BlockPos.MutableBlockPos(x, y, z), Shapes.create(far ? source.getBoundingBox() : new AABB(new BlockPos(x, y, z))));
+                        }
+                        continue;
+                    }
+                    if (true // onlySuffocatingBlocks is only true on the client, so we don't care about it here
+                    // Paper end - ensure we don't load chunks
+                         && (l != 1 || blockState.hasLargeCollisionShape())
+                         && (l != 2 || blockState.is(Blocks.MOVING_PISTON))) {
+                         VoxelShape voxelShape = this.context.getCollisionShape(blockState, this.collisionGetter, this.pos);
+diff --git a/src/main/java/net/minecraft/world/level/CollisionGetter.java b/src/main/java/net/minecraft/world/level/CollisionGetter.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/CollisionGetter.java
+++ b/src/main/java/net/minecraft/world/level/CollisionGetter.java
+@@ -0,0 +0,0 @@ public interface CollisionGetter extends BlockGetter {
+     }
+ 
+     default boolean noCollision(@Nullable Entity entity, AABB box, boolean checkFluid) {
+-        for (VoxelShape voxelShape : checkFluid ? this.getBlockAndLiquidCollisions(entity, box) : this.getBlockCollisions(entity, box)) {
+        try { if (entity != null) entity.collisionLoadChunks = true; // Paper
+            for (VoxelShape voxelShape : checkFluid ? this.getBlockAndLiquidCollisions(entity, box) : this.getBlockCollisions(entity, box)) {
+             if (!voxelShape.isEmpty()) {
+                 return false;
+             }
+         }
+        } finally { if (entity != null) entity.collisionLoadChunks = false; } // Paper
+ 
+         if (!this.getEntityCollisions(entity, box).isEmpty()) {
+             return false;
--- a/feature-patches/1047-Optimize-GoalSelector-Goal.Flag-Set-operations.patch
+++ b/feature-patches/1047-Optimize-GoalSelector-Goal.Flag-Set-operations.patch
@ -0,0 +1,171 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Mon, 6 Apr 2020 17:53:29 -0700
+Subject: [PATCH] Optimize GoalSelector Goal.Flag Set operations
+
+Optimise the stream.anyMatch statement to move to a bitset
+where we can replace the call with a single bitwise operation.
+
+diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java b/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/Goal.java
+@@ -0,0 +0,0 @@ import net.minecraft.world.entity.Entity;
+ import net.minecraft.world.level.Level;
+ 
+ public abstract class Goal {
+-    private final EnumSet<Goal.Flag> flags = EnumSet.noneOf(Goal.Flag.class);
+    private final EnumSet<Goal.Flag> flags = EnumSet.noneOf(Goal.Flag.class); // Paper unused, but dummy to prevent plugins from crashing as hard. Theyll need to support paper in a special case if this is super important, but really doesn't seem like it would be.
+    private final ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<net.minecraft.world.entity.ai.goal.Goal.Flag> goalTypes = new ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<>(Goal.Flag.class); // Paper - remove streams from pathfindergoalselector
+
+    // Paper start - remove streams from pathfindergoalselector; make sure types are not empty
+    public Goal() {
+        if (this.goalTypes.size() == 0) {
+            this.goalTypes.addUnchecked(Flag.UNKNOWN_BEHAVIOR);
+        }
+    }
+    // Paper end - remove streams from pathfindergoalselector
+ 
+     public abstract boolean canUse();
+ 
+@@ -0,0 +0,0 @@ public abstract class Goal {
+     }
+ 
+     public void setFlags(EnumSet<Goal.Flag> controls) {
+-        this.flags.clear();
+-        this.flags.addAll(controls);
+        // Paper start - remove streams from pathfindergoalselector
+        this.goalTypes.clear();
+        this.goalTypes.addAllUnchecked(controls);
+        if (this.goalTypes.size() == 0) {
+            this.goalTypes.addUnchecked(Flag.UNKNOWN_BEHAVIOR);
+        }
+        // Paper end - remove streams from pathfindergoalselector
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public abstract class Goal {
+         return this.getClass().getSimpleName();
+     }
+ 
+-    public EnumSet<Goal.Flag> getFlags() {
+-        return this.flags;
+    // Paper start - remove streams from pathfindergoalselector
+    public ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<Goal.Flag> getFlags() {
+        return this.goalTypes;
+        // Paper end - remove streams from pathfindergoalselector
+     }
+ 
+     // Paper start - Mob Goal API
+     public boolean hasFlag(final Goal.Flag flag) {
+-        return this.flags.contains(flag);
+        return this.goalTypes.hasElement(flag);
+     }
+ 
+     public void addFlag(final Goal.Flag flag) {
+-        this.flags.add(flag);
+        this.goalTypes.addUnchecked(flag);
+     }
+     // Paper end - Mob Goal API
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/GoalSelector.java
+@@ -0,0 +0,0 @@ public class GoalSelector {
+     };
+     private final Map<Goal.Flag, WrappedGoal> lockedFlags = new EnumMap<>(Goal.Flag.class);
+     private final Set<WrappedGoal> availableGoals = new ObjectLinkedOpenHashSet<>();
+-    private final EnumSet<Goal.Flag> disabledFlags = EnumSet.noneOf(Goal.Flag.class);
+    private static final Goal.Flag[] GOAL_FLAG_VALUES = Goal.Flag.values(); // Paper - remove streams from pathfindergoalselector
+    private final ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<net.minecraft.world.entity.ai.goal.Goal.Flag> goalTypes = new ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<>(Goal.Flag.class); // Paper - remove streams from pathfindergoalselector
+     private int curRate; // Paper - EAR 2
+ 
+     public void addGoal(int priority, Goal goal) {
+@@ -0,0 +0,0 @@ public class GoalSelector {
+         this.availableGoals.removeIf(wrappedGoalx -> wrappedGoalx.getGoal() == goal);
+     }
+ 
+-    private static boolean goalContainsAnyFlags(WrappedGoal goal, EnumSet<Goal.Flag> controls) {
+-        for (Goal.Flag flag : goal.getFlags()) {
+-            if (controls.contains(flag)) {
+-                return true;
+-            }
+-        }
+-
+-        return false;
+    // Paper start
+    private static boolean goalContainsAnyFlags(WrappedGoal goal, ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<Goal.Flag> controls) {
+        return goal.getFlags().hasCommonElements(controls);
+     }
+ 
+     private static boolean goalCanBeReplacedForAllFlags(WrappedGoal goal, Map<Goal.Flag, WrappedGoal> goalsByControl) {
+-        for (Goal.Flag flag : goal.getFlags()) {
+        long flagIterator = goal.getFlags().getBackingSet();
+        int wrappedGoalSize = goal.getFlags().size();
+        for (int i = 0; i < wrappedGoalSize; ++i) {
+            final Goal.Flag flag = GOAL_FLAG_VALUES[Long.numberOfTrailingZeros(flagIterator)];
+            flagIterator ^= ca.spottedleaf.concurrentutil.util.IntegerUtil.getTrailingBit(flagIterator);
+            // Paper end
+             if (!goalsByControl.getOrDefault(flag, NO_GOAL).canBeReplacedBy(goal)) {
+                 return false;
+             }
+@@ -0,0 +0,0 @@ public class GoalSelector {
+         profilerFiller.push("goalCleanup");
+ 
+         for (WrappedGoal wrappedGoal : this.availableGoals) {
+-            if (wrappedGoal.isRunning() && (goalContainsAnyFlags(wrappedGoal, this.disabledFlags) || !wrappedGoal.canContinueToUse())) {
+            if (wrappedGoal.isRunning() && (goalContainsAnyFlags(wrappedGoal, this.goalTypes) || !wrappedGoal.canContinueToUse())) { // Paper - Perf: optimize goal types by removing streams
+                 wrappedGoal.stop();
+             }
+         }
+@@ -0,0 +0,0 @@ public class GoalSelector {
+         profilerFiller.push("goalUpdate");
+ 
+         for (WrappedGoal wrappedGoal2 : this.availableGoals) {
+-            if (!wrappedGoal2.isRunning()
+-                && !goalContainsAnyFlags(wrappedGoal2, this.disabledFlags)
+-                && goalCanBeReplacedForAllFlags(wrappedGoal2, this.lockedFlags)
+-                && wrappedGoal2.canUse()) {
+-                for (Goal.Flag flag : wrappedGoal2.getFlags()) {
+            // Paper start
+            if (!wrappedGoal2.isRunning() && !goalContainsAnyFlags(wrappedGoal2, this.goalTypes) && goalCanBeReplacedForAllFlags(wrappedGoal2, this.lockedFlags) && wrappedGoal2.canUse()) {
+                long flagIterator = wrappedGoal2.getFlags().getBackingSet();
+                int wrappedGoalSize = wrappedGoal2.getFlags().size();
+                for (int i = 0; i < wrappedGoalSize; ++i) {
+                    final Goal.Flag flag = GOAL_FLAG_VALUES[Long.numberOfTrailingZeros(flagIterator)];
+                    flagIterator ^= ca.spottedleaf.concurrentutil.util.IntegerUtil.getTrailingBit(flagIterator);
+                    // Paper end
+                     WrappedGoal wrappedGoal3 = this.lockedFlags.getOrDefault(flag, NO_GOAL);
+                     wrappedGoal3.stop();
+                     this.lockedFlags.put(flag, wrappedGoal2);
+@@ -0,0 +0,0 @@ public class GoalSelector {
+     }
+ 
+     public void disableControlFlag(Goal.Flag control) {
+-        this.disabledFlags.add(control);
+        this.goalTypes.addUnchecked(control); // Paper - remove streams from pathfindergoalselector
+     }
+ 
+     public void enableControlFlag(Goal.Flag control) {
+-        this.disabledFlags.remove(control);
+        this.goalTypes.removeUnchecked(control); // Paper - remove streams from pathfindergoalselector
+     }
+ 
+     public void setControlFlag(Goal.Flag control, boolean enabled) {
+diff --git a/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java b/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
+++ b/src/main/java/net/minecraft/world/entity/ai/goal/WrappedGoal.java
+@@ -0,0 +0,0 @@ public class WrappedGoal extends Goal {
+     }
+ 
+     @Override
+-    public EnumSet<Goal.Flag> getFlags() {
+    // Paper start - remove streams from pathfindergoalselector
+    public ca.spottedleaf.moonrise.common.set.OptimizedSmallEnumSet<Goal.Flag> getFlags() {
+         return this.goal.getFlags();
+        // Paper end - remove streams from pathfindergoalselector
+     }
+ 
+     public boolean isRunning() {
--- a/feature-patches/1048-Optimize-Hoppers.patch
+++ b/feature-patches/1048-Optimize-Hoppers.patch
@ -0,0 +1,664 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 27 Apr 2016 22:09:52 -0400
+Subject: [PATCH] Optimize Hoppers
+
+* Removes unnecessary extra calls to .update() that are very expensive
+* Lots of itemstack cloning removed. Only clone if the item is actually moved
+* Return true when a plugin cancels inventory move item event instead of false, as false causes pulls to cycle through all items.
+  However, pushes do not exhibit the same behavior, so this is not something plugins could of been relying on.
+* Add option (Default on) to cooldown hoppers when they fail to move an item due to full inventory
+* Skip subsequent InventoryMoveItemEvents if a plugin does not use the item after first event fire for an iteration by tracking changes to the event via an internal event implementation.
+* Don't check for Entities with Inventories if the block above us is also occluding (not just Inventoried)
+* Remove Streams from Item Suck In and restore restore 1.12 AABB checks which is simpler and no voxel allocations (was doing TWO Item Suck ins)
+
+diff --git a/src/main/java/io/papermc/paper/event/inventory/PaperInventoryMoveItemEvent.java b/src/main/java/io/papermc/paper/event/inventory/PaperInventoryMoveItemEvent.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/event/inventory/PaperInventoryMoveItemEvent.java
+@@ -0,0 +0,0 @@
+package io.papermc.paper.event.inventory;
+
+import org.bukkit.event.inventory.InventoryMoveItemEvent;
+import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.ItemStack;
+import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.framework.qual.DefaultQualifier;
+import org.jetbrains.annotations.NotNull;
+
+@DefaultQualifier(NonNull.class)
+public class PaperInventoryMoveItemEvent extends InventoryMoveItemEvent {
+
+    public boolean calledSetItem;
+    public boolean calledGetItem;
+
+    public PaperInventoryMoveItemEvent(final @NotNull Inventory sourceInventory, final @NotNull ItemStack itemStack, final @NotNull Inventory destinationInventory, final boolean didSourceInitiate) {
+        super(sourceInventory, itemStack, destinationInventory, didSourceInitiate);
+    }
+
+    @Override
+    public ItemStack getItem() {
+        this.calledGetItem = true;
+        return super.getItem();
+    }
+
+    @Override
+    public void setItem(final ItemStack itemStack) {
+        super.setItem(itemStack);
+        this.calledSetItem = true;
+    }
+}
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             ServerLevel worldserver = (ServerLevel) iterator.next();
+             worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - BlockPhysicsEvent
+             worldserver.hasEntityMoveEvent = io.papermc.paper.event.entity.EntityMoveEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - Add EntityMoveEvent
+            net.minecraft.world.level.block.entity.HopperBlockEntity.skipHopperEvents = worldserver.paperConfig().hopper.disableMoveEvent || org.bukkit.event.inventory.InventoryMoveItemEvent.getHandlerList().getRegisteredListeners().length == 0; // Paper - Perf: Optimize Hoppers
+ 
+             gameprofilerfiller.push(() -> {
+                 String s = String.valueOf(worldserver);
+diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
+@@ -0,0 +0,0 @@ public final class ItemStack implements DataComponentHolder {
+     }
+ 
+     public ItemStack copy() {
+-        if (this.isEmpty()) {
+        // Paper start - Perf: Optimize Hoppers
+        return this.copy(false);
+    }
+
+    public ItemStack copy(boolean originalItem) {
+        if (!originalItem && this.isEmpty()) {
+            // Paper end - Perf: Optimize Hoppers
+             return ItemStack.EMPTY;
+         } else {
+-            ItemStack itemstack = new ItemStack(this.getItem(), this.count, this.components.copy());
+            ItemStack itemstack = new ItemStack(originalItem ? this.item : this.getItem(), this.count, this.components.copy()); // Paper - Perf: Optimize Hoppers
+ 
+             itemstack.setPopTime(this.getPopTime());
+             return itemstack;
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/BlockEntity.java
+@@ -0,0 +0,0 @@ import org.bukkit.inventory.InventoryHolder;
+ // CraftBukkit end
+ 
+ public abstract class BlockEntity {
+    static boolean ignoreTileUpdates; // Paper - Perf: Optimize Hoppers
+ 
+     // CraftBukkit start - data containers
+     private static final CraftPersistentDataTypeRegistry DATA_TYPE_REGISTRY = new CraftPersistentDataTypeRegistry();
+@@ -0,0 +0,0 @@ public abstract class BlockEntity {
+ 
+     public void setChanged() {
+         if (this.level != null) {
+            if (ignoreTileUpdates) return; // Paper - Perf: Optimize Hoppers
+             BlockEntity.setChanged(this.level, this.worldPosition, this.blockState);
+         }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/HopperBlockEntity.java
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+ 
+     }
+ 
+    // Paper start - Perf: Optimize Hoppers
+    private static final int HOPPER_EMPTY = 0;
+    private static final int HOPPER_HAS_ITEMS = 1;
+    private static final int HOPPER_IS_FULL = 2;
+
+    private static int getFullState(final HopperBlockEntity tileEntity) {
+        tileEntity.unpackLootTable(null);
+
+        final List<ItemStack> hopperItems = tileEntity.getItems();
+
+        boolean empty = true;
+        boolean full = true;
+
+        for (int i = 0, len = hopperItems.size(); i < len; ++i) {
+            final ItemStack stack = hopperItems.get(i);
+            if (stack.isEmpty()) {
+                full = false;
+                continue;
+            }
+
+            if (!full) {
+                // can't be full
+                return HOPPER_HAS_ITEMS;
+            }
+
+            empty = false;
+
+            if (stack.getCount() != stack.getMaxStackSize()) {
+                // can't be full or empty
+                return HOPPER_HAS_ITEMS;
+            }
+        }
+
+        return empty ? HOPPER_EMPTY : (full ? HOPPER_IS_FULL : HOPPER_HAS_ITEMS);
+    }
+    // Paper end - Perf: Optimize Hoppers
+
+     private static boolean tryMoveItems(Level world, BlockPos pos, BlockState state, HopperBlockEntity blockEntity, BooleanSupplier booleansupplier) {
+         if (world.isClientSide) {
+             return false;
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+             if (!blockEntity.isOnCooldown() && (Boolean) state.getValue(HopperBlock.ENABLED)) {
+                 boolean flag = false;
+ 
+-                if (!blockEntity.isEmpty()) {
+                final int fullState = getFullState(blockEntity); // Paper - Perf: Optimize Hoppers
+                if (fullState != HOPPER_EMPTY) { // Paper - Perf: Optimize Hoppers
+                     flag = HopperBlockEntity.ejectItems(world, pos, blockEntity);
+                 }
+ 
+-                if (!blockEntity.inventoryFull()) {
+                if (fullState != HOPPER_IS_FULL || flag) { // Paper - Perf: Optimize Hoppers
+                     flag |= booleansupplier.getAsBoolean();
+                 }
+ 
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+         return false;
+     }
+ 
+    // Paper start - Perf: Optimize Hoppers
+    private static boolean skipPullModeEventFire;
+    private static boolean skipPushModeEventFire;
+    public static boolean skipHopperEvents;
+
+    private static boolean hopperPush(final Level level, final Container destination, final Direction direction, final HopperBlockEntity hopper) {
+        skipPushModeEventFire = skipHopperEvents;
+        boolean foundItem = false;
+        for (int i = 0; i < hopper.getContainerSize(); ++i) {
+            final ItemStack item = hopper.getItem(i);
+            if (!item.isEmpty()) {
+                foundItem = true;
+                ItemStack origItemStack = item;
+                ItemStack movedItem = origItemStack;
+
+                final int originalItemCount = origItemStack.getCount();
+                final int movedItemCount = Math.min(level.spigotConfig.hopperAmount, originalItemCount);
+                origItemStack.setCount(movedItemCount);
+
+                // We only need to fire the event once to give protection plugins a chance to cancel this event
+                // Because nothing uses getItem, every event call should end up the same result.
+                if (!skipPushModeEventFire) {
+                    movedItem = callPushMoveEvent(destination, movedItem, hopper);
+                    if (movedItem == null) { // cancelled
+                        origItemStack.setCount(originalItemCount);
+                        return false;
+                    }
+                }
+
+                final ItemStack remainingItem = addItem(hopper, destination, movedItem, direction);
+                final int remainingItemCount = remainingItem.getCount();
+                if (remainingItemCount != movedItemCount) {
+                    origItemStack = origItemStack.copy(true);
+                    origItemStack.setCount(originalItemCount);
+                    if (!origItemStack.isEmpty()) {
+                        origItemStack.setCount(originalItemCount - movedItemCount + remainingItemCount);
+                    }
+                    hopper.setItem(i, origItemStack);
+                    destination.setChanged();
+                    return true;
+                }
+                origItemStack.setCount(originalItemCount);
+            }
+        }
+        if (foundItem && level.paperConfig().hopper.cooldownWhenFull) { // Inventory was full - cooldown
+            hopper.setCooldown(level.spigotConfig.hopperTransfer);
+        }
+        return false;
+    }
+
+    private static boolean hopperPull(final Level level, final Hopper hopper, final Container container, ItemStack origItemStack, final int i) {
+        ItemStack movedItem = origItemStack;
+        final int originalItemCount = origItemStack.getCount();
+        final int movedItemCount = Math.min(level.spigotConfig.hopperAmount, originalItemCount);
+        container.setChanged(); // original logic always marks source inv as changed even if no move happens.
+        movedItem.setCount(movedItemCount);
+
+        if (!skipPullModeEventFire) {
+            movedItem = callPullMoveEvent(hopper, container, movedItem);
+            if (movedItem == null) { // cancelled
+                origItemStack.setCount(originalItemCount);
+                // Drastically improve performance by returning true.
+                // No plugin could of relied on the behavior of false as the other call
+                // site for IMIE did not exhibit the same behavior
+                return true;
+            }
+        }
+
+        final ItemStack remainingItem = addItem(container, hopper, movedItem, null);
+        final int remainingItemCount = remainingItem.getCount();
+        if (remainingItemCount != movedItemCount) {
+            origItemStack = origItemStack.copy(true);
+            origItemStack.setCount(originalItemCount);
+            if (!origItemStack.isEmpty()) {
+                origItemStack.setCount(originalItemCount - movedItemCount + remainingItemCount);
+            }
+
+            ignoreTileUpdates = true;
+            container.setItem(i, origItemStack);
+            ignoreTileUpdates = false;
+            container.setChanged();
+            return true;
+        }
+        origItemStack.setCount(originalItemCount);
+
+        if (level.paperConfig().hopper.cooldownWhenFull) {
+            cooldownHopper(hopper);
+        }
+
+        return false;
+    }
+
+    @Nullable
+    private static ItemStack callPushMoveEvent(Container iinventory, ItemStack itemstack, HopperBlockEntity hopper) {
+        final Inventory destinationInventory = getInventory(iinventory);
+        final io.papermc.paper.event.inventory.PaperInventoryMoveItemEvent event = new io.papermc.paper.event.inventory.PaperInventoryMoveItemEvent(hopper.getOwner(false).getInventory(),
+            CraftItemStack.asCraftMirror(itemstack), destinationInventory, true);
+        final boolean result = event.callEvent();
+        if (!event.calledGetItem && !event.calledSetItem) {
+            skipPushModeEventFire = true;
+        }
+        if (!result) {
+            cooldownHopper(hopper);
+            return null;
+        }
+
+        if (event.calledSetItem) {
+            return CraftItemStack.asNMSCopy(event.getItem());
+        } else {
+            return itemstack;
+        }
+    }
+
+    @Nullable
+    private static ItemStack callPullMoveEvent(final Hopper hopper, final Container container, final ItemStack itemstack) {
+        final Inventory sourceInventory = getInventory(container);
+        final Inventory destination = getInventory(hopper);
+
+        // Mirror is safe as no plugins ever use this item
+        final io.papermc.paper.event.inventory.PaperInventoryMoveItemEvent event = new io.papermc.paper.event.inventory.PaperInventoryMoveItemEvent(sourceInventory, CraftItemStack.asCraftMirror(itemstack), destination, false);
+        final boolean result = event.callEvent();
+        if (!event.calledGetItem && !event.calledSetItem) {
+            skipPullModeEventFire = true;
+        }
+        if (!result) {
+            cooldownHopper(hopper);
+            return null;
+        }
+
+        if (event.calledSetItem) {
+            return CraftItemStack.asNMSCopy(event.getItem());
+        } else {
+            return itemstack;
+        }
+    }
+
+    private static Inventory getInventory(final Container container) {
+        final Inventory sourceInventory;
+        if (container instanceof CompoundContainer compoundContainer) {
+            // Have to special-case large chests as they work oddly
+            sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest(compoundContainer);
+        } else if (container instanceof BlockEntity blockEntity) {
+            sourceInventory = blockEntity.getOwner(false).getInventory();
+        } else if (container.getOwner() != null) {
+            sourceInventory = container.getOwner().getInventory();
+        } else {
+            sourceInventory = new CraftInventory(container);
+        }
+        return sourceInventory;
+    }
+
+    private static void cooldownHopper(final Hopper hopper) {
+        if (hopper instanceof HopperBlockEntity blockEntity && blockEntity.getLevel() != null) {
+            blockEntity.setCooldown(blockEntity.getLevel().spigotConfig.hopperTransfer);
+        }
+    }
+
+    private static boolean allMatch(Container iinventory, Direction enumdirection, java.util.function.BiPredicate<ItemStack, Integer> test) {
+        if (iinventory instanceof WorldlyContainer) {
+            for (int i : ((WorldlyContainer) iinventory).getSlotsForFace(enumdirection)) {
+                if (!test.test(iinventory.getItem(i), i)) {
+                    return false;
+                }
+            }
+        } else {
+            int size = iinventory.getContainerSize();
+            for (int i = 0; i < size; i++) {
+                if (!test.test(iinventory.getItem(i), i)) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    private static boolean anyMatch(Container iinventory, Direction enumdirection, java.util.function.BiPredicate<ItemStack, Integer> test) {
+        if (iinventory instanceof WorldlyContainer) {
+            for (int i : ((WorldlyContainer) iinventory).getSlotsForFace(enumdirection)) {
+                if (test.test(iinventory.getItem(i), i)) {
+                    return true;
+                }
+            }
+        } else {
+            int size = iinventory.getContainerSize();
+            for (int i = 0; i < size; i++) {
+                if (test.test(iinventory.getItem(i), i)) {
+                    return true;
+                }
+            }
+        }
+        return true;
+    }
+    private static final java.util.function.BiPredicate<ItemStack, Integer> STACK_SIZE_TEST = (itemstack, i) -> itemstack.getCount() >= itemstack.getMaxStackSize();
+    private static final java.util.function.BiPredicate<ItemStack, Integer> IS_EMPTY_TEST = (itemstack, i) -> itemstack.isEmpty();
+    // Paper end - Perf: Optimize Hoppers
+
+     private static boolean ejectItems(Level world, BlockPos pos, HopperBlockEntity blockEntity) {
+         Container iinventory = HopperBlockEntity.getAttachedContainer(world, pos, blockEntity);
+ 
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+             if (HopperBlockEntity.isFullContainer(iinventory, enumdirection)) {
+                 return false;
+             } else {
+-                for (int i = 0; i < blockEntity.getContainerSize(); ++i) {
+-                    ItemStack itemstack = blockEntity.getItem(i);
+-
+-                    if (!itemstack.isEmpty()) {
+-                        int j = itemstack.getCount();
+-                        // CraftBukkit start - Call event when pushing items into other inventories
+-                        ItemStack original = itemstack.copy();
+-                        CraftItemStack oitemstack = CraftItemStack.asCraftMirror(blockEntity.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
+-
+-                        Inventory destinationInventory;
+-                        // Have to special case large chests as they work oddly
+-                        if (iinventory instanceof CompoundContainer) {
+-                            destinationInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory);
+-                        } else if (iinventory.getOwner() != null) {
+-                            destinationInventory = iinventory.getOwner().getInventory();
+-                        } else {
+-                            destinationInventory = new CraftInventory(iinventory);
+-                        }
+-
+-                        InventoryMoveItemEvent event = new InventoryMoveItemEvent(blockEntity.getOwner().getInventory(), oitemstack, destinationInventory, true);
+-                        world.getCraftServer().getPluginManager().callEvent(event);
+-                        if (event.isCancelled()) {
+-                            blockEntity.setItem(i, original);
+-                            blockEntity.setCooldown(world.spigotConfig.hopperTransfer); // Delay hopper checks // Spigot
+-                            return false;
+-                        }
+-                        int origCount = event.getItem().getAmount(); // Spigot
+-                        ItemStack itemstack1 = HopperBlockEntity.addItem(blockEntity, iinventory, CraftItemStack.asNMSCopy(event.getItem()), enumdirection);
+-                        // CraftBukkit end
+-
+-                        if (itemstack1.isEmpty()) {
+-                            iinventory.setChanged();
+-                            return true;
+-                        }
+-
+-                        itemstack.setCount(j);
+-                        // Spigot start
+-                        itemstack.shrink(origCount - itemstack1.getCount());
+-                        if (j <= world.spigotConfig.hopperAmount) {
+-                            // Spigot end
+-                            blockEntity.setItem(i, itemstack);
+-                        }
+-                    }
+-                }
+-
+-                return false;
+                // Paper start - Perf: Optimize Hoppers
+                return hopperPush(world, iinventory, enumdirection, blockEntity);
+                //for (int i = 0; i < blockEntity.getContainerSize(); ++i) {
+                //    ItemStack itemstack = blockEntity.getItem(i);
+
+                //    if (!itemstack.isEmpty()) {
+                //        int j = itemstack.getCount();
+                //        // CraftBukkit start - Call event when pushing items into other inventories
+                //        ItemStack original = itemstack.copy();
+                //        CraftItemStack oitemstack = CraftItemStack.asCraftMirror(blockEntity.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
+
+                //        Inventory destinationInventory;
+                //        // Have to special case large chests as they work oddly
+                //        if (iinventory instanceof CompoundContainer) {
+                //            destinationInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory);
+                //        } else if (iinventory.getOwner() != null) {
+                //            destinationInventory = iinventory.getOwner().getInventory();
+                //        } else {
+                //            destinationInventory = new CraftInventory(iinventory);
+                //        }
+
+                //        InventoryMoveItemEvent event = new InventoryMoveItemEvent(tileentityhopper.getOwner().getInventory(), oitemstack, destinationInventory, true);
+                //        world.getCraftServer().getPluginManager().callEvent(event);
+                //        if (event.isCancelled()) {
+                //            blockEntity.setItem(i, original);
+                //            blockEntity.setCooldown(world.spigotConfig.hopperTransfer); // Delay hopper checks // Spigot
+                //            return false;
+                //        }
+                //        int origCount = event.getItem().getAmount(); // Spigot
+                //        ItemStack itemstack1 = HopperBlockEntity.addItem(blockEntity, iinventory, CraftItemStack.asNMSCopy(event.getItem()), enumdirection);
+                //        // CraftBukkit end
+
+                //        if (itemstack1.isEmpty()) {
+                //            iinventory.setChanged();
+                //            return true;
+                //        }
+
+                //        itemstack.setCount(j);
+                //        // Spigot start
+                //        itemstack.shrink(origCount - itemstack1.getCount());
+                //        if (j <= world.spigotConfig.hopperAmount) {
+                //          // Spigot end
+                //            blockEntity.setItem(i, itemstack);
+                //        }
+                //    }
+                //}
+
+                // return false;
+                // Paper end - Perf: Optimize Hoppers
+             }
+         }
+     }
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+                 return false;
+             }
+         }
+-
+         return true;
+     }
+ 
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+ 
+         if (iinventory != null) {
+             Direction enumdirection = Direction.DOWN;
+            skipPullModeEventFire = skipHopperEvents; // Paper - Perf: Optimize Hoppers
+             int[] aint = HopperBlockEntity.getSlots(iinventory, enumdirection);
+             int i = aint.length;
+ 
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+         ItemStack itemstack = iinventory.getItem(i);
+ 
+         if (!itemstack.isEmpty() && HopperBlockEntity.canTakeItemFromContainer(ihopper, iinventory, itemstack, i, enumdirection)) {
+-            int j = itemstack.getCount();
+-            // CraftBukkit start - Call event on collection of items from inventories into the hopper
+-            ItemStack original = itemstack.copy();
+-            CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
+-
+-            Inventory sourceInventory;
+-            // Have to special case large chests as they work oddly
+-            if (iinventory instanceof CompoundContainer) {
+-                sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory);
+-            } else if (iinventory.getOwner() != null) {
+-                sourceInventory = iinventory.getOwner().getInventory();
+-            } else {
+-                sourceInventory = new CraftInventory(iinventory);
+-            }
+-
+-            InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack, ihopper.getOwner().getInventory(), false);
+-
+-            Bukkit.getServer().getPluginManager().callEvent(event);
+-            if (event.isCancelled()) {
+-                iinventory.setItem(i, original);
+-
+-                if (ihopper instanceof HopperBlockEntity) {
+-                    ((HopperBlockEntity) ihopper).setCooldown(world.spigotConfig.hopperTransfer); // Spigot
+-                }
+-
+-                return false;
+-            }
+-            int origCount = event.getItem().getAmount(); // Spigot
+-            ItemStack itemstack1 = HopperBlockEntity.addItem(iinventory, ihopper, CraftItemStack.asNMSCopy(event.getItem()), null);
+-            // CraftBukkit end
+-
+-            if (itemstack1.isEmpty()) {
+-                iinventory.setChanged();
+-                return true;
+-            }
+-
+-            itemstack.setCount(j);
+-            // Spigot start
+-            itemstack.shrink(origCount - itemstack1.getCount());
+-            if (j <= world.spigotConfig.hopperAmount) {
+-                // Spigot end
+-                iinventory.setItem(i, itemstack);
+-            }
+            // Paper start - Perf: Optimize Hoppers
+            return hopperPull(world, ihopper, iinventory, itemstack, i);
+        //    int j = itemstack.getCount();
+        //    // CraftBukkit start - Call event on collection of items from inventories into the hopper
+        //    ItemStack original = itemstack.copy();
+        //    CraftItemStack oitemstack = CraftItemStack.asCraftMirror(iinventory.removeItem(i, world.spigotConfig.hopperAmount)); // Spigot
+
+        //    Inventory sourceInventory;
+        //    // Have to special case large chests as they work oddly
+        //    if (iinventory instanceof CompoundContainer) {
+        //        sourceInventory = new org.bukkit.craftbukkit.inventory.CraftInventoryDoubleChest((CompoundContainer) iinventory);
+        //    } else if (iinventory.getOwner() != null) {
+        //        sourceInventory = iinventory.getOwner().getInventory();
+        //    } else {
+        //        sourceInventory = new CraftInventory(iinventory);
+        //    }
+
+        //    InventoryMoveItemEvent event = new InventoryMoveItemEvent(sourceInventory, oitemstack, ihopper.getOwner().getInventory(), false);
+
+        //    Bukkit.getServer().getPluginManager().callEvent(event);
+        //    if (event.isCancelled()) {
+        //        iinventory.setItem(i, original);
+
+        //        if (ihopper instanceof HopperBlockEntity) {
+        //            ((HopperBlockEntity) ihopper).setCooldown(world.spigotConfig.hopperTransfer); // Spigot
+        //        }
+
+        //        return false;
+        //    }
+        //    int origCount = event.getItem().getAmount(); // Spigot
+        //    ItemStack itemstack1 = HopperBlockEntity.addItem(iinventory, ihopper, CraftItemStack.asNMSCopy(event.getItem()), null);
+        //    // CraftBukkit end
+
+        //    if (itemstack1.isEmpty()) {
+        //        iinventory.setChanged();
+        //        return true;
+        //    }
+
+        //    itemstack.setCount(j);
+        //    // Spigot start
+        //    itemstack.shrink(origCount - itemstack1.getCount());
+        //    if (j <= world.spigotConfig.hopperAmount) {
+        //        // Spigot end
+        //        iinventory.setItem(i, itemstack);
+        //    }
+            // Paper end - Perf: Optimize Hoppers
+         }
+ 
+         return false;
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+     public static boolean addItem(Container inventory, ItemEntity itemEntity) {
+         boolean flag = false;
+         // CraftBukkit start
+-        InventoryPickupItemEvent event = new InventoryPickupItemEvent(inventory.getOwner().getInventory(), (org.bukkit.entity.Item) itemEntity.getBukkitEntity());
+        if (InventoryPickupItemEvent.getHandlerList().getRegisteredListeners().length > 0) { // Paper - optimize hoppers
+        InventoryPickupItemEvent event = new InventoryPickupItemEvent(getInventory(inventory), (org.bukkit.entity.Item) itemEntity.getBukkitEntity()); // Paper - Perf: Optimize Hoppers; use getInventory() to avoid snapshot creation
+         itemEntity.level().getCraftServer().getPluginManager().callEvent(event);
+         if (event.isCancelled()) {
+             return false;
+         }
+         // CraftBukkit end
+        } // Paper - Perf: Optimize Hoppers
+         ItemStack itemstack = itemEntity.getItem().copy();
+         ItemStack itemstack1 = HopperBlockEntity.addItem((Container) null, inventory, itemstack, (Direction) null);
+ 
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+                     stack = stack.split(to.getMaxStackSize());
+                 }
+                 // Spigot end
+                ignoreTileUpdates = true; // Paper - Perf: Optimize Hoppers
+                 to.setItem(slot, stack);
+                ignoreTileUpdates = false; // Paper - Perf: Optimize Hoppers
+                 stack = leftover; // Paper - Make hoppers respect inventory max stack size
+                 flag = true;
+             } else if (HopperBlockEntity.canMergeItems(itemstack1, stack)) {
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+ 
+     @Nullable
+     public static Container getContainerAt(Level world, BlockPos pos) {
+-        return HopperBlockEntity.getContainerAt(world, pos, world.getBlockState(pos), (double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D, (double) pos.getZ() + 0.5D);
+        return HopperBlockEntity.getContainerAt(world, pos, world.getBlockState(pos), (double) pos.getX() + 0.5D, (double) pos.getY() + 0.5D, (double) pos.getZ() + 0.5D, true);
+     }
+ 
+     @Nullable
+     private static Container getContainerAt(Level world, BlockPos pos, BlockState state, double x, double y, double z) {
+        // Paper start - Perf: Optimize Hoppers
+        return HopperBlockEntity.getContainerAt(world, pos, state, x, y, z, false);
+    }
+    @Nullable
+    private static Container getContainerAt(Level world, BlockPos pos, BlockState state, double x, double y, double z, boolean optimizeEntities) {
+        // Paper end - Perf: Optimize Hoppers
+         Container iinventory = HopperBlockEntity.getBlockContainer(world, pos, state);
+ 
+-        if (iinventory == null) {
+        if (iinventory == null && (!optimizeEntities || !world.paperConfig().hopper.ignoreOccludingBlocks || !state.getBukkitMaterial().isOccluding())) { // Paper - Perf: Optimize Hoppers
+             iinventory = HopperBlockEntity.getEntityContainer(world, x, y, z);
+         }
+ 
+@@ -0,0 +0,0 @@ public class HopperBlockEntity extends RandomizableContainerBlockEntity implemen
+ 
+     @Nullable
+     private static Container getEntityContainer(Level world, double x, double y, double z) {
+-        List<Entity> list = world.getEntities((Entity) null, new AABB(x - 0.5D, y - 0.5D, z - 0.5D, x + 0.5D, y + 0.5D, z + 0.5D), EntitySelector.CONTAINER_ENTITY_SELECTOR);
+        List<Entity> list = world.getEntitiesOfClass((Class) Container.class, new AABB(x - 0.5D, y - 0.5D, z - 0.5D, x + 0.5D, y + 0.5D, z + 0.5D), EntitySelector.CONTAINER_ENTITY_SELECTOR); // Paper - Perf: Optimize hoppers
+ 
+         return !list.isEmpty() ? (Container) list.get(world.random.nextInt(list.size())) : null;
+     }
+ 
+     private static boolean canMergeItems(ItemStack first, ItemStack second) {
+-        return first.getCount() <= first.getMaxStackSize() && ItemStack.isSameItemSameComponents(first, second);
+        return first.getCount() < first.getMaxStackSize() && ItemStack.isSameItemSameComponents(first, second); // Paper - Perf: Optimize Hoppers; used to return true for full itemstacks?!
+     }
+ 
+     @Override
+diff --git a/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/RandomizableContainerBlockEntity.java
+@@ -0,0 +0,0 @@ public abstract class RandomizableContainerBlockEntity extends BaseContainerBloc
+ 
+     @Override
+     public ItemStack getItem(int slot) {
+-        this.unpackLootTable(null);
+        if (slot == 0) this.unpackLootTable(null); // Paper - Perf: Optimize Hoppers
+         return super.getItem(slot);
+     }
+ 
--- a/feature-patches/1049-Optimize-Voxel-Shape-Merging.patch
+++ b/feature-patches/1049-Optimize-Voxel-Shape-Merging.patch
@ -0,0 +1,123 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 3 May 2020 22:35:09 -0400
+Subject: [PATCH] Optimize Voxel Shape Merging
+
+This method shows up as super hot in profiler, and also a high "self" time.
+
+Upon analyzing, it appears most usages of this method fall down to the final
+else statement of the nasty ternary.
+
+Upon even further analyzation, it appears then the majority of those have a
+consistent list 1.... One with Infinity head and Tails.
+
+First optimization is to detect these infinite states and immediately return that
+VoxelShapeMergerList so we can avoid testing the rest for most cases.
+
+Break the method into 2 to help the JVM promote inlining of this fast path.
+
+Then it was also noticed that VoxelShapeMergerList constructor is also a hotspot
+with a high self time...
+
+Well, knowing that in most cases our list 1 is actualy the same value, it allows
+us to know that with an infinite list1, the result on the merger is essentially
+list2 as the final values.
+
+This let us analyze the 2 potential states (Infinite with 2 sources or 4 sources)
+and compute a deterministic result for the MergerList values.
+
+Additionally, this lets us avoid even allocating new objects for this too, further
+reducing memory usage.
+
+diff --git a/src/main/java/net/minecraft/world/phys/shapes/IndirectMerger.java b/src/main/java/net/minecraft/world/phys/shapes/IndirectMerger.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/phys/shapes/IndirectMerger.java
+++ b/src/main/java/net/minecraft/world/phys/shapes/IndirectMerger.java
+@@ -0,0 +0,0 @@ public class IndirectMerger implements IndexMerger {
+     private final int[] firstIndices;
+     private final int[] secondIndices;
+     private final int resultLength;
+    // Paper start
+    private static final int[] INFINITE_B_1 = new int[]{1, 1};
+    private static final int[] INFINITE_B_0 = new int[]{0, 0};
+    private static final int[] INFINITE_C = new int[]{0, 1};
+    // Paper end
+ 
+     public IndirectMerger(DoubleList first, DoubleList second, boolean includeFirstOnly, boolean includeSecondOnly) {
+         double d = Double.NaN;
+         int i = first.size();
+         int j = second.size();
+         int k = i + j;
+        // Paper start - optimize common path of infinity doublelist
+        int size = first.size();
+        double tail = first.getDouble(size - 1);
+        double head = first.getDouble(0);
+        if (head == Double.NEGATIVE_INFINITY && tail == Double.POSITIVE_INFINITY && !includeFirstOnly && !includeSecondOnly && (size == 2 || size == 4)) {
+            this.result = second.toDoubleArray();
+            this.resultLength = second.size();
+            if (size == 2) {
+                this.firstIndices = INFINITE_B_0;
+            } else {
+                this.firstIndices = INFINITE_B_1;
+            }
+            this.secondIndices = INFINITE_C;
+            return;
+        }
+        // Paper end
+         this.result = new double[k];
+         this.firstIndices = new int[k];
+         this.secondIndices = new int[k];
+diff --git a/src/main/java/net/minecraft/world/phys/shapes/Shapes.java b/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
+++ b/src/main/java/net/minecraft/world/phys/shapes/Shapes.java
+@@ -0,0 +0,0 @@ public final class Shapes {
+     }
+ 
+     @VisibleForTesting
+-    protected static IndexMerger createIndexMerger(int size, DoubleList first, DoubleList second, boolean includeFirst, boolean includeSecond) {
+    private static IndexMerger createIndexMerger(int size, DoubleList first, DoubleList second, boolean includeFirst, boolean includeSecond) { // Paper - private
+        // Paper start - fast track the most common scenario
+        // doublelist is usually a DoubleArrayList with Infinite head/tails that falls to the final else clause
+        // This is actually the most common path, so jump to it straight away
+        if (first.getDouble(0) == Double.NEGATIVE_INFINITY && first.getDouble(first.size() - 1) == Double.POSITIVE_INFINITY) {
+            return new IndirectMerger(first, second, includeFirst, includeSecond);
+        }
+        // Split out rest to hopefully inline the above
+        return lessCommonMerge(size, first, second, includeFirst, includeSecond);
+    }
+
+    private static IndexMerger lessCommonMerge(int size, DoubleList first, DoubleList second, boolean includeFirst, boolean includeSecond) {
+         int i = first.size() - 1;
+         int j = second.size() - 1;
+        // Paper note - Rewrite below as optimized order if instead of nasty ternary
+         if (first instanceof CubePointRange && second instanceof CubePointRange) {
+             long l = lcm(i, j);
+             if ((long)size * l <= 256L) {
+@@ -0,0 +0,0 @@ public final class Shapes {
+             }
+         }
+ 
+-        if (first.getDouble(i) < second.getDouble(0) - 1.0E-7) {
+        // Paper start - Identical happens more often than Disjoint
+        if (i == j && Objects.equals(first, second)) {
+            if (first instanceof IdenticalMerger) {
+                return (IndexMerger) first;
+            } else if (second instanceof IdenticalMerger) {
+                return (IndexMerger) second;
+            }
+            return new IdenticalMerger(first);
+        } else if (first.getDouble(i) < second.getDouble(0) - 1.0E-7) {
+             return new NonOverlappingMerger(first, second, false);
+         } else if (second.getDouble(j) < first.getDouble(0) - 1.0E-7) {
+             return new NonOverlappingMerger(second, first, true);
+         } else {
+-            return (IndexMerger)(i == j && Objects.equals(first, second)
+-                ? new IdenticalMerger(first)
+-                : new IndirectMerger(first, second, includeFirst, includeSecond));
+            return new IndirectMerger(first, second, includeFirst, includeSecond);
+         }
+        // Paper end
+     }
+ 
+     public interface DoubleLineConsumer {
--- a/feature-patches/1050-Optimize-Bit-Operations-by-inlining.patch
+++ b/feature-patches/1050-Optimize-Bit-Operations-by-inlining.patch
@ -0,0 +1,213 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Thu, 4 Jun 2020 02:24:49 -0400
+Subject: [PATCH] Optimize Bit Operations by inlining
+
+Inline bit operations and reduce instruction count to make these hot
+operations faster
+
+diff --git a/src/main/java/net/minecraft/core/BlockPos.java b/src/main/java/net/minecraft/core/BlockPos.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/core/BlockPos.java
+++ b/src/main/java/net/minecraft/core/BlockPos.java
+@@ -0,0 +0,0 @@ public class BlockPos extends Vec3i {
+     };
+     private static final Logger LOGGER = LogUtils.getLogger();
+     public static final BlockPos ZERO = new BlockPos(0, 0, 0);
+-    public static final int PACKED_HORIZONTAL_LENGTH = 1 + Mth.log2(Mth.smallestEncompassingPowerOfTwo(30000000));
+-    public static final int PACKED_Y_LENGTH = 64 - 2 * PACKED_HORIZONTAL_LENGTH;
+-    private static final long PACKED_X_MASK = (1L << PACKED_HORIZONTAL_LENGTH) - 1L;
+-    private static final long PACKED_Y_MASK = (1L << PACKED_Y_LENGTH) - 1L;
+-    private static final long PACKED_Z_MASK = (1L << PACKED_HORIZONTAL_LENGTH) - 1L;
+    // Paper start - Optimize Bit Operations by inlining
+    public static final int PACKED_HORIZONTAL_LENGTH = 26;
+    public static final int PACKED_Y_LENGTH = 12;
+    private static final long PACKED_X_MASK = 67108863;
+    private static final long PACKED_Y_MASK = 4095;
+    private static final long PACKED_Z_MASK = 67108863;
+     private static final int Y_OFFSET = 0;
+-    private static final int Z_OFFSET = PACKED_Y_LENGTH;
+-    private static final int X_OFFSET = PACKED_Y_LENGTH + PACKED_HORIZONTAL_LENGTH;
+-    public static final int MAX_HORIZONTAL_COORDINATE = (1 << PACKED_HORIZONTAL_LENGTH) / 2 - 1;
+    private static final int Z_OFFSET = 12;
+    private static final int X_OFFSET = 38;
+    public static final int MAX_HORIZONTAL_COORDINATE = 33554431;
+    // Paper end - Optimize Bit Operations by inlining
+ 
+     public BlockPos(int x, int y, int z) {
+         super(x, y, z);
+@@ -0,0 +0,0 @@ public class BlockPos extends Vec3i {
+         this(pos.getX(), pos.getY(), pos.getZ());
+     }
+ 
+    public static long getAdjacent(int baseX, int baseY, int baseZ, Direction enumdirection) { return asLong(baseX + enumdirection.getStepX(), baseY + enumdirection.getStepY(), baseZ + enumdirection.getStepZ()); } // Paper
+     public static long offset(long value, Direction direction) {
+         return offset(value, direction.getStepX(), direction.getStepY(), direction.getStepZ());
+     }
+ 
+     public static long offset(long value, int x, int y, int z) {
+-        return asLong(getX(value) + x, getY(value) + y, getZ(value) + z);
+        return asLong((int) (value >> 38) + x, (int) ((value << 52) >> 52) + y, (int) ((value << 26) >> 38) + z); // Paper - simplify/inline
+     }
+ 
+     public static int getX(long packedPos) {
+-        return (int)(packedPos << 64 - X_OFFSET - PACKED_HORIZONTAL_LENGTH >> 64 - PACKED_HORIZONTAL_LENGTH);
+        return (int) (packedPos >> 38); // Paper - simplify/inline
+     }
+ 
+     public static int getY(long packedPos) {
+-        return (int)(packedPos << 64 - PACKED_Y_LENGTH >> 64 - PACKED_Y_LENGTH);
+        return (int) ((packedPos << 52) >> 52); // Paper - simplify/inline
+     }
+ 
+     public static int getZ(long packedPos) {
+-        return (int)(packedPos << 64 - Z_OFFSET - PACKED_HORIZONTAL_LENGTH >> 64 - PACKED_HORIZONTAL_LENGTH);
+        return (int) ((packedPos << 26) >> 38);  // Paper - simplify/inline
+     }
+ 
+     public static BlockPos of(long packedPos) {
+-        return new BlockPos(getX(packedPos), getY(packedPos), getZ(packedPos));
+        return new BlockPos((int) (packedPos >> 38), (int) ((packedPos << 52) >> 52), (int) ((packedPos << 26) >> 38)); // Paper - simplify/inline
+     }
+ 
+     public static BlockPos containing(double x, double y, double z) {
+@@ -0,0 +0,0 @@ public class BlockPos extends Vec3i {
+     }
+ 
+     public static long asLong(int x, int y, int z) {
+-        long l = 0L;
+-        l |= ((long)x & PACKED_X_MASK) << X_OFFSET;
+-        l |= ((long)y & PACKED_Y_MASK) << 0;
+-        return l | ((long)z & PACKED_Z_MASK) << Z_OFFSET;
+        return (((long) x & (long) 67108863) << 38) | (((long) y & (long) 4095)) | (((long) z & (long) 67108863) << 12); // Paper - inline constants and simplify
+     }
+ 
+     public static long getFlatIndex(long y) {
+diff --git a/src/main/java/net/minecraft/core/SectionPos.java b/src/main/java/net/minecraft/core/SectionPos.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/core/SectionPos.java
+++ b/src/main/java/net/minecraft/core/SectionPos.java
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+     }
+ 
+     public static SectionPos of(BlockPos pos) {
+-        return new SectionPos(blockToSectionCoord(pos.getX()), blockToSectionCoord(pos.getY()), blockToSectionCoord(pos.getZ()));
+        return new SectionPos(pos.getX() >> 4, pos.getY() >> 4, pos.getZ() >> 4); // Paper
+     }
+ 
+     public static SectionPos of(ChunkPos chunkPos, int y) {
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+     }
+ 
+     public static SectionPos of(long packed) {
+-        return new SectionPos(x(packed), y(packed), z(packed));
+        return new SectionPos((int) (packed >> 42), (int) (packed << 44 >> 44), (int) (packed << 22 >> 42)); // Paper
+     }
+ 
+     public static SectionPos bottomOf(ChunkAccess chunk) {
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+         return offset(packed, direction.getStepX(), direction.getStepY(), direction.getStepZ());
+     }
+ 
+    // Paper start
+    public static long getAdjacentFromBlockPos(int x, int y, int z, Direction enumdirection) {
+        return (((long) ((x >> 4) + enumdirection.getStepX()) & 4194303L) << 42) | (((long) ((y >> 4) + enumdirection.getStepY()) & 1048575L)) | (((long) ((z >> 4) + enumdirection.getStepZ()) & 4194303L) << 20);
+    }
+    public static long getAdjacentFromSectionPos(int x, int y, int z, Direction enumdirection) {
+        return (((long) (x + enumdirection.getStepX()) & 4194303L) << 42) | (((long) ((y) + enumdirection.getStepY()) & 1048575L)) | (((long) (z + enumdirection.getStepZ()) & 4194303L) << 20);
+    }
+    // Paper end
+     public static long offset(long packed, int x, int y, int z) {
+-        return asLong(x(packed) + x, y(packed) + y, z(packed) + z);
+        return (((long) ((int) (packed >> 42) + x) & 4194303L) << 42) | (((long) ((int) (packed << 44 >> 44) + y) & 1048575L)) | (((long) ((int) (packed << 22 >> 42) + z) & 4194303L) << 20); // Simplify to reduce instruction count
+     }
+ 
+     public static int posToSectionCoord(double coord) {
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+     }
+ 
+     public static short sectionRelativePos(BlockPos pos) {
+-        int i = sectionRelative(pos.getX());
+-        int j = sectionRelative(pos.getY());
+-        int k = sectionRelative(pos.getZ());
+-        return (short)(i << 8 | k << 4 | j << 0);
+        return (short) ((pos.getX() & 15) << 8 | (pos.getZ() & 15) << 4 | pos.getY() & 15); // Paper - simplify/inline
+     }
+ 
+     public static int sectionRelativeX(short packedLocalPos) {
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+         return this.getZ();
+     }
+ 
+-    public int minBlockX() {
+-        return sectionToBlockCoord(this.x());
+    public final int minBlockX() { // Paper - make final
+        return this.getX() << 4; // Paper - inline
+     }
+ 
+-    public int minBlockY() {
+-        return sectionToBlockCoord(this.y());
+    public final int minBlockY() { // Paper - make final
+        return this.getY() << 4; // Paper - inline
+     }
+ 
+-    public int minBlockZ() {
+-        return sectionToBlockCoord(this.z());
+    public int minBlockZ() { // Paper - make final
+        return this.getZ() << 4; // Paper - inline
+     }
+ 
+     public int maxBlockX() {
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+     }
+ 
+     public static long blockToSection(long blockPos) {
+-        return asLong(blockToSectionCoord(BlockPos.getX(blockPos)), blockToSectionCoord(BlockPos.getY(blockPos)), blockToSectionCoord(BlockPos.getZ(blockPos)));
+        // b(a(BlockPosition.b(i)), a(BlockPosition.c(i)), a(BlockPosition.d(i)));
+        return (((long) (int) (blockPos >> 42) & 4194303L) << 42) | (((long) (int) ((blockPos << 52) >> 56) & 1048575L)) | (((long) (int) ((blockPos << 26) >> 42) & 4194303L) << 20); // Simplify to reduce instruction count
+     }
+ 
+     public static long getZeroNode(int x, int z) {
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+         return asLong(blockToSectionCoord(pos.getX()), blockToSectionCoord(pos.getY()), blockToSectionCoord(pos.getZ()));
+     }
+ 
+    // Paper start
+    public static long blockPosAsSectionLong(int i, int j, int k) {
+        return (((long) (i >> 4) & 4194303L) << 42) | (((long) (j >> 4) & 1048575L)) | (((long) (k >> 4) & 4194303L) << 20);
+    }
+    // Paper end
+
+     public static long asLong(int x, int y, int z) {
+-        long l = 0L;
+-        l |= ((long)x & 4194303L) << 42;
+-        l |= ((long)y & 1048575L) << 0;
+-        return l | ((long)z & 4194303L) << 20;
+        return (((long) x & 4194303L) << 42) | (((long) y & 1048575L)) | (((long) z & 4194303L) << 20); // Paper - Simplify to reduce instruction count
+     }
+ 
+     public long asLong() {
+-        return asLong(this.x(), this.y(), this.z());
+        return (((long) getX() & 4194303L) << 42) | (((long) getY() & 1048575L)) | (((long) getZ() & 4194303L) << 20); // Paper - Simplify to reduce instruction count
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public class SectionPos extends Vec3i {
+     }
+ 
+     public static Stream<SectionPos> cube(SectionPos center, int radius) {
+-        int i = center.x();
+-        int j = center.y();
+-        int k = center.z();
+-        return betweenClosedStream(i - radius, j - radius, k - radius, i + radius, j + radius, k + radius);
+        return betweenClosedStream(center.getX() - radius, center.getY() - radius, center.getZ() - radius, center.getX() + radius, center.getY() + radius, center.getZ() + radius); // Paper - simplify/inline
+     }
+ 
+     public static Stream<SectionPos> aroundChunk(ChunkPos center, int radius, int minY, int maxY) {
+-        int i = center.x;
+-        int j = center.z;
+-        return betweenClosedStream(i - radius, minY, j - radius, i + radius, maxY, j + radius);
+        return betweenClosedStream(center.x - radius, minY, center.z - radius, center.x + radius, maxY, center.z + radius); // Paper - simplify/inline
+     }
+ 
+     public static Stream<SectionPos> betweenClosedStream(int minX, int minY, int minZ, int maxX, int maxY, int maxZ) {
--- a/feature-patches/1051-Remove-streams-from-hot-code.patch
+++ b/feature-patches/1051-Remove-streams-from-hot-code.patch
@ -0,0 +1,215 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Josh Roy <10731363+JRoy@users.noreply.github.com>
+Date: Wed, 1 Jul 2020 18:01:49 -0400
+Subject: [PATCH] Remove streams from hot code
+
+Co-authored-by: Bjarne Koll <git@lynxplay.dev>
+Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
+
+diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/GateBehavior.java
+@@ -0,0 +0,0 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+         if (this.hasRequiredMemories(entity)) {
+             this.status = Behavior.Status.RUNNING;
+             this.orderPolicy.apply(this.behaviors);
+-            this.runningPolicy.apply(this.behaviors.stream(), world, entity, time);
+            this.runningPolicy.apply(this.behaviors, world, entity, time); // Paper - Perf: Remove streams from hot code
+             return true;
+         } else {
+             return false;
+@@ -0,0 +0,0 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+ 
+     @Override
+     public final void tickOrStop(ServerLevel world, E entity, long time) {
+-        this.behaviors.stream().filter(task -> task.getStatus() == Behavior.Status.RUNNING).forEach(task -> task.tickOrStop(world, entity, time));
+        // Paper start - Perf: Remove streams from hot code
+        for (final BehaviorControl<? super E> task : this.behaviors) {
+            if (task.getStatus() == Behavior.Status.RUNNING) {
+                task.tickOrStop(world, entity, time);
+            }
+        }
+        // Paper end - Perf: Remove streams from hot code
+         if (this.behaviors.stream().noneMatch(task -> task.getStatus() == Behavior.Status.RUNNING)) {
+             this.doStop(world, entity, time);
+         }
+@@ -0,0 +0,0 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+     @Override
+     public final void doStop(ServerLevel world, E entity, long time) {
+         this.status = Behavior.Status.STOPPED;
+-        this.behaviors.stream().filter(task -> task.getStatus() == Behavior.Status.RUNNING).forEach(task -> task.doStop(world, entity, time));
+-        this.exitErasedMemories.forEach(entity.getBrain()::eraseMemory);
+        // Paper start - Perf: Remove streams from hot code
+        for (final BehaviorControl<? super E> task : this.behaviors) {
+            if (task.getStatus() == Behavior.Status.RUNNING) {
+                task.doStop(world, entity, time);
+            }
+        }
+        for (final MemoryModuleType<?> exitErasedMemory : this.exitErasedMemories) {
+            entity.getBrain().eraseMemory(exitErasedMemory);
+        }
+        // Paper end - Perf: Remove streams from hot code
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public class GateBehavior<E extends LivingEntity> implements BehaviorControl<E>
+ 
+     public static enum RunningPolicy {
+         RUN_ONE {
+            // Paper start - Perf: Remove streams from hot code
+             @Override
+-            public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
+-                tasks.filter(task -> task.getStatus() == Behavior.Status.STOPPED).filter(task -> task.tryStart(world, entity, time)).findFirst();
+            public <E extends LivingEntity> void apply(ShufflingList<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
+                for (final BehaviorControl<? super E> task : tasks) {
+                    if (task.getStatus() == Behavior.Status.STOPPED && task.tryStart(world, entity, time)) {
+                        break;
+                    }
+                }
+                // Paper end - Perf: Remove streams from hot code
+             }
+         },
+         TRY_ALL {
+            // Paper start - Perf: Remove streams from hot code
+             @Override
+-            public <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
+-                tasks.filter(task -> task.getStatus() == Behavior.Status.STOPPED).forEach(task -> task.tryStart(world, entity, time));
+            public <E extends LivingEntity> void apply(ShufflingList<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time) {
+                for (final BehaviorControl<? super E> task : tasks) {
+                    if (task.getStatus() == Behavior.Status.STOPPED) {
+                        task.tryStart(world, entity, time);
+                    }
+                }
+                // Paper end - Perf: Remove streams from hot code
+             }
+         };
+ 
+-        public abstract <E extends LivingEntity> void apply(Stream<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time);
+        public abstract <E extends LivingEntity> void apply(ShufflingList<BehaviorControl<? super E>> tasks, ServerLevel world, E entity, long time); // Paper - Perf: Remove streams from hot code
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java b/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java
+++ b/src/main/java/net/minecraft/world/entity/ai/gossip/GossipContainer.java
+@@ -0,0 +0,0 @@ public class GossipContainer {
+         return this.gossips.entrySet().stream().flatMap(entry -> entry.getValue().unpack(entry.getKey()));
+     }
+ 
+    // Paper start - Perf: Remove streams from hot code
+    private List<GossipContainer.GossipEntry> decompress() {
+        List<GossipContainer.GossipEntry> list = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>();
+        for (Map.Entry<UUID, GossipContainer.EntityGossips> entry : this.gossips.entrySet()) {
+            for (GossipContainer.GossipEntry cur : entry.getValue().decompress(entry.getKey())) {
+                if (cur.weightedValue() != 0) {
+                    list.add(cur);
+                }
+            }
+        }
+        return list;
+    }
+    // Paper end - Perf: Remove streams from hot code
+
+     private Collection<GossipContainer.GossipEntry> selectGossipsForTransfer(RandomSource random, int count) {
+-        List<GossipContainer.GossipEntry> list = this.unpack().toList();
+        List<GossipContainer.GossipEntry> list = this.decompress(); // Paper - Perf: Remove streams from hot code
+         if (list.isEmpty()) {
+             return Collections.emptyList();
+         } else {
+@@ -0,0 +0,0 @@ public class GossipContainer {
+ 
+     public <T> T store(DynamicOps<T> ops) {
+         return GossipContainer.GossipEntry.LIST_CODEC
+-            .encodeStart(ops, this.unpack().toList())
+            .encodeStart(ops, this.decompress()) // Paper - Perf: Remove streams from hot code
+             .resultOrPartial(error -> LOGGER.warn("Failed to serialize gossips: {}", error))
+             .orElseGet(ops::emptyList);
+     }
+@@ -0,0 +0,0 @@ public class GossipContainer {
+         final Object2IntMap<GossipType> entries = new Object2IntOpenHashMap<>();
+ 
+         public int weightedValue(Predicate<GossipType> gossipTypeFilter) {
+-            return this.entries
+-                .object2IntEntrySet()
+-                .stream()
+-                .filter(entry -> gossipTypeFilter.test(entry.getKey()))
+-                .mapToInt(entry -> entry.getIntValue() * entry.getKey().weight)
+-                .sum();
+            // Paper start - Perf: Remove streams from hot code
+            int weight = 0;
+            for (Object2IntMap.Entry<GossipType> entry : entries.object2IntEntrySet()) {
+                if (gossipTypeFilter.test(entry.getKey())) {
+                    weight += entry.getIntValue() * entry.getKey().weight;
+                }
+            }
+            return weight;
+        }
+
+        public List<GossipContainer.GossipEntry> decompress(UUID uuid) {
+            List<GossipContainer.GossipEntry> list = new it.unimi.dsi.fastutil.objects.ObjectArrayList<>();
+            for (Object2IntMap.Entry<GossipType> entry : entries.object2IntEntrySet()) {
+                list.add(new GossipContainer.GossipEntry(uuid, entry.getKey(), entry.getIntValue()));
+            }
+            return list;
+            // Paper end - Perf: Remove streams from hot code
+         }
+ 
+         public Stream<GossipContainer.GossipEntry> unpack(UUID target) {
+diff --git a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+++ b/src/main/java/net/minecraft/world/entity/ai/sensing/NearestItemSensor.java
+@@ -0,0 +0,0 @@ public class NearestItemSensor extends Sensor<Mob> {
+     @Override
+     protected void doTick(ServerLevel world, Mob entity) {
+         Brain<?> brain = entity.getBrain();
+-        List<ItemEntity> list = world.getEntitiesOfClass(ItemEntity.class, entity.getBoundingBox().inflate(32.0, 16.0, 32.0), itemEntity -> true);
+        List<ItemEntity> list = world.getEntitiesOfClass(ItemEntity.class, entity.getBoundingBox().inflate(32.0, 16.0, 32.0), itemEntity -> itemEntity.closerThan(entity, MAX_DISTANCE_TO_WANTED_ITEM) && entity.wantsToPickUp(world, itemEntity.getItem())); // Paper - Perf: Move predicate into getEntities
+         list.sort(Comparator.comparingDouble(entity::distanceToSqr));
+-        Optional<ItemEntity> optional = list.stream()
+-            .filter(itemEntity -> entity.wantsToPickUp(world, itemEntity.getItem()))
+-            .filter(itemEntityx -> itemEntityx.closerThan(entity, 32.0))
+-            .filter(entity::hasLineOfSight)
+-            .findFirst();
+-        brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_WANTED_ITEM, optional);
+        // Paper start - Perf: remove streams from hot code
+        ItemEntity nearest = null;
+        for (ItemEntity entityItem : list) {
+            if (entity.hasLineOfSight(entityItem)) { // Paper - Perf: Move predicate into getEntities
+                nearest = entityItem;
+                break;
+            }
+        }
+        brain.setMemory(MemoryModuleType.NEAREST_VISIBLE_WANTED_ITEM, Optional.ofNullable(nearest));
+        // Paper end - Perf: remove streams from hot code
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java b/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
+++ b/src/main/java/net/minecraft/world/level/levelgen/Beardifier.java
+@@ -0,0 +0,0 @@ public class Beardifier implements DensityFunctions.BeardifierOrMarker {
+         int j = pos.getMinBlockZ();
+         ObjectList<Beardifier.Rigid> objectList = new ObjectArrayList<>(10);
+         ObjectList<JigsawJunction> objectList2 = new ObjectArrayList<>(32);
+-        world.startsForStructure(pos, structure -> structure.terrainAdaptation() != TerrainAdjustment.NONE)
+-            .forEach(
+-                start -> {
+        // Paper start - Perf: Remove streams from hot code
+        for (net.minecraft.world.level.levelgen.structure.StructureStart start : world.startsForStructure(pos, (structure) -> {
+            return structure.terrainAdaptation() != TerrainAdjustment.NONE;
+        })) { // Paper end - Perf: Remove streams from hot code
+                     TerrainAdjustment terrainAdjustment = start.getStructure().terrainAdaptation();
+ 
+                     for (StructurePiece structurePiece : start.getPieces()) {
+@@ -0,0 +0,0 @@ public class Beardifier implements DensityFunctions.BeardifierOrMarker {
+                             }
+                         }
+                     }
+-                }
+-            );
+        } // Paper - Perf: Remove streams from hot code
+         return new Beardifier(objectList.iterator(), objectList2.iterator());
+     }
+ 
--- a/feature-patches/1052-Optimize-Pathfinder-Remove-Streams-Optimized-collect.patch
+++ b/feature-patches/1052-Optimize-Pathfinder-Remove-Streams-Optimized-collect.patch
@ -0,0 +1,134 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Tue, 4 Aug 2020 22:24:15 +0200
+Subject: [PATCH] Optimize Pathfinder - Remove Streams / Optimized collections
+
+I utilized the IDE to convert streams to non streams code, so shouldn't
+be any risk of behavior change. Only did minor optimization of the
+generated code set to remove unnecessary things.
+
+I expect us to just drop this patch on next major update and re-apply
+it with the IDE again and re-apply the collections optimization.
+
+Optimize collection by creating a list instead of a set of the key and value.
+
+This lets us get faster foreach iteration, as well as avoids map lookups on
+the values when needed.
+
+diff --git a/src/main/java/net/minecraft/world/level/pathfinder/PathFinder.java b/src/main/java/net/minecraft/world/level/pathfinder/PathFinder.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/pathfinder/PathFinder.java
+++ b/src/main/java/net/minecraft/world/level/pathfinder/PathFinder.java
+@@ -0,0 +0,0 @@ public class PathFinder {
+         if (node == null) {
+             return null;
+         } else {
+-            Map<Target, BlockPos> map = positions.stream()
+-                .collect(Collectors.toMap(pos -> this.nodeEvaluator.getTarget((double)pos.getX(), (double)pos.getY(), (double)pos.getZ()), Function.identity()));
+            // Paper start - Perf: remove streams and optimize collection
+            List<Map.Entry<Target, BlockPos>> map = Lists.newArrayList();
+            for (final BlockPos pos : positions) {
+                map.add(new java.util.AbstractMap.SimpleEntry<>(this.nodeEvaluator.getTarget(pos.getX(), pos.getY(), pos.getZ()), pos));
+            }
+            // Paper end - Perf: remove streams and optimize collection
+             Path path = this.findPath(node, map, followRange, distance, rangeMultiplier);
+             this.nodeEvaluator.done();
+             return path;
+@@ -0,0 +0,0 @@ public class PathFinder {
+     }
+ 
+     @Nullable
+-    private Path findPath(Node startNode, Map<Target, BlockPos> positions, float followRange, int distance, float rangeMultiplier) {
+    // Paper start - Perf: remove streams and optimize collection
+    private Path findPath(Node startNode, List<Map.Entry<Target, BlockPos>> positions, float followRange, int distance, float rangeMultiplier) {
+         ProfilerFiller profilerFiller = Profiler.get();
+         profilerFiller.push("find_path");
+         profilerFiller.markForCharting(MetricCategory.PATH_FINDING);
+-        Set<Target> set = positions.keySet();
+        // Set<Target> set = positions.keySet();
+         startNode.g = 0.0F;
+-        startNode.h = this.getBestH(startNode, set);
+        startNode.h = this.getBestH(startNode, positions); // Paper - optimize collection
+         startNode.f = startNode.h;
+         this.openSet.clear();
+         this.openSet.insert(startNode);
+-        Set<Node> set2 = ImmutableSet.of();
+        // Set<Node> set2 = ImmutableSet.of(); // Paper - unused - diff on change
+         int i = 0;
+-        Set<Target> set3 = Sets.newHashSetWithExpectedSize(set.size());
+        List<Map.Entry<Target, BlockPos>> entryList = Lists.newArrayListWithExpectedSize(positions.size()); // Paper - optimize collection
+         int j = (int)((float)this.maxVisitedNodes * rangeMultiplier);
+ 
+         while (!this.openSet.isEmpty()) {
+@@ -0,0 +0,0 @@ public class PathFinder {
+             Node node = this.openSet.pop();
+             node.closed = true;
+ 
+-            for (Target target : set) {
+            // Paper start - optimize collection
+            for (int i1 = 0; i1 < positions.size(); i1++) {
+                final Map.Entry<Target, BlockPos> entry = positions.get(i1);
+                Target target = entry.getKey();
+                 if (node.distanceManhattan(target) <= (float)distance) {
+                     target.setReached();
+-                    set3.add(target);
+                    entryList.add(entry);
+                    // Paper end - Perf: remove streams and optimize collection
+                 }
+             }
+ 
+-            if (!set3.isEmpty()) {
+            if (!entryList.isEmpty()) { // Paper - Perf: remove streams and optimize collection; rename
+                 break;
+             }
+ 
+@@ -0,0 +0,0 @@ public class PathFinder {
+                     if (node2.walkedDistance < followRange && (!node2.inOpenSet() || g < node2.g)) {
+                         node2.cameFrom = node;
+                         node2.g = g;
+-                        node2.h = this.getBestH(node2, set) * 1.5F;
+                        node2.h = this.getBestH(node2, positions) * 1.5F; // Paper - Perf: remove streams and optimize collection
+                         if (node2.inOpenSet()) {
+                             this.openSet.changeCost(node2, node2.g + node2.h);
+                         } else {
+@@ -0,0 +0,0 @@ public class PathFinder {
+             }
+         }
+ 
+-        Optional<Path> optional = !set3.isEmpty()
+-            ? set3.stream().map(node -> this.reconstructPath(node.getBestNode(), positions.get(node), true)).min(Comparator.comparingInt(Path::getNodeCount))
+-            : set.stream()
+-                .map(targetx -> this.reconstructPath(targetx.getBestNode(), positions.get(targetx), false))
+-                .min(Comparator.comparingDouble(Path::getDistToTarget).thenComparingInt(Path::getNodeCount));
+        // Paper start - Perf: remove streams and optimize collection
+        Path best = null;
+        boolean entryListIsEmpty = entryList.isEmpty();
+        Comparator<Path> comparator = entryListIsEmpty ? Comparator.comparingInt(Path::getNodeCount)
+            : Comparator.comparingDouble(Path::getDistToTarget).thenComparingInt(Path::getNodeCount);
+        for (Map.Entry<Target, BlockPos> entry : entryListIsEmpty ? positions : entryList) {
+            Path path = this.reconstructPath(entry.getKey().getBestNode(), entry.getValue(), !entryListIsEmpty);
+            if (best == null || comparator.compare(path, best) < 0)
+                best = path;
+        }
+         profilerFiller.pop();
+-        return optional.isEmpty() ? null : optional.get();
+        return best;
+        // Paper end - Perf: remove streams and optimize collection
+     }
+ 
+     protected float distance(Node a, Node b) {
+         return a.distanceTo(b);
+     }
+ 
+-    private float getBestH(Node node, Set<Target> targets) {
+    private float getBestH(Node node, List<Map.Entry<Target, BlockPos>> targets) { // Paper - Perf: remove streams and optimize collection; Set<Target> -> List<Map.Entry<Target, BlockPos>>
+         float f = Float.MAX_VALUE;
+ 
+-        for (Target target : targets) {
+        // Paper start - Perf: remove streams and optimize collection
+        for (int i = 0, targetsSize = targets.size(); i < targetsSize; i++) {
+            final Target target = targets.get(i).getKey();
+            // Paper end - Perf: remove streams and optimize collection
+             float g = node.distanceTo(target);
+             target.updateBest(g, node);
+             f = Math.min(g, f);
--- a/feature-patches/1053-Fix-entity-type-tags-suggestions-in-selectors.patch
+++ b/feature-patches/1053-Fix-entity-type-tags-suggestions-in-selectors.patch
@ -0,0 +1,152 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Sun, 22 Aug 2021 15:21:57 -0700
+Subject: [PATCH] Fix entity type tags suggestions in selectors
+
+This would really be better as a client fix because just to fix it
+all EntityArguments have been told to ask the server for completions
+when if this was fixed on the client, that wouldn't be needed.
+
+Mojira Issue: https://bugs.mojang.com/browse/MC-235045
+
+diff --git a/src/main/java/net/minecraft/commands/CommandSourceStack.java b/src/main/java/net/minecraft/commands/CommandSourceStack.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/CommandSourceStack.java
+++ b/src/main/java/net/minecraft/commands/CommandSourceStack.java
+@@ -0,0 +0,0 @@ public class CommandSourceStack implements ExecutionCommandSource<CommandSourceS
+         return this.source.getBukkitSender(this);
+     }
+     // CraftBukkit end
+    // Paper start - tell clients to ask server for suggestions for EntityArguments
+    @Override
+    public Collection<String> getSelectedEntities() {
+        if (io.papermc.paper.configuration.GlobalConfiguration.get().commands.fixTargetSelectorTagCompletion && this.source instanceof ServerPlayer player) {
+            final Entity cameraEntity = player.getCamera();
+            final double pickDistance = player.entityInteractionRange();
+            final Vec3 min = cameraEntity.getEyePosition(1.0F);
+            final Vec3 viewVector = cameraEntity.getViewVector(1.0F);
+            final Vec3 max = min.add(viewVector.x * pickDistance, viewVector.y * pickDistance, viewVector.z * pickDistance);
+            final net.minecraft.world.phys.AABB aabb = cameraEntity.getBoundingBox().expandTowards(viewVector.scale(pickDistance)).inflate(1.0D, 1.0D, 1.0D);
+            final net.minecraft.world.phys.EntityHitResult hitResult = net.minecraft.world.entity.projectile.ProjectileUtil.getEntityHitResult(cameraEntity, min, max, aabb, (e) -> !e.isSpectator() && e.isPickable(), pickDistance * pickDistance);
+            return hitResult != null ? java.util.Collections.singletonList(hitResult.getEntity().getStringUUID()) : SharedSuggestionProvider.super.getSelectedEntities();
+        }
+        return SharedSuggestionProvider.super.getSelectedEntities();
+    }
+    // Paper end - tell clients to ask server for suggestions for EntityArguments
+ }
+diff --git a/src/main/java/net/minecraft/commands/Commands.java b/src/main/java/net/minecraft/commands/Commands.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/Commands.java
+++ b/src/main/java/net/minecraft/commands/Commands.java
+@@ -0,0 +0,0 @@ public class Commands {
+         Iterator iterator = children.iterator();
+         // Paper end - Perf: Async command map building
+ 
+        boolean registeredAskServerSuggestionsForTree = false; // Paper - tell clients to ask server for suggestions for EntityArguments
+         while (iterator.hasNext()) {
+             CommandNode<CommandSourceStack> commandnode2 = (CommandNode) iterator.next();
+             // Paper start - Brigadier API
+@@ -0,0 +0,0 @@ public class Commands {
+ 
+                     if (requiredargumentbuilder.getSuggestionsProvider() != null) {
+                         requiredargumentbuilder.suggests(SuggestionProviders.safelySwap(requiredargumentbuilder.getSuggestionsProvider()));
+                        // Paper start - tell clients to ask server for suggestions for EntityArguments
+                        registeredAskServerSuggestionsForTree = requiredargumentbuilder.getSuggestionsProvider() == net.minecraft.commands.synchronization.SuggestionProviders.ASK_SERVER;
+                    } else if (io.papermc.paper.configuration.GlobalConfiguration.get().commands.fixTargetSelectorTagCompletion && !registeredAskServerSuggestionsForTree && requiredargumentbuilder.getType() instanceof net.minecraft.commands.arguments.EntityArgument) {
+                        requiredargumentbuilder.suggests(requiredargumentbuilder.getType()::listSuggestions);
+                        registeredAskServerSuggestionsForTree = true; // You can only
+                        // Paper end - tell clients to ask server for suggestions for EntityArguments
+                     }
+                 }
+ 
+diff --git a/src/main/java/net/minecraft/commands/arguments/EntityArgument.java b/src/main/java/net/minecraft/commands/arguments/EntityArgument.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/arguments/EntityArgument.java
+++ b/src/main/java/net/minecraft/commands/arguments/EntityArgument.java
+@@ -0,0 +0,0 @@ public class EntityArgument implements ArgumentType<EntitySelector> {
+             final boolean permission = object instanceof CommandSourceStack stack
+                     ? stack.bypassSelectorPermissions || stack.hasPermission(2, "minecraft.command.selector")
+                     : icompletionprovider.hasPermission(2);
+-            EntitySelectorParser argumentparserselector = new EntitySelectorParser(stringreader, permission);
+            EntitySelectorParser argumentparserselector = new EntitySelectorParser(stringreader, permission, true); // Paper - tell clients to ask server for suggestions for EntityArguments
+             // Paper end - Fix EntityArgument permissions
+ 
+             try {
+@@ -0,0 +0,0 @@ public class EntityArgument implements ArgumentType<EntitySelector> {
+             }
+ 
+             return argumentparserselector.fillSuggestions(suggestionsbuilder, (suggestionsbuilder1) -> {
+-                Collection<String> collection = icompletionprovider.getOnlinePlayerNames();
+                // Paper start - tell clients to ask server for suggestions for EntityArguments
+                final Collection<String> collection;
+                if (icompletionprovider instanceof CommandSourceStack commandSourceStack && commandSourceStack.getEntity() instanceof ServerPlayer sourcePlayer) {
+                    collection = new java.util.ArrayList<>();
+                    for (final ServerPlayer player : commandSourceStack.getServer().getPlayerList().getPlayers()) {
+                        if (sourcePlayer.getBukkitEntity().canSee(player.getBukkitEntity())) {
+                            collection.add(player.getGameProfile().getName());
+                        }
+                    }
+                } else {
+                    collection = icompletionprovider.getOnlinePlayerNames();
+                }
+                // Paper end - tell clients to ask server for suggestions for EntityArguments
+                 Iterable<String> iterable = this.playersOnly ? collection : Iterables.concat(collection, icompletionprovider.getSelectedEntities());
+ 
+                 SharedSuggestionProvider.suggest((Iterable) iterable, suggestionsbuilder1);
+diff --git a/src/main/java/net/minecraft/commands/arguments/selector/EntitySelectorParser.java b/src/main/java/net/minecraft/commands/arguments/selector/EntitySelectorParser.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/arguments/selector/EntitySelectorParser.java
+++ b/src/main/java/net/minecraft/commands/arguments/selector/EntitySelectorParser.java
+@@ -0,0 +0,0 @@ public class EntitySelectorParser {
+     private boolean hasScores;
+     private boolean hasAdvancements;
+     private boolean usesSelectors;
+    public boolean parsingEntityArgumentSuggestions; // Paper - tell clients to ask server for suggestions for EntityArguments
+ 
+     public EntitySelectorParser(StringReader reader, boolean atAllowed) {
+        // Paper start - tell clients to ask server for suggestions for EntityArguments
+        this(reader, atAllowed, false);
+    }
+    public EntitySelectorParser(StringReader reader, boolean atAllowed, boolean parsingEntityArgumentSuggestions) {
+        this.parsingEntityArgumentSuggestions = parsingEntityArgumentSuggestions;
+        // Paper end - tell clients to ask server for suggestions for EntityArguments
+         this.distance = MinMaxBounds.Doubles.ANY;
+         this.level = MinMaxBounds.Ints.ANY;
+         this.rotX = WrappedMinMaxBounds.ANY;
+diff --git a/src/main/java/net/minecraft/commands/arguments/selector/options/EntitySelectorOptions.java b/src/main/java/net/minecraft/commands/arguments/selector/options/EntitySelectorOptions.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/commands/arguments/selector/options/EntitySelectorOptions.java
+++ b/src/main/java/net/minecraft/commands/arguments/selector/options/EntitySelectorOptions.java
+@@ -0,0 +0,0 @@ public class EntitySelectorOptions {
+     public static final DynamicCommandExceptionType ERROR_ENTITY_TYPE_INVALID = new DynamicCommandExceptionType(
+         entity -> Component.translatableEscape("argument.entity.options.type.invalid", entity)
+     );
+    // Paper start - tell clients to ask server for suggestions for EntityArguments
+    public static final DynamicCommandExceptionType ERROR_ENTITY_TAG_INVALID = new DynamicCommandExceptionType((object) -> {
+        return io.papermc.paper.adventure.PaperAdventure
+            .asVanilla(net.kyori.adventure.text.Component
+                .text("Invalid or unknown entity type tag '" + object + "'")
+                .hoverEvent(net.kyori.adventure.text.event.HoverEvent
+                    .showText(net.kyori.adventure.text.Component
+                        .text("You can disable this error in 'paper.yml'")
+                    )
+                )
+            );
+    });
+    // Paper end - tell clients to ask server for suggestions for EntityArguments
+ 
+     private static void register(String id, EntitySelectorOptions.Modifier handler, Predicate<EntitySelectorParser> condition, Component description) {
+         OPTIONS.put(id, new EntitySelectorOptions.Option(handler, condition, description));
+@@ -0,0 +0,0 @@ public class EntitySelectorOptions {
+ 
+                         if (reader.isTag()) {
+                             TagKey<EntityType<?>> tagKey = TagKey.create(Registries.ENTITY_TYPE, ResourceLocation.read(reader.getReader()));
+                            // Paper start - tell clients to ask server for suggestions for EntityArguments; throw error if invalid entity tag (only on suggestions to keep cmd success behavior)
+                            if (reader.parsingEntityArgumentSuggestions && io.papermc.paper.configuration.GlobalConfiguration.get().commands.fixTargetSelectorTagCompletion && net.minecraft.core.registries.BuiltInRegistries.ENTITY_TYPE.get(tagKey).isEmpty()) {
+                                reader.getReader().setCursor(i);
+                                throw ERROR_ENTITY_TAG_INVALID.createWithContext(reader.getReader(), tagKey);
+                            }
+                            // Paper end - tell clients to ask server for suggestions for EntityArguments
+                             reader.addPredicate(entity -> entity.getType().is(tagKey) != bl);
+                         } else {
+                             ResourceLocation resourceLocation = ResourceLocation.read(reader.getReader());
--- a/feature-patches/1054-Handle-Oversized-block-entities-in-chunks.patch
+++ b/feature-patches/1054-Handle-Oversized-block-entities-in-chunks.patch
@ -0,0 +1,64 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Wed, 6 May 2020 05:00:57 -0400
+Subject: [PATCH] Handle Oversized block entities in chunks
+
+Splits out Extra Packets if too many TE's are encountered to prevent
+creating too large of a packet to sed.
+
+Co-authored-by: Spottedleaf <Spottedleaf@users.noreply.github.com>
+
+diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkPacketData.java
+@@ -0,0 +0,0 @@ public class ClientboundLevelChunkPacketData {
+     private final CompoundTag heightmaps;
+     private final byte[] buffer;
+     private final List<ClientboundLevelChunkPacketData.BlockEntityInfo> blockEntitiesData;
+    // Paper start - Handle oversized block entities in chunks
+    private final java.util.List<net.minecraft.network.protocol.Packet<?>> extraPackets = new java.util.ArrayList<>();
+    private static final int TE_LIMIT = Integer.getInteger("Paper.excessiveTELimit", 750);
+
+    public List<net.minecraft.network.protocol.Packet<?>> getExtraPackets() {
+        return this.extraPackets;
+    }
+    // Paper end - Handle oversized block entities in chunks
+ 
+     // Paper start - Anti-Xray - Add chunk packet info
+     @Deprecated @io.papermc.paper.annotation.DoNotUse public ClientboundLevelChunkPacketData(LevelChunk chunk) { this(chunk, null); }
+@@ -0,0 +0,0 @@ public class ClientboundLevelChunkPacketData {
+         extractChunkData(new FriendlyByteBuf(this.getWriteBuffer()), chunk, chunkPacketInfo);
+         // Paper end
+         this.blockEntitiesData = Lists.newArrayList();
+        int totalTileEntities = 0; // Paper - Handle oversized block entities in chunks
+ 
+         for (Entry<BlockPos, BlockEntity> entry2 : chunk.getBlockEntities().entrySet()) {
+            // Paper start - Handle oversized block entities in chunks
+            if (++totalTileEntities > TE_LIMIT) {
+                var packet = entry2.getValue().getUpdatePacket();
+                if (packet != null) {
+                    this.extraPackets.add(packet);
+                    continue;
+                }
+            }
+            // Paper end - Handle oversized block entities in chunks
+             this.blockEntitiesData.add(ClientboundLevelChunkPacketData.BlockEntityInfo.create(entry2.getValue()));
+         }
+     }
+diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundLevelChunkWithLightPacket.java
+@@ -0,0 +0,0 @@ public class ClientboundLevelChunkWithLightPacket implements Packet<ClientGamePa
+     public ClientboundLightUpdatePacketData getLightData() {
+         return this.lightData;
+     }
+
+    // Paper start - Handle oversized block entities in chunks
+    @Override
+    public java.util.List<Packet<?>> getExtraPackets() {
+        return this.chunkData.getExtraPackets();
+    }
+    // Paper end - Handle oversized block entities in chunks
+ }
--- a/feature-patches/1055-Check-distance-in-entity-interactions.patch
+++ b/feature-patches/1055-Check-distance-in-entity-interactions.patch
@ -0,0 +1,68 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Mon, 2 Aug 2021 10:10:40 +0200
+Subject: [PATCH] Check distance in entity interactions
+
+
+diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/Util.java
+++ b/src/main/java/net/minecraft/Util.java
+@@ -0,0 +0,0 @@ public class Util {
+         .filter(fileSystemProvider -> fileSystemProvider.getScheme().equalsIgnoreCase("jar"))
+         .findFirst()
+         .orElseThrow(() -> new IllegalStateException("No jar file system provider found"));
+    public static final double COLLISION_EPSILON = 1.0E-7; // Paper - Check distance in entity interactions
+     private static Consumer<String> thePauser = message -> {
+     };
+ 
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                 if (!source.is(DamageTypeTags.IS_PROJECTILE)) {
+                     Entity entity = source.getDirectEntity();
+ 
+-                    if (entity instanceof LivingEntity) {
+                    if (entity instanceof LivingEntity && entity.distanceToSqr(this) <= (200.0D * 200.0D)) { // Paper - Check distance in entity interactions
+                         LivingEntity entityliving = (LivingEntity) entity;
+ 
+                         this.blockUsingShield(entityliving);
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                         d0 = source.getSourcePosition().x() - this.getX();
+                         d1 = source.getSourcePosition().z() - this.getZ();
+                     }
+                    // Paper start - Check distance in entity interactions; see for loop in knockback method
+                    if (Math.abs(d0) > 200) {
+                        d0 = Math.random() - Math.random();
+                    }
+                    if (Math.abs(d1) > 200) {
+                        d1 = Math.random() - Math.random();
+                    }
+                    // Paper end - Check distance in entity interactions
+ 
+                     this.knockback(0.4000000059604645D, d0, d1, entity1, entity1 == null ? io.papermc.paper.event.entity.EntityKnockbackEvent.Cause.DAMAGE : io.papermc.paper.event.entity.EntityKnockbackEvent.Cause.ENTITY_ATTACK); // CraftBukkit // Paper - knockback events
+                     if (!flag) {
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                 this.hurtCurrentlyUsedShield((float) -event.getDamage(DamageModifier.BLOCKING));
+                 Entity entity = damagesource.getDirectEntity();
+ 
+-                if (!damagesource.is(DamageTypeTags.IS_PROJECTILE) && entity instanceof LivingEntity) { // Paper - Fix shield disable inconsistency
+                if (!damagesource.is(DamageTypeTags.IS_PROJECTILE) && entity instanceof LivingEntity && entity.distanceToSqr(this) <= (200.0D * 200.0D)) { // Paper - Fix shield disable inconsistency & Check distance in entity interactions
+                     this.blockUsingShield((LivingEntity) entity);
+                 }
+             }
+diff --git a/src/main/java/net/minecraft/world/entity/vehicle/AbstractBoat.java b/src/main/java/net/minecraft/world/entity/vehicle/AbstractBoat.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/vehicle/AbstractBoat.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/AbstractBoat.java
+@@ -0,0 +0,0 @@ public abstract class AbstractBoat extends VehicleEntity implements Leashable {
+             double d2 = (double) (this.getWaterLevelAbove() - this.getBbHeight()) + 0.101D;
+ 
+             if (this.level().noCollision(this, this.getBoundingBox().move(0.0D, d2 - this.getY(), 0.0D))) {
+-                this.setPos(this.getX(), d2, this.getZ());
+                this.move(MoverType.SELF, new Vec3(0.0D, d2 - this.getY(), 0.0D)); // Paper - Check distance in entity interactions // TODO Still needed??
+                 this.setDeltaMovement(this.getDeltaMovement().multiply(1.0D, 0.0D, 1.0D));
+                 this.lastYd = 0.0D;
+             }
--- a/feature-patches/1056-optimize-dirt-and-snow-spreading.patch
+++ b/feature-patches/1056-optimize-dirt-and-snow-spreading.patch
@ -0,0 +1,78 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: lukas81298 <lukas81298@gommehd.net>
+Date: Fri, 22 Jan 2021 21:50:18 +0100
+Subject: [PATCH] optimize dirt and snow spreading
+
+
+diff --git a/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java b/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
+++ b/src/main/java/net/minecraft/world/level/block/SpreadingSnowyDirtBlock.java
+@@ -0,0 +0,0 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
+     }
+ 
+     private static boolean canBeGrass(BlockState state, LevelReader world, BlockPos pos) {
+    // Paper start - Perf: optimize dirt and snow spreading
+        return canBeGrass(world.getChunk(pos), state, world, pos);
+    }
+    private static boolean canBeGrass(net.minecraft.world.level.chunk.ChunkAccess chunk, BlockState state, LevelReader world, BlockPos pos) {
+    // Paper end - Perf: optimize dirt and snow spreading
+         BlockPos blockposition1 = pos.above();
+-        BlockState iblockdata1 = world.getBlockState(blockposition1);
+        BlockState iblockdata1 = chunk.getBlockState(blockposition1); // Paper - Perf: optimize dirt and snow spreading
+ 
+         if (iblockdata1.is(Blocks.SNOW) && (Integer) iblockdata1.getValue(SnowLayerBlock.LAYERS) == 1) {
+             return true;
+@@ -0,0 +0,0 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
+     protected abstract MapCodec<? extends SpreadingSnowyDirtBlock> codec();
+ 
+     private static boolean canPropagate(BlockState state, LevelReader world, BlockPos pos) {
+    // Paper start - Perf: optimize dirt and snow spreading
+        return canPropagate(world.getChunk(pos), state, world, pos);
+    }
+
+    private static boolean canPropagate(net.minecraft.world.level.chunk.ChunkAccess chunk, BlockState state, LevelReader world, BlockPos pos) {
+    // Paper end - Perf: optimize dirt and snow spreading
+         BlockPos blockposition1 = pos.above();
+ 
+-        return SpreadingSnowyDirtBlock.canBeGrass(state, world, pos) && !world.getFluidState(blockposition1).is(FluidTags.WATER);
+        return SpreadingSnowyDirtBlock.canBeGrass(chunk, state, world, pos) && !chunk.getFluidState(blockposition1).is(FluidTags.WATER); // Paper - Perf: optimize dirt and snow spreading
+     }
+ 
+     @Override
+     protected void randomTick(BlockState state, ServerLevel world, BlockPos pos, RandomSource random) {
+         if (this instanceof GrassBlock && world.paperConfig().tickRates.grassSpread != 1 && (world.paperConfig().tickRates.grassSpread < 1 || (net.minecraft.server.MinecraftServer.currentTick + pos.hashCode()) % world.paperConfig().tickRates.grassSpread != 0)) { return; } // Paper - Configurable random tick rates for blocks
+-        if (!SpreadingSnowyDirtBlock.canBeGrass(state, world, pos)) {
+        // Paper start - Perf: optimize dirt and snow spreading
+        final net.minecraft.world.level.chunk.ChunkAccess cachedBlockChunk = world.getChunkIfLoaded(pos);
+        if (cachedBlockChunk == null) { // Is this needed?
+            return;
+        }
+        if (!SpreadingSnowyDirtBlock.canBeGrass(cachedBlockChunk, state, world, pos)) {
+            // Paper end - Perf: optimize dirt and snow spreading
+             // CraftBukkit start
+             if (org.bukkit.craftbukkit.event.CraftEventFactory.callBlockFadeEvent(world, pos, Blocks.DIRT.defaultBlockState()).isCancelled()) {
+                 return;
+@@ -0,0 +0,0 @@ public abstract class SpreadingSnowyDirtBlock extends SnowyDirtBlock {
+                 for (int i = 0; i < 4; ++i) {
+                     BlockPos blockposition1 = pos.offset(random.nextInt(3) - 1, random.nextInt(5) - 3, random.nextInt(3) - 1);
+ 
+-                    if (world.getBlockState(blockposition1).is(Blocks.DIRT) && SpreadingSnowyDirtBlock.canPropagate(iblockdata1, world, blockposition1)) {
+-                        org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(world, pos, blockposition1, (BlockState) iblockdata1.setValue(SpreadingSnowyDirtBlock.SNOWY, isSnowySetting(world.getBlockState(blockposition1.above())))); // CraftBukkit
+                    // Paper start - Perf: optimize dirt and snow spreading
+                    if (pos.getX() == blockposition1.getX() && pos.getY() == blockposition1.getY() && pos.getZ() == blockposition1.getZ()) {
+                        continue;
+                    }
+
+                    final net.minecraft.world.level.chunk.ChunkAccess access;
+                    if (cachedBlockChunk.locX == blockposition1.getX() >> 4 && cachedBlockChunk.locZ == blockposition1.getZ() >> 4) {
+                        access = cachedBlockChunk;
+                    } else {
+                        access = world.getChunkAt(blockposition1);
+                    }
+                    if (access.getBlockState(blockposition1).is(Blocks.DIRT) && SpreadingSnowyDirtBlock.canPropagate(access, iblockdata1, world, blockposition1)) {
+                        org.bukkit.craftbukkit.event.CraftEventFactory.handleBlockSpreadEvent(world, pos, blockposition1, (BlockState) iblockdata1.setValue(SpreadingSnowyDirtBlock.SNOWY, isSnowySetting(access.getBlockState(blockposition1.above())))); // CraftBukkit
+                    // Paper end - Perf: optimize dirt and snow spreading
+                     }
+                 }
+             }
--- a/feature-patches/1057-Optimise-getChunkAt-calls-for-loaded-chunks.patch
+++ b/feature-patches/1057-Optimise-getChunkAt-calls-for-loaded-chunks.patch
@ -0,0 +1,60 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sat, 25 Jan 2020 17:04:35 -0800
+Subject: [PATCH] Optimise getChunkAt calls for loaded chunks
+
+bypass the need to get a player chunk, then get the either,
+then unwrap it...
+
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource {
+                 return this.getChunk(x, z, leastStatus, create);
+             }, this.mainThreadProcessor).join();
+         } else {
+            // Paper start - Perf: Optimise getChunkAt calls for loaded chunks
+            LevelChunk ifLoaded = this.getChunkAtIfLoadedMainThread(x, z);
+            if (ifLoaded != null) {
+                return ifLoaded;
+            }
+            // Paper end - Perf: Optimise getChunkAt calls for loaded chunks
+             ProfilerFiller gameprofilerfiller = Profiler.get();
+ 
+             gameprofilerfiller.incrementCounter("getChunk");
+@@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource {
+         if (Thread.currentThread() != this.mainThread) {
+             return null;
+         } else {
+-            Profiler.get().incrementCounter("getChunkNow");
+-            long k = ChunkPos.asLong(chunkX, chunkZ);
+-
+-            ChunkAccess ichunkaccess;
+-
+-            for (int l = 0; l < 4; ++l) {
+-                if (k == this.lastChunkPos[l] && this.lastChunkStatus[l] == ChunkStatus.FULL) {
+-                    ichunkaccess = this.lastChunk[l];
+-                    return ichunkaccess instanceof LevelChunk ? (LevelChunk) ichunkaccess : null;
+-                }
+-            }
+-
+-            ChunkHolder playerchunk = this.getVisibleChunkIfPresent(k);
+-
+-            if (playerchunk == null) {
+-                return null;
+-            } else {
+-                ichunkaccess = playerchunk.getChunkIfPresent(ChunkStatus.FULL);
+-                if (ichunkaccess != null) {
+-                    this.storeInCache(k, ichunkaccess, ChunkStatus.FULL);
+-                    if (ichunkaccess instanceof LevelChunk) {
+-                        return (LevelChunk) ichunkaccess;
+-                    }
+-                }
+-
+-                return null;
+-            }
+            return this.getChunkAtIfLoadedMainThread(chunkX, chunkZ); // Paper - Perf: Optimise getChunkAt calls for loaded chunks
+         }
+     }
+ 
--- a/feature-patches/1058-Rewrite-dataconverter-system.patch
+++ b/feature-patches/1058-Rewrite-dataconverter-system.patch
--- a/feature-patches/1059-Moonrise-optimisation-patches.patch
+++ b/feature-patches/1059-Moonrise-optimisation-patches.patch
--- a/feature-patches/1060-Only-write-chunk-data-to-disk-if-it-serializes-witho.patch
+++ b/feature-patches/1060-Only-write-chunk-data-to-disk-if-it-serializes-witho.patch
@ -0,0 +1,129 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 19 Dec 2021 09:13:41 -0800
+Subject: [PATCH] Only write chunk data to disk if it serializes without
+ throwing
+
+This ensures at least a valid version of the chunk exists
+on disk, even if outdated
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+ 
+     }
+     // Paper end
+    public static final int MAX_CHUNK_SIZE = 500 * 1024 * 1024; // Paper - don't write garbage data to disk if writing serialization fails
+     private class ChunkBuffer extends ByteArrayOutputStream implements ca.spottedleaf.moonrise.patches.chunk_system.storage.ChunkSystemChunkBuffer { // Paper - rewrite chunk system
+ 
+         private final ChunkPos pos;
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+             super.write(RegionFile.this.version.getId());
+             this.pos = chunkcoordintpair;
+         }
+        // Paper start - don't write garbage data to disk if writing serialization fails
+        @Override
+        public void write(final int b) {
+            if (this.count > MAX_CHUNK_SIZE) {
+                throw new RegionFileStorage.RegionFileSizeException("Region file too large: " + this.count);
+            }
+            super.write(b);
+        }
+
+        @Override
+        public void write(final byte[] b, final int off, final int len) {
+            if (this.count + len > MAX_CHUNK_SIZE) {
+                throw new RegionFileStorage.RegionFileSizeException("Region file too large: " + (this.count + len));
+            }
+            super.write(b, off, len);
+        }
+        // Paper end - don't write garbage data to disk if writing serialization fails
+ 
+         public void close() throws IOException {
+             ByteBuffer bytebuffer = ByteBuffer.wrap(this.buf, 0, this.count);
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+@@ -0,0 +0,0 @@ import net.minecraft.world.level.ChunkPos;
+ 
+ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise.patches.chunk_system.io.ChunkSystemRegionFileStorage { // Paper - rewrite chunk system
+ 
+    private static final org.slf4j.Logger LOGGER = com.mojang.logging.LogUtils.getLogger(); // Paper
+
+     public static final String ANVIL_EXTENSION = ".mca";
+     private static final int MAX_CACHE_SIZE = 256;
+     public final Long2ObjectLinkedOpenHashMap<RegionFile> regionCache = new Long2ObjectLinkedOpenHashMap();
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise
+         // (and, the regionfile parameter is unused for writing until the write call)
+         final ca.spottedleaf.moonrise.patches.chunk_system.io.MoonriseRegionFileIO.RegionDataController.WriteData writeData = ((ca.spottedleaf.moonrise.patches.chunk_system.storage.ChunkSystemRegionFile)regionFile).moonrise$startWrite(compound, pos);
+ 
+        try { // Paper - implement RegionFileSizeException
+         try {
+             NbtIo.write(compound, writeData.output());
+         } finally {
+             writeData.output().close();
+         }
+        // Paper start - implement RegionFileSizeException
+        } catch (final RegionFileSizeException ex) {
+            // note: it's OK if close() is called, as close() here will not issue a write to the RegionFile
+            // see startWrite
+            final int maxSize = RegionFile.MAX_CHUNK_SIZE / (1024 * 1024);
+            LOGGER.error("Chunk at (" + chunkX + "," + chunkZ + ") in regionfile '" + regionFile.getPath().toString() + "' exceeds max size of " + maxSize + "MiB, it has been deleted from disk.");
+            return new ca.spottedleaf.moonrise.patches.chunk_system.io.MoonriseRegionFileIO.RegionDataController.WriteData(
+                compound, ca.spottedleaf.moonrise.patches.chunk_system.io.MoonriseRegionFileIO.RegionDataController.WriteData.WriteResult.DELETE,
+                null, null
+            );
+        }
+        // Paper end - implement RegionFileSizeException
+ 
+         return writeData;
+     }
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise
+             try {
+                 NbtIo.write(nbt, (DataOutput) dataoutputstream);
+                 regionfile.setOversized(pos.x, pos.z, false); // Paper - We don't do this anymore, mojang stores differently, but clear old meta flag if it exists to get rid of our own meta file once last oversized is gone
+                // Paper start - don't write garbage data to disk if writing serialization fails
+                dataoutputstream.close(); // Only write if successful
+            } catch (final RegionFileSizeException ex) {
+                regionfile.clear(pos);
+                final int maxSize = RegionFile.MAX_CHUNK_SIZE / (1024 * 1024);
+                LOGGER.error("Chunk at (" + pos.x + "," + pos.z + ") in regionfile '" + regionfile.getPath().toString() + "' exceeds max size of " + maxSize + "MiB, it has been deleted from disk.");
+                return;
+                // Paper end - don't write garbage data to disk if writing serialization fails
+             } catch (Throwable throwable) {
+                 if (dataoutputstream != null) {
+                     try {
+-                        dataoutputstream.close();
+                        //dataoutputstream.close(); // Paper - don't write garbage data to disk if writing serialization fails
+                     } catch (Throwable throwable1) {
+                         throwable.addSuppressed(throwable1);
+                     }
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise
+ 
+                 throw throwable;
+             }
+-
+-            if (dataoutputstream != null) {
+-                dataoutputstream.close();
+-            }
+            // Paper - don't write garbage data to disk if writing serialization fails; move into try block to only write if successfully serialized
+         }
+ 
+     }
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise
+     public RegionStorageInfo info() {
+         return this.info;
+     }
+
+    // Paper start - don't write garbage data to disk if writing serialization fails
+    public static final class RegionFileSizeException extends RuntimeException {
+
+        public RegionFileSizeException(String message) {
+            super(message);
+        }
+    }
+    // Paper end - don't write garbage data to disk if writing serialization fails
+ }
--- a/feature-patches/1061-Improved-Watchdog-Support.patch
+++ b/feature-patches/1061-Improved-Watchdog-Support.patch
@ -0,0 +1,455 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <aikar@aikar.co>
+Date: Sun, 12 Apr 2020 15:50:48 -0400
+Subject: [PATCH] Improved Watchdog Support
+
+Forced Watchdog Crash support and Improve Async Shutdown
+
+If the request to shut down the server is received while we are in
+a watchdog hang, immediately treat it as a crash and begin the shutdown
+process. Shutdown process is now improved to also shutdown cleanly when
+not using restart scripts either.
+
+If a server is deadlocked, a server owner can send SIGUP (or any other signal
+the JVM understands to shut down as it currently does) and the watchdog
+will no longer need to wait until the full timeout, allowing you to trigger
+a close process and try to shut the server down gracefully, saving player and
+world data.
+
+Previously there was no way to trigger this outside of waiting for a full watchdog
+timeout, which may be set to a really long time...
+
+Additionally, fix everything to do with shutting the server down asynchronously.
+
+Previously, nearly everything about the process was fragile and unsafe. Main might
+not have actually been frozen, and might still be manipulating state.
+
+Or, some reuest might ask main to do something in the shutdown but main is dead.
+
+Or worse, other things might start closing down items such as the Console or Thread Pool
+before we are fully shutdown.
+
+This change tries to resolve all of these issues by moving everything into the stop
+method and guaranteeing only one thread is stopping the server.
+
+We then issue Thread Death to the main thread of another thread initiates the stop process.
+We have to ensure Thread Death propagates correctly though to stop main completely.
+
+This is to ensure that if main isn't truely stuck, it's not manipulating state we are trying to save.
+
+This also moves all plugins who register "delayed init" tasks to occur just before "Done" so they
+are properly accounted for and wont trip watchdog on init.
+
+diff --git a/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java b/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java
+@@ -0,0 +0,0 @@
+package io.papermc.paper.util;
+
+public class LogManagerShutdownThread extends Thread {
+
+    static LogManagerShutdownThread INSTANCE = new LogManagerShutdownThread();
+    public static final void hook() {
+        if (INSTANCE == null) {
+            throw new IllegalStateException("Cannot re-hook after being unhooked");
+        }
+        Runtime.getRuntime().addShutdownHook(INSTANCE);
+    }
+
+    public static final void unhook() {
+        Runtime.getRuntime().removeShutdownHook(INSTANCE);
+        INSTANCE = null;
+    }
+
+    private LogManagerShutdownThread() {
+        super("Log4j2 Shutdown Thread");
+    }
+
+    @Override
+    public void run() {
+        org.apache.logging.log4j.LogManager.shutdown();
+    }
+}
+diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/CrashReport.java
+++ b/src/main/java/net/minecraft/CrashReport.java
+@@ -0,0 +0,0 @@ public class CrashReport {
+     }
+ 
+     public static CrashReport forThrowable(Throwable cause, String title) {
+        if (cause instanceof ThreadDeath) com.destroystokyo.paper.util.SneakyThrow.sneaky(cause); // Paper
+         while (cause instanceof CompletionException && cause.getCause() != null) {
+             cause = cause.getCause();
+         }
+diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/Main.java
+++ b/src/main/java/net/minecraft/server/Main.java
+@@ -0,0 +0,0 @@ public class Main {
+     @SuppressForbidden(reason = "System.out needed before bootstrap") // CraftBukkit - decompile error
+     @DontObfuscate
+     public static void main(final OptionSet optionset) { // CraftBukkit - replaces main(String[] astring)
+        io.papermc.paper.util.LogManagerShutdownThread.hook(); // Paper
+         SharedConstants.tryDetectVersion();
+         /* CraftBukkit start - Replace everything
+         OptionParser optionparser = new OptionParser();
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+     public java.util.Queue<Runnable> processQueue = new java.util.concurrent.ConcurrentLinkedQueue<Runnable>();
+     public int autosavePeriod;
+     // Paper - don't store the vanilla dispatcher
+-    private boolean forceTicks;
+    public boolean forceTicks; // Paper - Improved watchdog support
+     // CraftBukkit end
+     // Spigot start
+     public static final int TPS = 20;
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+     public boolean isIteratingOverLevels = false; // Paper - Throw exception on world create while being ticked
+     private final Set<String> pluginsBlockingSleep = new java.util.HashSet<>(); // Paper - API to allow/disallow tick sleeping
+ 
+    public volatile Thread shutdownThread; // Paper
+    public volatile boolean abnormalExit = false; // Paper
+
+     public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
+         ca.spottedleaf.dataconverter.minecraft.datatypes.MCTypeRegistry.init(); // Paper - rewrite data converter system
+         AtomicReference<S> atomicreference = new AtomicReference();
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+         }
+         */
+         // Paper end
+        io.papermc.paper.util.LogManagerShutdownThread.unhook(); // Paper
+         Runtime.getRuntime().addShutdownHook(new org.bukkit.craftbukkit.util.ServerShutdownThread(this));
+         // CraftBukkit end
+         this.paperConfigurations = services.paperConfigurations(); // Paper - add paper configuration files
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+     // CraftBukkit start
+     private boolean hasStopped = false;
+     private boolean hasLoggedStop = false; // Paper - Debugging
+    public volatile boolean hasFullyShutdown = false; // Paper
+     private final Object stopLock = new Object();
+     public final boolean hasStopped() {
+         synchronized (this.stopLock) {
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             this.hasStopped = true;
+         }
+         if (!hasLoggedStop && isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper - Debugging
+        // Paper start - kill main thread, and kill it hard
+        shutdownThread = Thread.currentThread();
+        org.spigotmc.WatchdogThread.doStop(); // Paper
+        // Paper end
+         // CraftBukkit end
+         if (this.metricsRecorder.isRecording()) {
+             this.cancelRecordingMetrics();
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             ca.spottedleaf.moonrise.common.util.MoonriseCommon.haltExecutors();
+         }
+         // Paper end - rewrite chunk system
+        // Paper start - Improved watchdog support - move final shutdown items here
+        Util.shutdownExecutors();
+        try {
+            net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
+        } catch (final Exception ignored) {
+        }
+        io.papermc.paper.log.CustomLogManager.forceReset(); // Paper - Reset loggers after shutdown
+        this.onServerExit();
+        // Paper end - Improved watchdog support - move final shutdown items here
+     }
+ 
+     public String getLocalIp() {
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+     protected void runServer() {
+         try {
+            long serverStartTime = Util.getNanos(); // Paper
+             if (!this.initServer()) {
+                 throw new IllegalStateException("Failed to initialize server");
+             }
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+             this.server.spark.enableBeforePlugins(); // Paper - spark
+             // Spigot start
+            // Paper start - Improved Watchdog Support
+            LOGGER.info("Running delayed init tasks");
+            this.server.getScheduler().mainThreadHeartbeat(); // run all 1 tick delay tasks during init,
+            // this is going to be the first thing the tick process does anyways, so move done and run it after
+            // everything is init before watchdog tick.
+            // anything at 3+ won't be caught here but also will trip watchdog....
+            // tasks are default scheduled at -1 + delay, and first tick will tick at 1
+            final long actualDoneTimeMs = System.currentTimeMillis() - org.bukkit.craftbukkit.Main.BOOT_TIME.toEpochMilli(); // Paper - Add total time
+            LOGGER.info("Done ({})! For help, type \"help\"", String.format(java.util.Locale.ROOT, "%.3fs", actualDoneTimeMs / 1000.00D)); // Paper - Add total time
+            org.spigotmc.WatchdogThread.tick();
+            // Paper end - Improved Watchdog Support
+             org.spigotmc.WatchdogThread.hasStarted = true; // Paper
+             Arrays.fill( this.recentTps, 20 );
+             // Paper start - further improve server tick loop
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+                 JvmProfiler.INSTANCE.onServerTick(this.smoothedTickTimeMillis);
+             }
+         } catch (Throwable throwable2) {
+            // Paper start
+            if (throwable2 instanceof ThreadDeath) {
+                MinecraftServer.LOGGER.error("Main thread terminated by WatchDog due to hard crash", throwable2);
+                return;
+            }
+            // Paper end
+             MinecraftServer.LOGGER.error("Encountered an unexpected exception", throwable2);
+             CrashReport crashreport = MinecraftServer.constructOrExtractCrashReport(throwable2);
+ 
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+                     this.services.profileCache().clearExecutor();
+                 }
+ 
+-                org.spigotmc.WatchdogThread.doStop(); // Spigot
+                //org.spigotmc.WatchdogThread.doStop(); // Spigot // Paper - move into stop
+                 // CraftBukkit start - Restore terminal to original settings
+                 try {
+-                    net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
+                    //net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Move into stop
+                 } catch (Exception ignored) {
+                 }
+                 // CraftBukkit end
+-                io.papermc.paper.log.CustomLogManager.forceReset(); // Paper - Reset loggers after shutdown
+-                this.onServerExit();
+                //io.papermc.paper.log.CustomLogManager.forceReset(); // Paper - Reset loggers after shutdown
+                //this.onServerExit(); // Paper - moved into stop
+             }
+ 
+         }
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+     @Override
+     public TickTask wrapRunnable(Runnable runnable) {
+        // Paper start - anything that does try to post to main during watchdog crash, run on watchdog
+        if (this.hasStopped && Thread.currentThread().equals(shutdownThread)) {
+            runnable.run();
+            runnable = () -> {};
+        }
+        // Paper end
+         return new TickTask(this.tickCount, runnable);
+     }
+ 
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             this.resources.managers.updateStaticRegistryTags();
+             this.resources.managers.getRecipeManager().finalizeRecipeLoading(this.worldData.enabledFeatures());
+             this.potionBrewing = this.potionBrewing.reload(this.worldData.enabledFeatures()); // Paper - Custom Potion Mixes
+-            this.getPlayerList().saveAll();
+            // Paper start
+            if (Thread.currentThread() != this.serverThread) {
+                return;
+            }
+            // this.getPlayerList().saveAll(); // Paper - we don't need to save everything, just advancements // TODO Move this to a different patch
+            for (ServerPlayer player : this.getPlayerList().getPlayers()) {
+                player.getAdvancements().save();
+            }
+            // Paper end
+             this.getPlayerList().reloadResources();
+             this.functionManager.replaceLibrary(this.resources.managers.getFunctionLibrary());
+             this.structureTemplateManager.onResourceManagerReload(this.resources.resourceManager);
+diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
+@@ -0,0 +0,0 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+             long j = Util.getNanos() - i;
+             String s = String.format(Locale.ROOT, "%.3fs", (double) j / 1.0E9D);
+ 
+-            DedicatedServer.LOGGER.info("Done ({})! For help, type \"help\"", s);
+            DedicatedServer.LOGGER.info("Done preparing level \"{}\" ({})", this.getLevelIdName(), s); // Paper - clarify startup log messages & add total time
+             if (dedicatedserverproperties.announcePlayerAchievements != null) {
+                 ((GameRules.BooleanValue) this.getGameRules().getRule(GameRules.RULE_ANNOUNCE_ADVANCEMENTS)).set(dedicatedserverproperties.announcePlayerAchievements, this.overworld()); // CraftBukkit - per-world
+             }
+@@ -0,0 +0,0 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+             // this.remoteStatusListener.stop(); // Paper - don't wait for remote connections
+         }
+ 
+-        System.exit(0); // CraftBukkit
+        hasFullyShutdown = true; // Paper
+        System.exit(this.abnormalExit ? 70 : 0); // CraftBukkit // Paper
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
+     @Override
+     public void stopServer() {
+         super.stopServer();
+-        Util.shutdownExecutors();
+        //Util.shutdownExecutors(); // Paper - moved into super
+         SkullBlockEntity.clear();
+     }
+ 
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+         this.cserver.getPluginManager().callEvent(playerQuitEvent);
+         entityplayer.getBukkitEntity().disconnect(playerQuitEvent.getQuitMessage());
+ 
+-        entityplayer.doTick(); // SPIGOT-924
+        if (server.isSameThread()) entityplayer.doTick(); // SPIGOT-924 // Paper - don't tick during emergency shutdowns (Watchdog)
+         // CraftBukkit end
+ 
+         // Paper start - Configurable player collision; Remove from collideRule team if needed
+diff --git a/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java b/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java
+++ b/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java
+@@ -0,0 +0,0 @@ public abstract class BlockableEventLoop<R extends Runnable> implements Profiler
+     public static boolean isNonRecoverable(Throwable exception) {
+         return exception instanceof ReportedException reportedException
+             ? isNonRecoverable(reportedException.getCause())
+-            : exception instanceof OutOfMemoryError || exception instanceof StackOverflowError;
+            : exception instanceof OutOfMemoryError || exception instanceof StackOverflowError || exception instanceof ThreadDeath; // Paper
+     }
+ }
+diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
+@@ -0,0 +0,0 @@ public abstract class Level implements LevelAccessor, AutoCloseable, ca.spottedl
+         try {
+             tickConsumer.accept(entity);
+         } catch (Throwable throwable) {
+            if (throwable instanceof ThreadDeath) throw throwable; // Paper
+             // Paper start - Prevent block entity and entity crashes
+             final String msg = String.format("Entity threw exception at %s:%s,%s,%s", entity.level().getWorld().getName(), entity.getX(), entity.getY(), entity.getZ());
+             MinecraftServer.LOGGER.error(msg, throwable);
+diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+@@ -0,0 +0,0 @@ public class LevelChunk extends ChunkAccess implements ca.spottedleaf.moonrise.p
+ 
+                         gameprofilerfiller.pop();
+                     } catch (Throwable throwable) {
+                        if (throwable instanceof ThreadDeath) throw throwable; // Paper
+                         // Paper start - Prevent block entity and entity crashes
+                         final String msg = String.format("BlockEntity threw exception at %s:%s,%s,%s", LevelChunk.this.getLevel().getWorld().getName(), this.getPos().getX(), this.getPos().getY(), this.getPos().getZ());
+                         net.minecraft.server.MinecraftServer.LOGGER.error(msg, throwable);
+diff --git a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
+++ b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
+@@ -0,0 +0,0 @@ public class ServerShutdownThread extends Thread {
+     @Override
+     public void run() {
+         try {
+            // Paper start - try to shutdown on main
+            server.safeShutdown(false, false);
+            for (int i = 1000; i > 0 && !server.hasStopped(); i -= 100) {
+                Thread.sleep(100);
+            }
+            if (server.hasStopped()) {
+                while (!server.hasFullyShutdown) Thread.sleep(1000);
+                return;
+            }
+            // Looks stalled, close async
+             org.spigotmc.AsyncCatcher.enabled = false; // Spigot
+            server.forceTicks = true;
+             this.server.close();
+            while (!server.hasFullyShutdown) Thread.sleep(1000);
+        } catch (InterruptedException e) {
+            e.printStackTrace();
+            // Paper end
+         } finally {
+            org.apache.logging.log4j.LogManager.shutdown(); // Paper
+             try {
+-                net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
+                //net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Move into stop
+             } catch (Exception e) {
+             }
+         }
+diff --git a/src/main/java/org/spigotmc/RestartCommand.java b/src/main/java/org/spigotmc/RestartCommand.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/RestartCommand.java
+++ b/src/main/java/org/spigotmc/RestartCommand.java
+@@ -0,0 +0,0 @@ public class RestartCommand extends Command
+     // Paper end
+ 
+     // Paper start - copied from above and modified to return if the hook registered
+-    private static boolean addShutdownHook(String restartScript)
+    public static boolean addShutdownHook(String restartScript) // Paper
+     {
+         String[] split = restartScript.split( " " );
+         if ( split.length > 0 && new File( split[0] ).isFile() )
+diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
+@@ -0,0 +0,0 @@ import org.bukkit.Bukkit;
+ public class WatchdogThread extends ca.spottedleaf.moonrise.common.util.TickThread // Paper - rewrite chunk system
+ {
+ 
+    public static final boolean DISABLE_WATCHDOG = Boolean.getBoolean("disable.watchdog"); // Paper - Improved watchdog support
+     private static WatchdogThread instance;
+     private long timeoutTime;
+     private boolean restart;
+@@ -0,0 +0,0 @@ public class WatchdogThread extends ca.spottedleaf.moonrise.common.util.TickThre
+     {
+         if ( WatchdogThread.instance == null )
+         {
+            if (timeoutTime <= 0) timeoutTime = 300; // Paper
+             WatchdogThread.instance = new WatchdogThread( timeoutTime * 1000L, restart );
+             WatchdogThread.instance.start();
+         } else
+@@ -0,0 +0,0 @@ public class WatchdogThread extends ca.spottedleaf.moonrise.common.util.TickThre
+             // Paper start
+             Logger log = Bukkit.getServer().getLogger();
+             long currentTime = WatchdogThread.monotonicMillis();
+-            if ( this.lastTick != 0 && this.timeoutTime > 0 && currentTime > this.lastTick + this.earlyWarningEvery && !Boolean.getBoolean("disable.watchdog")) // Paper - Add property to disable
+            MinecraftServer server = MinecraftServer.getServer();
+            if ( this.lastTick != 0 && this.timeoutTime > 0 && WatchdogThread.hasStarted && (!server.isRunning() || (currentTime > this.lastTick + this.earlyWarningEvery && !DISABLE_WATCHDOG) )) // Paper - add property to disable
+             {
+-                boolean isLongTimeout = currentTime > lastTick + timeoutTime;
+                boolean isLongTimeout = currentTime > lastTick + timeoutTime || (!server.isRunning() && !server.hasStopped() && currentTime > lastTick + 1000);
+                 // Don't spam early warning dumps
+                 if ( !isLongTimeout && (earlyWarningEvery <= 0 || !hasStarted || currentTime < lastEarlyWarning + earlyWarningEvery || currentTime < lastTick + earlyWarningDelay)) continue;
+-                if ( !isLongTimeout && MinecraftServer.getServer().hasStopped()) continue; // Don't spam early watchdog warnings during shutdown, we'll come back to this...
+                if ( !isLongTimeout && server.hasStopped()) continue; // Don't spam early watchdog warnings during shutdown, we'll come back to this...
+                 lastEarlyWarning = currentTime;
+                 if (isLongTimeout) {
+                 // Paper end
+@@ -0,0 +0,0 @@ public class WatchdogThread extends ca.spottedleaf.moonrise.common.util.TickThre
+ 
+                 if ( isLongTimeout )
+                 {
+-                if ( this.restart && !MinecraftServer.getServer().hasStopped() )
+                if ( !server.hasStopped() )
+                 {
+-                    RestartCommand.restart();
+                    AsyncCatcher.enabled = false; // Disable async catcher incase it interferes with us
+                    server.forceTicks = true;
+                    if (restart) {
+                        RestartCommand.addShutdownHook( SpigotConfig.restartScript );
+                    }
+                    // try one last chance to safe shutdown on main incase it 'comes back'
+                    server.abnormalExit = true;
+                    server.safeShutdown(false, restart);
+                    try {
+                        Thread.sleep(1000);
+                    } catch (InterruptedException e) {
+                        e.printStackTrace();
+                    }
+                    if (!server.hasStopped()) {
+                        server.close();
+                    }
+                 }
+                 break;
+                 } // Paper end
+diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/resources/log4j2.xml
+++ b/src/main/resources/log4j2.xml
+@@ -0,0 +0,0 @@
+ <?xml version="1.0" encoding="UTF-8"?>
+-<Configuration status="WARN">
+<Configuration status="WARN" shutdownHook="disable">
+     <Appenders>
+         <Queue name="ServerGuiConsole">
+             <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg{nolookups}%n" />
--- a/feature-patches/1062-Detail-more-information-in-watchdog-dumps.patch
+++ b/feature-patches/1062-Detail-more-information-in-watchdog-dumps.patch
@ -0,0 +1,295 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Thu, 26 Mar 2020 21:59:32 -0700
+Subject: [PATCH] Detail more information in watchdog dumps
+
+- Dump position, world, velocity, and uuid for currently ticking entities
+- Dump player name, player uuid, position, and world for packet handling
+
+diff --git a/src/main/java/net/minecraft/network/Connection.java b/src/main/java/net/minecraft/network/Connection.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/Connection.java
+++ b/src/main/java/net/minecraft/network/Connection.java
+@@ -0,0 +0,0 @@ public class Connection extends SimpleChannelInboundHandler<Packet<?>> {
+             if (!(this.packetListener instanceof net.minecraft.server.network.ServerLoginPacketListenerImpl loginPacketListener)
+                 || loginPacketListener.state != net.minecraft.server.network.ServerLoginPacketListenerImpl.State.VERIFYING
+                 || Connection.joinAttemptsThisTick++ < MAX_PER_TICK) {
+            // Paper start - detailed watchdog information
+            net.minecraft.network.protocol.PacketUtils.packetProcessing.push(this.packetListener);
+            try {
+             tickablepacketlistener.tick();
+            } finally {
+                net.minecraft.network.protocol.PacketUtils.packetProcessing.pop();
+            } // Paper end - detailed watchdog information
+             } // Paper end - Buffer joins to world
+         }
+ 
+diff --git a/src/main/java/net/minecraft/network/protocol/PacketUtils.java b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/PacketUtils.java
+++ b/src/main/java/net/minecraft/network/protocol/PacketUtils.java
+@@ -0,0 +0,0 @@ public class PacketUtils {
+ 
+     private static final Logger LOGGER = LogUtils.getLogger();
+ 
+    // Paper start - detailed watchdog information
+    public static final java.util.concurrent.ConcurrentLinkedDeque<PacketListener> packetProcessing = new java.util.concurrent.ConcurrentLinkedDeque<>();
+    static final java.util.concurrent.atomic.AtomicLong totalMainThreadPacketsProcessed = new java.util.concurrent.atomic.AtomicLong();
+
+    public static long getTotalProcessedPackets() {
+        return totalMainThreadPacketsProcessed.get();
+    }
+
+    public static java.util.List<PacketListener> getCurrentPacketProcessors() {
+        java.util.List<PacketListener> ret = new java.util.ArrayList<>(4);
+        for (PacketListener listener : packetProcessing) {
+            ret.add(listener);
+        }
+
+        return ret;
+    }
+    // Paper end - detailed watchdog information
+
+     public PacketUtils() {}
+ 
+     public static <T extends PacketListener> void ensureRunningOnSameThread(Packet<T> packet, T listener, ServerLevel world) throws RunningOnDifferentThreadException {
+@@ -0,0 +0,0 @@ public class PacketUtils {
+     public static <T extends PacketListener> void ensureRunningOnSameThread(Packet<T> packet, T listener, BlockableEventLoop<?> engine) throws RunningOnDifferentThreadException {
+         if (!engine.isSameThread()) {
+             engine.executeIfPossible(() -> {
+                packetProcessing.push(listener); // Paper - detailed watchdog information
+                try { // Paper - detailed watchdog information
+                 if (listener instanceof ServerCommonPacketListenerImpl serverCommonPacketListener && serverCommonPacketListener.processedDisconnect) return; // CraftBukkit - Don't handle sync packets for kicked players
+                 if (listener.shouldHandleMessage(packet)) {
+                     try {
+@@ -0,0 +0,0 @@ public class PacketUtils {
+                 } else {
+                     PacketUtils.LOGGER.debug("Ignoring packet due to disconnection: {}", packet);
+                 }
+                // Paper start - detailed watchdog information
+                } finally {
+                    totalMainThreadPacketsProcessed.getAndIncrement();
+                    packetProcessing.pop();
+                }
+                // Paper end - detailed watchdog information
+ 
+             });
+             throw RunningOnDifferentThreadException.RUNNING_ON_DIFFERENT_THREAD;
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+ 
+     }
+ 
+    // Paper start - log detailed entity tick information
+    // TODO replace with varhandle
+    static final java.util.concurrent.atomic.AtomicReference<Entity> currentlyTickingEntity = new java.util.concurrent.atomic.AtomicReference<>();
+
+    public static List<Entity> getCurrentlyTickingEntities() {
+        Entity ticking = currentlyTickingEntity.get();
+        List<Entity> ret = java.util.Arrays.asList(ticking == null ? new Entity[0] : new Entity[] { ticking });
+
+        return ret;
+    }
+    // Paper end - log detailed entity tick information
+
+     public void tickNonPassenger(Entity entity) {
+        // Paper start - log detailed entity tick information
+        ca.spottedleaf.moonrise.common.util.TickThread.ensureTickThread("Cannot tick an entity off-main");
+        try {
+            if (currentlyTickingEntity.get() == null) {
+                currentlyTickingEntity.lazySet(entity);
+            }
+            // Paper end - log detailed entity tick information
+         // Spigot start
+         /*if (!org.spigotmc.ActivationRange.checkIfActive(entity)) { // Paper - comment out EAR 2
+             entity.tickCount++;
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+             this.tickPassenger(entity, entity1, isActive); // Paper - EAR 2
+         }
+ 
+        // Paper start - log detailed entity tick information
+        } finally {
+            if (currentlyTickingEntity.get() == entity) {
+                currentlyTickingEntity.lazySet(null);
+            }
+        }
+        // Paper end - log detailed entity tick information
+     }
+ 
+     private void tickPassenger(Entity vehicle, Entity passenger, boolean isActive) { // Paper - EAR 2
+diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+         return this.onGround;
+     }
+ 
+    // Paper start - detailed watchdog information
+    public final Object posLock = new Object(); // Paper - log detailed entity tick information
+
+    private Vec3 moveVector;
+    private double moveStartX;
+    private double moveStartY;
+    private double moveStartZ;
+
+    public final Vec3 getMoveVector() {
+        return this.moveVector;
+    }
+
+    public final double getMoveStartX() {
+        return this.moveStartX;
+    }
+
+    public final double getMoveStartY() {
+        return this.moveStartY;
+    }
+
+    public final double getMoveStartZ() {
+        return this.moveStartZ;
+    }
+    // Paper end - detailed watchdog information
+
+     public void move(MoverType type, Vec3 movement) {
+         final Vec3 originalMovement = movement; // Paper - Expose pre-collision velocity
+        // Paper start - detailed watchdog information
+        ca.spottedleaf.moonrise.common.util.TickThread.ensureTickThread("Cannot move an entity off-main");
+        synchronized (this.posLock) {
+            this.moveStartX = this.getX();
+            this.moveStartY = this.getY();
+            this.moveStartZ = this.getZ();
+            this.moveVector = movement;
+        }
+        try {
+        // Paper end - detailed watchdog information
+         if (this.noPhysics) {
+             this.setPos(this.getX() + movement.x, this.getY() + movement.y, this.getZ() + movement.z);
+         } else {
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+                 gameprofilerfiller.pop();
+             }
+         }
+        // Paper start - detailed watchdog information
+        } finally {
+            synchronized (this.posLock) { // Paper
+                this.moveVector = null;
+            } // Paper
+        }
+        // Paper end - detailed watchdog information
+     }
+ 
+     private void applyMovementEmissionAndPlaySound(Entity.MovementEmission moveEffect, Vec3 movement, BlockPos landingPos, BlockState landingState) {
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+     }
+ 
+     public void setDeltaMovement(Vec3 velocity) {
+        synchronized (this.posLock) { // Paper
+         this.deltaMovement = velocity;
+        } // Paper
+     }
+ 
+     public void addDeltaMovement(Vec3 velocity) {
+@@ -0,0 +0,0 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
+         }
+         // Paper end - Fix MC-4
+         if (this.position.x != x || this.position.y != y || this.position.z != z) {
+            synchronized (this.posLock) { // Paper
+             this.position = new Vec3(x, y, z);
+            } // Paper
+             int i = Mth.floor(x);
+             int j = Mth.floor(y);
+             int k = Mth.floor(z);
+diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
+@@ -0,0 +0,0 @@ public class WatchdogThread extends ca.spottedleaf.moonrise.common.util.TickThre
+     private volatile long lastTick;
+     private volatile boolean stopping;
+ 
+    // Paper start - log detailed tick information
+    private void dumpEntity(net.minecraft.world.entity.Entity entity) {
+        Logger log = Bukkit.getServer().getLogger();
+        double posX, posY, posZ;
+        net.minecraft.world.phys.Vec3 mot;
+        double moveStartX, moveStartY, moveStartZ;
+        net.minecraft.world.phys.Vec3 moveVec;
+        synchronized (entity.posLock) {
+            posX = entity.getX();
+            posY = entity.getY();
+            posZ = entity.getZ();
+            mot = entity.getDeltaMovement();
+            moveStartX = entity.getMoveStartX();
+            moveStartY = entity.getMoveStartY();
+            moveStartZ = entity.getMoveStartZ();
+            moveVec = entity.getMoveVector();
+        }
+
+        String entityType = net.minecraft.world.entity.EntityType.getKey(entity.getType()).toString();
+        java.util.UUID entityUUID = entity.getUUID();
+        net.minecraft.world.level.Level world = entity.level();
+
+        log.log(Level.SEVERE, "Ticking entity: " + entityType + ", entity class: " + entity.getClass().getName());
+        log.log(Level.SEVERE, "Entity status: removed: " + entity.isRemoved() + ", valid: " + entity.valid + ", alive: " + entity.isAlive() + ", is passenger: " + entity.isPassenger());
+        log.log(Level.SEVERE, "Entity UUID: " + entityUUID);
+        log.log(Level.SEVERE, "Position: world: '" + (world == null ? "unknown world?" : world.getWorld().getName()) + "' at location (" + posX + ", " + posY + ", " + posZ + ")");
+        log.log(Level.SEVERE, "Velocity: " + (mot == null ? "unknown velocity" : mot.toString()) + " (in blocks per tick)");
+        log.log(Level.SEVERE, "Entity AABB: " + entity.getBoundingBox());
+        if (moveVec != null) {
+            log.log(Level.SEVERE, "Move call information: ");
+            log.log(Level.SEVERE, "Start position: (" + moveStartX + ", " + moveStartY + ", " + moveStartZ + ")");
+            log.log(Level.SEVERE, "Move vector: " + moveVec.toString());
+        }
+    }
+
+    private void dumpTickingInfo() {
+        Logger log = Bukkit.getServer().getLogger();
+
+        // ticking entities
+        for (net.minecraft.world.entity.Entity entity : net.minecraft.server.level.ServerLevel.getCurrentlyTickingEntities()) {
+            this.dumpEntity(entity);
+            net.minecraft.world.entity.Entity vehicle = entity.getVehicle();
+            if (vehicle != null) {
+                log.log(Level.SEVERE, "Detailing vehicle for above entity:");
+                this.dumpEntity(vehicle);
+            }
+        }
+
+        // packet processors
+        for (net.minecraft.network.PacketListener packetListener : net.minecraft.network.protocol.PacketUtils.getCurrentPacketProcessors()) {
+            if (packetListener instanceof net.minecraft.server.network.ServerGamePacketListenerImpl) {
+                net.minecraft.server.level.ServerPlayer player = ((net.minecraft.server.network.ServerGamePacketListenerImpl)packetListener).player;
+                long totalPackets = net.minecraft.network.protocol.PacketUtils.getTotalProcessedPackets();
+                if (player == null) {
+                    log.log(Level.SEVERE, "Handling packet for player connection or ticking player connection (null player): " + packetListener);
+                    log.log(Level.SEVERE, "Total packets processed on the main thread for all players: " + totalPackets);
+                } else {
+                    this.dumpEntity(player);
+                    net.minecraft.world.entity.Entity vehicle = player.getVehicle();
+                    if (vehicle != null) {
+                        log.log(Level.SEVERE, "Detailing vehicle for above entity:");
+                        this.dumpEntity(vehicle);
+                    }
+                    log.log(Level.SEVERE, "Total packets processed on the main thread for all players: " + totalPackets);
+                }
+            } else {
+                log.log(Level.SEVERE, "Handling packet for connection: " + packetListener);
+            }
+        }
+    }
+    // Paper end - log detailed tick information
+
+     private WatchdogThread(long timeoutTime, boolean restart)
+     {
+         super( "Paper Watchdog Thread" );
+@@ -0,0 +0,0 @@ public class WatchdogThread extends ca.spottedleaf.moonrise.common.util.TickThre
+                 log.log( Level.SEVERE, "------------------------------" );
+                 log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" ); // Paper
+                 ca.spottedleaf.moonrise.patches.chunk_system.scheduling.ChunkTaskScheduler.dumpAllChunkLoadInfo(MinecraftServer.getServer(), isLongTimeout); // Paper - rewrite chunk system
+                this.dumpTickingInfo(); // Paper - log detailed tick information
+                 WatchdogThread.dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().serverThread.getId(), Integer.MAX_VALUE ), log );
+                 log.log( Level.SEVERE, "------------------------------" );
+                 //
--- a/feature-patches/1063-Entity-load-save-limit-per-chunk.patch
+++ b/feature-patches/1063-Entity-load-save-limit-per-chunk.patch
@ -0,0 +1,81 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
+Date: Wed, 18 Nov 2020 20:52:25 -0800
+Subject: [PATCH] Entity load/save limit per chunk
+
+Adds a config option to limit the number of entities saved and loaded
+to a chunk. The default values of -1 disable the limit. Although
+defaults are only included for certain entites, this allows setting
+limits for any entity type.
+
+diff --git a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
+++ b/src/main/java/ca/spottedleaf/moonrise/patches/chunk_system/level/entity/ChunkEntitySlices.java
+@@ -0,0 +0,0 @@ public final class ChunkEntitySlices {
+         }
+ 
+         final ListTag entitiesTag = new ListTag();
+        final java.util.Map<net.minecraft.world.entity.EntityType<?>, Integer> savedEntityCounts = new java.util.HashMap<>(); // Paper - Entity load/save limit per chunk
+         for (final Entity entity : PlatformHooks.get().modifySavedEntities(world, chunkPos.x, chunkPos.z, entities)) {
+            // Paper start - Entity load/save limit per chunk
+            final EntityType<?> entityType = entity.getType();
+            final int saveLimit = world.paperConfig().chunks.entityPerChunkSaveLimit.getOrDefault(entityType, -1);
+            if (saveLimit > -1) {
+                if (savedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
+                    continue;
+                }
+                savedEntityCounts.merge(entityType, 1, Integer::sum);
+            }
+            // Paper end - Entity load/save limit per chunk
+             CompoundTag compoundTag = new CompoundTag();
+             if (entity.save(compoundTag)) {
+                 entitiesTag.add(compoundTag);
+diff --git a/src/main/java/net/minecraft/world/entity/EntityType.java b/src/main/java/net/minecraft/world/entity/EntityType.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/EntityType.java
+++ b/src/main/java/net/minecraft/world/entity/EntityType.java
+@@ -0,0 +0,0 @@ public class EntityType<T extends Entity> implements FeatureElement, EntityTypeT
+         final Spliterator<? extends Tag> spliterator = entityNbtList.spliterator();
+ 
+         return StreamSupport.stream(new Spliterator<Entity>() {
+            final java.util.Map<EntityType<?>, Integer> loadedEntityCounts = new java.util.HashMap<>(); // Paper - Entity load/save limit per chunk
+             public boolean tryAdvance(Consumer<? super Entity> consumer) {
+                 return spliterator.tryAdvance((nbtbase) -> {
+                     EntityType.loadEntityRecursive((CompoundTag) nbtbase, world, reason, (entity) -> {
+                        // Paper start - Entity load/save limit per chunk
+                        final EntityType<?> entityType = entity.getType();
+                        final int saveLimit = world.paperConfig().chunks.entityPerChunkSaveLimit.getOrDefault(entityType, -1);
+                        if (saveLimit > -1) {
+                            if (this.loadedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
+                                return null;
+                            }
+                            this.loadedEntityCounts.merge(entityType, 1, Integer::sum);
+                        }
+                        // Paper end - Entity load/save limit per chunk
+                         consumer.accept(entity);
+                         return entity;
+                     });
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/EntityStorage.java
+@@ -0,0 +0,0 @@ public class EntityStorage implements EntityPersistentStorage<Entity> {
+             }
+         } else {
+             ListTag listTag = new ListTag();
+            final java.util.Map<net.minecraft.world.entity.EntityType<?>, Integer> savedEntityCounts = new java.util.HashMap<>(); // Paper - Entity load/save limit per chunk
+             dataList.getEntities().forEach(entity -> {
+                // Paper start - Entity load/save limit per chunk
+                final EntityType<?> entityType = entity.getType();
+                final int saveLimit = this.level.paperConfig().chunks.entityPerChunkSaveLimit.getOrDefault(entityType, -1);
+                if (saveLimit > -1) {
+                    if (savedEntityCounts.getOrDefault(entityType, 0) >= saveLimit) {
+                        return;
+                    }
+                    savedEntityCounts.merge(entityType, 1, Integer::sum);
+                }
+                // Paper end - Entity load/save limit per chunk
+                 CompoundTag compoundTagx = new CompoundTag();
+                 if (entity.save(compoundTagx)) {
+                     listTag.add(compoundTagx);
--- a/feature-patches/1064-Attempt-to-recalculate-regionfile-header-if-it-is-co.patch
+++ b/feature-patches/1064-Attempt-to-recalculate-regionfile-header-if-it-is-co.patch
@ -0,0 +1,742 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sun, 2 Feb 2020 02:25:10 -0800
+Subject: [PATCH] Attempt to recalculate regionfile header if it is corrupt
+
+Instead of trying to relocate the chunk, which is seems to never
+be the correct choice, so we end up duplicating or swapping chunks,
+we instead drop the current regionfile header and recalculate -
+hoping that at least then we don't swap chunks, and maybe recover
+them all.
+
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionBitmap.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionBitmap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionBitmap.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionBitmap.java
+@@ -0,0 +0,0 @@ import java.util.BitSet;
+ public class RegionBitmap {
+     private final BitSet used = new BitSet();
+ 
+    // Paper start - Attempt to recalculate regionfile header if it is corrupt
+    public final void copyFrom(RegionBitmap other) {
+        BitSet thisBitset = this.used;
+        BitSet otherBitset = other.used;
+
+        for (int i = 0; i < Math.max(thisBitset.size(), otherBitset.size()); ++i) {
+            thisBitset.set(i, otherBitset.get(i));
+        }
+    }
+
+    public final boolean tryAllocate(int from, int length) {
+        BitSet bitset = this.used;
+        int firstSet = bitset.nextSetBit(from);
+        if (firstSet > 0 && firstSet < (from + length)) {
+            return false;
+        }
+        bitset.set(from, from + length);
+        return true;
+    }
+    // Paper end - Attempt to recalculate regionfile header if it is corrupt
+
+     public void force(int start, int size) {
+         this.used.set(start, start + size);
+     }
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFile.java
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+     private final IntBuffer timestamps;
+     @VisibleForTesting
+     protected final RegionBitmap usedSectors;
+    // Paper start - Attempt to recalculate regionfile header if it is corrupt
+    private static long roundToSectors(long bytes) {
+        long sectors = bytes >>> 12; // 4096 = 2^12
+        long remainingBytes = bytes & 4095;
+        long sign = -remainingBytes; // sign is 1 if nonzero
+        return sectors + (sign >>> 63);
+    }
+
+    private static final CompoundTag OVERSIZED_COMPOUND = new CompoundTag();
+
+    private CompoundTag attemptRead(long sector, int chunkDataLength, long fileLength) throws IOException {
+        try {
+            if (chunkDataLength < 0) {
+                return null;
+            }
+
+            long offset = sector * 4096L + 4L; // offset for chunk data
+
+            if ((offset + chunkDataLength) > fileLength) {
+                return null;
+            }
+
+            ByteBuffer chunkData = ByteBuffer.allocate(chunkDataLength);
+            if (chunkDataLength != this.file.read(chunkData, offset)) {
+                return null;
+            }
+
+            ((java.nio.Buffer)chunkData).flip();
+
+            byte compressionType = chunkData.get();
+            if (compressionType < 0) { // compressionType & 128 != 0
+                // oversized chunk
+                return OVERSIZED_COMPOUND;
+            }
+
+            RegionFileVersion compression = RegionFileVersion.fromId(compressionType);
+            if (compression == null) {
+                return null;
+            }
+
+            InputStream input = compression.wrap(new ByteArrayInputStream(chunkData.array(), chunkData.position(), chunkDataLength - chunkData.position()));
+
+            return NbtIo.read(new DataInputStream(input));
+        } catch (Exception ex) {
+            return null;
+        }
+    }
+
+    private int getLength(long sector) throws IOException {
+        ByteBuffer length = ByteBuffer.allocate(4);
+        if (4 != this.file.read(length, sector * 4096L)) {
+            return -1;
+        }
+
+        return length.getInt(0);
+    }
+
+    private void backupRegionFile() {
+        Path backup = this.path.getParent().resolve(this.path.getFileName() + "." + new java.util.Random().nextLong() + ".backup");
+        this.backupRegionFile(backup);
+    }
+
+    private void backupRegionFile(Path to) {
+        try {
+            this.file.force(true);
+            LOGGER.warn("Backing up regionfile \"" + this.path.toAbsolutePath() + "\" to " + to.toAbsolutePath());
+            java.nio.file.Files.copy(this.path, to, java.nio.file.StandardCopyOption.COPY_ATTRIBUTES);
+            LOGGER.warn("Backed up the regionfile to " + to.toAbsolutePath());
+        } catch (IOException ex) {
+            LOGGER.error("Failed to backup to " + to.toAbsolutePath(), ex);
+        }
+    }
+
+    private static boolean inSameRegionfile(ChunkPos first, ChunkPos second) {
+        return (first.x & ~31) == (second.x & ~31) && (first.z & ~31) == (second.z & ~31);
+    }
+
+    // note: only call for CHUNK regionfiles
+    boolean recalculateHeader() throws IOException {
+        if (!this.canRecalcHeader) {
+            return false;
+        }
+        ChunkPos ourLowerLeftPosition = RegionFileStorage.getRegionFileCoordinates(this.path);
+        if (ourLowerLeftPosition == null) {
+            LOGGER.error("Unable to get chunk location of regionfile " + this.path.toAbsolutePath() + ", cannot recover header");
+            return false;
+        }
+        synchronized (this) {
+            LOGGER.warn("Corrupt regionfile header detected! Attempting to re-calculate header offsets for regionfile " + this.path.toAbsolutePath(), new Throwable());
+
+            // try to backup file so maybe it could be sent to us for further investigation
+
+            this.backupRegionFile();
+            CompoundTag[] compounds = new CompoundTag[32 * 32]; // only in the regionfile (i.e exclude mojang/aikar oversized data)
+            int[] rawLengths = new int[32 * 32]; // length of chunk data including 4 byte length field, bytes
+            int[] sectorOffsets = new int[32 * 32]; // in sectors
+            boolean[] hasAikarOversized = new boolean[32 * 32];
+
+            long fileLength = this.file.size();
+            long totalSectors = roundToSectors(fileLength);
+
+            // search the regionfile from start to finish for the most up-to-date chunk data
+
+            for (long i = 2, maxSector = Math.min((long)(Integer.MAX_VALUE >>> 8), totalSectors); i < maxSector; ++i) { // first two sectors are header, skip
+                int chunkDataLength = this.getLength(i);
+                CompoundTag compound = this.attemptRead(i, chunkDataLength, fileLength);
+                if (compound == null || compound == OVERSIZED_COMPOUND) {
+                    continue;
+                }
+
+                ChunkPos chunkPos = SerializableChunkData.getChunkCoordinate(compound);
+                if (!inSameRegionfile(ourLowerLeftPosition, chunkPos)) {
+                    LOGGER.error("Ignoring absolute chunk " + chunkPos + " in regionfile as it is not contained in the bounds of the regionfile '" + this.path.toAbsolutePath() + "'. It should be in regionfile (" + (chunkPos.x >> 5) + "," + (chunkPos.z >> 5) + ")");
+                    continue;
+                }
+                int location = (chunkPos.x & 31) | ((chunkPos.z & 31) << 5);
+
+                CompoundTag otherCompound = compounds[location];
+
+                if (otherCompound != null && SerializableChunkData.getLastWorldSaveTime(otherCompound) > SerializableChunkData.getLastWorldSaveTime(compound)) {
+                    continue; // don't overwrite newer data.
+                }
+
+                // aikar oversized?
+                Path aikarOversizedFile = this.getOversizedFile(chunkPos.x, chunkPos.z);
+                boolean isAikarOversized = false;
+                if (Files.exists(aikarOversizedFile)) {
+                    try {
+                        CompoundTag aikarOversizedCompound = this.getOversizedData(chunkPos.x, chunkPos.z);
+                        if (SerializableChunkData.getLastWorldSaveTime(compound) == SerializableChunkData.getLastWorldSaveTime(aikarOversizedCompound)) {
+                            // best we got for an id. hope it's good enough
+                            isAikarOversized = true;
+                        }
+                    } catch (Exception ex) {
+                        LOGGER.error("Failed to read aikar oversized data for absolute chunk (" + chunkPos.x + "," + chunkPos.z + ") in regionfile " + this.path.toAbsolutePath() + ", oversized data for this chunk will be lost", ex);
+                        // fall through, if we can't read aikar oversized we can't risk corrupting chunk data
+                    }
+                }
+
+                hasAikarOversized[location] = isAikarOversized;
+                compounds[location] = compound;
+                rawLengths[location] = chunkDataLength + 4;
+                sectorOffsets[location] = (int)i;
+
+                int chunkSectorLength = (int)roundToSectors(rawLengths[location]);
+                i += chunkSectorLength;
+                --i; // gets incremented next iteration
+            }
+
+            // forge style oversized data is already handled by the local search, and aikar data we just hope
+            // we get it right as aikar data has no identifiers we could use to try and find its corresponding
+            // local data compound
+
+            java.nio.file.Path containingFolder = this.externalFileDir;
+            Path[] regionFiles = Files.list(containingFolder).toArray(Path[]::new);
+            boolean[] oversized = new boolean[32 * 32];
+            RegionFileVersion[] oversizedCompressionTypes = new RegionFileVersion[32 * 32];
+
+            if (regionFiles != null) {
+                int lowerXBound = ourLowerLeftPosition.x; // inclusive
+                int lowerZBound = ourLowerLeftPosition.z; // inclusive
+                int upperXBound = lowerXBound + 32 - 1; // inclusive
+                int upperZBound = lowerZBound + 32 - 1; // inclusive
+
+                // read mojang oversized data
+                for (Path regionFile : regionFiles) {
+                    ChunkPos oversizedCoords = getOversizedChunkPair(regionFile);
+                    if (oversizedCoords == null) {
+                        continue;
+                    }
+
+                    if ((oversizedCoords.x < lowerXBound || oversizedCoords.x > upperXBound) || (oversizedCoords.z < lowerZBound || oversizedCoords.z > upperZBound)) {
+                        continue; // not in our regionfile
+                    }
+
+                    // ensure oversized data is valid & is newer than data in the regionfile
+
+                    int location = (oversizedCoords.x & 31) | ((oversizedCoords.z & 31) << 5);
+
+                    byte[] chunkData;
+                    try {
+                        chunkData = Files.readAllBytes(regionFile);
+                    } catch (Exception ex) {
+                        LOGGER.error("Failed to read oversized chunk data in file " + regionFile.toAbsolutePath() + ", data will be lost", ex);
+                        continue;
+                    }
+
+                    CompoundTag compound = null;
+
+                    // We do not know the compression type, as it's stored in the regionfile. So we need to try all of them
+                    RegionFileVersion compression = null;
+                    for (RegionFileVersion compressionType : RegionFileVersion.VERSIONS.values()) {
+                        try {
+                            DataInputStream in = new DataInputStream(compressionType.wrap(new ByteArrayInputStream(chunkData))); // typical java
+                            compound = NbtIo.read((java.io.DataInput)in);
+                            compression = compressionType;
+                            break; // reaches here iff readNBT does not throw
+                        } catch (Exception ex) {
+                            continue;
+                        }
+                    }
+
+                    if (compound == null) {
+                        LOGGER.error("Failed to read oversized chunk data in file " + regionFile.toAbsolutePath() + ", it's corrupt. Its data will be lost");
+                        continue;
+                    }
+
+                    if (!SerializableChunkData.getChunkCoordinate(compound).equals(oversizedCoords)) {
+                        LOGGER.error("Can't use oversized chunk stored in " + regionFile.toAbsolutePath() + ", got absolute chunkpos: " + SerializableChunkData.getChunkCoordinate(compound) + ", expected " + oversizedCoords);
+                        continue;
+                    }
+
+                    if (compounds[location] == null || SerializableChunkData.getLastWorldSaveTime(compound) > SerializableChunkData.getLastWorldSaveTime(compounds[location])) {
+                        oversized[location] = true;
+                        oversizedCompressionTypes[location] = compression;
+                    }
+                }
+            }
+
+            // now we need to calculate a new offset header
+
+            int[] calculatedOffsets = new int[32 * 32];
+            RegionBitmap newSectorAllocations = new RegionBitmap();
+            newSectorAllocations.force(0, 2); // make space for header
+
+            // allocate sectors for normal chunks
+
+            for (int chunkX = 0; chunkX < 32; ++chunkX) {
+                for (int chunkZ = 0; chunkZ < 32; ++chunkZ) {
+                    int location = chunkX | (chunkZ << 5);
+
+                    if (oversized[location]) {
+                        continue;
+                    }
+
+                    int rawLength = rawLengths[location]; // bytes
+                    int sectorOffset = sectorOffsets[location]; // sectors
+                    int sectorLength = (int)roundToSectors(rawLength);
+
+                    if (newSectorAllocations.tryAllocate(sectorOffset, sectorLength)) {
+                        calculatedOffsets[location] = sectorOffset << 8 | (sectorLength > 255 ? 255 : sectorLength); // support forge style oversized
+                    } else {
+                        LOGGER.error("Failed to allocate space for local chunk (overlapping data??) at (" + chunkX + "," + chunkZ + ") in regionfile " + this.path.toAbsolutePath() + ", chunk will be regenerated");
+                    }
+                }
+            }
+
+            // allocate sectors for oversized chunks
+
+            for (int chunkX = 0; chunkX < 32; ++chunkX) {
+                for (int chunkZ = 0; chunkZ < 32; ++chunkZ) {
+                    int location = chunkX | (chunkZ << 5);
+
+                    if (!oversized[location]) {
+                        continue;
+                    }
+
+                    int sectorOffset = newSectorAllocations.allocate(1);
+                    int sectorLength = 1;
+
+                    try {
+                        this.file.write(this.createExternalStub(oversizedCompressionTypes[location]), sectorOffset * 4096);
+                        // only allocate in the new offsets if the write succeeds
+                        calculatedOffsets[location] = sectorOffset << 8 | (sectorLength > 255 ? 255 : sectorLength); // support forge style oversized
+                    } catch (IOException ex) {
+                        newSectorAllocations.free(sectorOffset, sectorLength);
+                        LOGGER.error("Failed to write new oversized chunk data holder, local chunk at (" + chunkX + "," + chunkZ + ") in regionfile " + this.path.toAbsolutePath() + " will be regenerated");
+                    }
+                }
+            }
+
+            // rewrite aikar oversized data
+
+            this.oversizedCount = 0;
+            for (int chunkX = 0; chunkX < 32; ++chunkX) {
+                for (int chunkZ = 0; chunkZ < 32; ++chunkZ) {
+                    int location = chunkX | (chunkZ << 5);
+                    int isAikarOversized = hasAikarOversized[location] ? 1 : 0;
+
+                    this.oversizedCount += isAikarOversized;
+                    this.oversized[location] = (byte)isAikarOversized;
+                }
+            }
+
+            if (this.oversizedCount > 0) {
+                try {
+                    this.writeOversizedMeta();
+                } catch (Exception ex) {
+                    LOGGER.error("Failed to write aikar oversized chunk meta, all aikar style oversized chunk data will be lost for regionfile " + this.path.toAbsolutePath(), ex);
+                    Files.deleteIfExists(this.getOversizedMetaFile());
+                }
+            } else {
+                Files.deleteIfExists(this.getOversizedMetaFile());
+            }
+
+            this.usedSectors.copyFrom(newSectorAllocations);
+
+            // before we overwrite the old sectors, print a summary of the chunks that got changed.
+
+            LOGGER.info("Starting summary of changes for regionfile " + this.path.toAbsolutePath());
+
+            for (int chunkX = 0; chunkX < 32; ++chunkX) {
+                for (int chunkZ = 0; chunkZ < 32; ++chunkZ) {
+                    int location = chunkX | (chunkZ << 5);
+
+                    int oldOffset = this.offsets.get(location);
+                    int newOffset = calculatedOffsets[location];
+
+                    if (oldOffset == newOffset) {
+                        continue;
+                    }
+
+                    this.offsets.put(location, newOffset); // overwrite incorrect offset
+
+                    if (oldOffset == 0) {
+                        // found lost data
+                        LOGGER.info("Found missing data for local chunk (" + chunkX + "," + chunkZ + ") in regionfile " + this.path.toAbsolutePath());
+                    } else if (newOffset == 0) {
+                        LOGGER.warn("Data for local chunk (" + chunkX + "," + chunkZ + ") could not be recovered in regionfile " + this.path.toAbsolutePath() + ", it will be regenerated");
+                    } else {
+                        LOGGER.info("Local chunk (" + chunkX + "," + chunkZ + ") changed to point to newer data or correct chunk in regionfile " + this.path.toAbsolutePath());
+                    }
+                }
+            }
+
+            LOGGER.info("End of change summary for regionfile " + this.path.toAbsolutePath());
+
+            // simply destroy the timestamp header, it's not used
+
+            for (int i = 0; i < 32 * 32; ++i) {
+                this.timestamps.put(i, calculatedOffsets[i] != 0 ? RegionFile.getTimestamp() : 0); // write a valid timestamp for valid chunks, I do not want to find out whatever dumb program actually checks this
+            }
+
+            // write new header
+            try {
+                this.flush();
+                this.file.force(true); // try to ensure it goes through...
+                LOGGER.info("Successfully wrote new header to disk for regionfile " + this.path.toAbsolutePath());
+            } catch (IOException ex) {
+                LOGGER.error("Failed to write new header to disk for regionfile " + this.path.toAbsolutePath(), ex);
+            }
+        }
+
+        return true;
+    }
+
+    final boolean canRecalcHeader; // final forces compile fail on new constructor
+    // Paper end - Attempt to recalculate regionfile header if it is corrupt
+ 
+     // Paper start - rewrite chunk system
+     @Override
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+             throw new IllegalArgumentException("Expected directory, got " + String.valueOf(directory.toAbsolutePath()));
+         } else {
+             this.externalFileDir = directory;
+            this.canRecalcHeader = RegionFileStorage.isChunkDataFolder(this.externalFileDir); // Paper - add can recalc flag
+             this.offsets = this.header.asIntBuffer();
+             ((java.nio.Buffer) this.offsets).limit(1024); // CraftBukkit - decompile error
+             ((java.nio.Buffer) this.header).position(4096); // CraftBukkit - decompile error
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+                     RegionFile.LOGGER.warn("Region file {} has truncated header: {}", path, i);
+                 }
+ 
+-                long j = Files.size(path);
+                final long j = Files.size(path); final long regionFileSize = j; // Paper - recalculate header on header corruption
+ 
+-                for (int k = 0; k < 1024; ++k) {
+-                    int l = this.offsets.get(k);
+                boolean needsHeaderRecalc = false; // Paper - recalculate header on header corruption
+                boolean hasBackedUp = false; // Paper - recalculate header on header corruption
+                for (int k = 0; k < 1024; ++k) { final int headerLocation = k; // Paper - we expect this to be the header location
+                    final int l = this.offsets.get(k);
+ 
+                     if (l != 0) {
+-                        int i1 = RegionFile.getSectorNumber(l);
+-                        int j1 = RegionFile.getNumSectors(l);
+                        final int i1 = RegionFile.getSectorNumber(l); final int offset = i1; // Paper - we expect this to be offset in file in sectors
+                        int j1 = RegionFile.getNumSectors(l); final int sectorLength; // Paper - diff on change, we expect this to be sector length of region - watch out for reassignments
+                         // Spigot start
+                         if (j1 == 255) {
+                             // We're maxed out, so we need to read the proper length from the section
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+                             j1 = (realLen.getInt(0) + 4) / 4096 + 1;
+                         }
+                         // Spigot end
+                        sectorLength = j1; // Paper - diff on change, we expect this to be sector length of region
+ 
+                         if (i1 < 2) {
+                             RegionFile.LOGGER.warn("Region file {} has invalid sector at index: {}; sector {} overlaps with header", new Object[]{path, k, i1});
+-                            this.offsets.put(k, 0);
+                            //this.offsets.put(k, 0); // Paper - we catch this, but need it in the header for the summary change
+                         } else if (j1 == 0) {
+                             RegionFile.LOGGER.warn("Region file {} has an invalid sector at index: {}; size has to be > 0", path, k);
+-                            this.offsets.put(k, 0);
+                            //this.offsets.put(k, 0); // Paper - we catch this, but need it in the header for the summary change
+                         } else if ((long) i1 * 4096L > j) {
+                             RegionFile.LOGGER.warn("Region file {} has an invalid sector at index: {}; sector {} is out of bounds", new Object[]{path, k, i1});
+-                            this.offsets.put(k, 0);
+                            //this.offsets.put(k, 0); // Paper - we catch this, but need it in the header for the summary change
+                         } else {
+-                            this.usedSectors.force(i1, j1);
+                            //this.usedSectors.force(i1, j1); // Paper - move this down so we can check if it fails to allocate
+                        }
+                        // Paper start - recalculate header on header corruption
+                        if (offset < 2 || sectorLength <= 0 || ((long)offset * 4096L) > regionFileSize) {
+                            if (canRecalcHeader) {
+                                LOGGER.error("Detected invalid header for regionfile " + this.path.toAbsolutePath() + "! Recalculating header...");
+                                needsHeaderRecalc = true;
+                                break;
+                            } else {
+                                // location = chunkX | (chunkZ << 5);
+                                LOGGER.error("Detected invalid header for regionfile " + this.path.toAbsolutePath() +
+                                        "! Cannot recalculate, removing local chunk (" + (headerLocation & 31) + "," + (headerLocation >>> 5) + ") from header");
+                                if (!hasBackedUp) {
+                                    hasBackedUp = true;
+                                    this.backupRegionFile();
+                                }
+                                this.timestamps.put(headerLocation, 0); // be consistent, delete the timestamp too
+                                this.offsets.put(headerLocation, 0); // delete the entry from header
+                                continue;
+                            }
+                        }
+                        boolean failedToAllocate = !this.usedSectors.tryAllocate(offset, sectorLength);
+                        if (failedToAllocate) {
+                            LOGGER.error("Overlapping allocation by local chunk (" + (headerLocation & 31) + "," + (headerLocation >>> 5) + ") in regionfile " + this.path.toAbsolutePath());
+                         }
+                        if (failedToAllocate & !canRecalcHeader) {
+                            // location = chunkX | (chunkZ << 5);
+                            LOGGER.error("Detected invalid header for regionfile " + this.path.toAbsolutePath() +
+                                    "! Cannot recalculate, removing local chunk (" + (headerLocation & 31) + "," + (headerLocation >>> 5) + ") from header");
+                            if (!hasBackedUp) {
+                                hasBackedUp = true;
+                                this.backupRegionFile();
+                            }
+                            this.timestamps.put(headerLocation, 0); // be consistent, delete the timestamp too
+                            this.offsets.put(headerLocation, 0); // delete the entry from header
+                            continue;
+                        }
+                        needsHeaderRecalc |= failedToAllocate;
+                        // Paper end - recalculate header on header corruption
+                     }
+                 }
+                // Paper start - recalculate header on header corruption
+                // we move the recalc here so comparison to old header is correct when logging to console
+                if (needsHeaderRecalc) { // true if header gave us overlapping allocations or had other issues
+                    LOGGER.error("Recalculating regionfile " + this.path.toAbsolutePath() + ", header gave erroneous offsets & locations");
+                    this.recalculateHeader();
+                }
+                // Paper end
+             }
+ 
+         }
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+     }
+ 
+     private Path getExternalChunkPath(ChunkPos chunkPos) {
+-        String s = "c." + chunkPos.x + "." + chunkPos.z + ".mcc";
+        String s = "c." + chunkPos.x + "." + chunkPos.z + ".mcc"; // Paper - diff on change
+ 
+         return this.externalFileDir.resolve(s);
+     }
+ 
+    // Paper start
+    private static ChunkPos getOversizedChunkPair(Path file) {
+        String fileName = file.getFileName().toString();
+
+        if (!fileName.startsWith("c.") || !fileName.endsWith(".mcc")) {
+            return null;
+        }
+
+        String[] split = fileName.split("\\.");
+
+        if (split.length != 4) {
+            return null;
+        }
+
+        try {
+            int x = Integer.parseInt(split[1]);
+            int z = Integer.parseInt(split[2]);
+
+            return new ChunkPos(x, z);
+        } catch (NumberFormatException ex) {
+            return null;
+        }
+    }
+    // Paper end
+
+     @Nullable
+     public synchronized DataInputStream getChunkDataInputStream(ChunkPos pos) throws IOException {
+         int i = this.getOffset(pos);
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+             ((java.nio.Buffer) bytebuffer).flip(); // CraftBukkit - decompile error
+             if (bytebuffer.remaining() < 5) {
+                 RegionFile.LOGGER.error("Chunk {} header is truncated: expected {} but read {}", new Object[]{pos, l, bytebuffer.remaining()});
+                // Paper start - recalculate header on regionfile corruption
+                if (this.canRecalcHeader && this.recalculateHeader()) {
+                    return this.getChunkDataInputStream(pos);
+                }
+                // Paper end - recalculate header on regionfile corruption
+                 return null;
+             } else {
+                 int i1 = bytebuffer.getInt();
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+ 
+                 if (i1 == 0) {
+                     RegionFile.LOGGER.warn("Chunk {} is allocated, but stream is missing", pos);
+                    // Paper start - recalculate header on regionfile corruption
+                    if (this.canRecalcHeader && this.recalculateHeader()) {
+                        return this.getChunkDataInputStream(pos);
+                    }
+                    // Paper end - recalculate header on regionfile corruption
+                     return null;
+                 } else {
+                     int j1 = i1 - 1;
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+                     if (RegionFile.isExternalStreamChunk(b0)) {
+                         if (j1 != 0) {
+                             RegionFile.LOGGER.warn("Chunk has both internal and external streams");
+                            // Paper start - recalculate header on regionfile corruption
+                            if (this.canRecalcHeader && this.recalculateHeader()) {
+                                return this.getChunkDataInputStream(pos);
+                            }
+                            // Paper end - recalculate header on regionfile corruption
+                         }
+ 
+-                        return this.createExternalChunkInputStream(pos, RegionFile.getExternalChunkVersion(b0));
+                        // Paper start - recalculate header on regionfile corruption
+                        final DataInputStream ret = this.createExternalChunkInputStream(pos, RegionFile.getExternalChunkVersion(b0));
+                        if (ret == null && this.canRecalcHeader && this.recalculateHeader()) {
+                            return this.getChunkDataInputStream(pos);
+                        }
+                        return ret;
+                        // Paper end - recalculate header on regionfile corruption
+                     } else if (j1 > bytebuffer.remaining()) {
+                         RegionFile.LOGGER.error("Chunk {} stream is truncated: expected {} but read {}", new Object[]{pos, j1, bytebuffer.remaining()});
+                        // Paper start - recalculate header on regionfile corruption
+                        if (this.canRecalcHeader && this.recalculateHeader()) {
+                            return this.getChunkDataInputStream(pos);
+                        }
+                        // Paper end - recalculate header on regionfile corruption
+                         return null;
+                     } else if (j1 < 0) {
+                         RegionFile.LOGGER.error("Declared size {} of chunk {} is negative", i1, pos);
+                        // Paper start - recalculate header on regionfile corruption
+                        if (this.canRecalcHeader && this.recalculateHeader()) {
+                            return this.getChunkDataInputStream(pos);
+                        }
+                        // Paper end - recalculate header on regionfile corruption
+                         return null;
+                     } else {
+                         JvmProfiler.INSTANCE.onRegionFileRead(this.info, pos, this.version, j1);
+-                        return this.createChunkInputStream(pos, b0, RegionFile.createStream(bytebuffer, j1));
+                        // Paper start - recalculate header on regionfile corruption
+                        final DataInputStream ret = this.createChunkInputStream(pos, b0, RegionFile.createStream(bytebuffer, j1));
+                        if (ret == null && this.canRecalcHeader && this.recalculateHeader()) {
+                            return this.getChunkDataInputStream(pos);
+                        }
+                        return ret;
+                        // Paper end - recalculate header on regionfile corruption
+                     }
+                 }
+             }
+@@ -0,0 +0,0 @@ public class RegionFile implements AutoCloseable, ca.spottedleaf.moonrise.patche
+     }
+ 
+     private ByteBuffer createExternalStub() {
+        // Paper start - add version param
+        return this.createExternalStub(this.version);
+    }
+    private ByteBuffer createExternalStub(RegionFileVersion version) {
+        // Paper end - add version param
+         ByteBuffer bytebuffer = ByteBuffer.allocate(5);
+ 
+         bytebuffer.putInt(1);
+-        bytebuffer.put((byte) (this.version.getId() | 128));
+        bytebuffer.put((byte) (version.getId() | 128)); // Paper - replace with version param
+         ((java.nio.Buffer) bytebuffer).flip(); // CraftBukkit - decompile error
+         return bytebuffer;
+     }
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise
+         }
+     }
+     // Paper end - rewrite chunk system
+    // Paper start - recalculate region file headers
+    private final boolean isChunkData;
+
+    public static boolean isChunkDataFolder(Path path) {
+        return path.toFile().getName().equalsIgnoreCase("region");
+    }
+
+    @Nullable
+    public static ChunkPos getRegionFileCoordinates(Path file) {
+        String fileName = file.getFileName().toString();
+        if (!fileName.startsWith("r.") || !fileName.endsWith(".mca")) {
+            return null;
+        }
+
+        String[] split = fileName.split("\\.");
+
+        if (split.length != 4) {
+            return null;
+        }
+
+        try {
+            int x = Integer.parseInt(split[1]);
+            int z = Integer.parseInt(split[2]);
+
+            return new ChunkPos(x << 5, z << 5);
+        } catch (NumberFormatException ex) {
+            return null;
+        }
+    }
+    // Paper end
+ 
+     protected RegionFileStorage(RegionStorageInfo storageKey, Path directory, boolean dsync) { // Paper - protected
+         this.folder = directory;
+         this.sync = dsync;
+         this.info = storageKey;
+        this.isChunkData = isChunkDataFolder(this.folder); // Paper - recalculate region file headers
+     }
+ 
+     // Paper start - rewrite chunk system
+@@ -0,0 +0,0 @@ public class RegionFileStorage implements AutoCloseable, ca.spottedleaf.moonrise
+             try {
+                 if (datainputstream != null) {
+                     nbttagcompound = NbtIo.read((DataInput) datainputstream);
+                    // Paper start - recover from corrupt regionfile header
+                    if (this.isChunkData) {
+                        ChunkPos chunkPos = SerializableChunkData.getChunkCoordinate(nbttagcompound);
+                        if (!chunkPos.equals(pos)) {
+                            net.minecraft.server.MinecraftServer.LOGGER.error("Attempting to read chunk data at " + pos + " but got chunk data for " + chunkPos + " instead! Attempting regionfile recalculation for regionfile " + regionfile.getPath().toAbsolutePath());
+                            if (regionfile.recalculateHeader()) {
+                                return this.read(pos);
+                            }
+                            net.minecraft.server.MinecraftServer.LOGGER.error("Can't recalculate regionfile header, regenerating chunk " + pos + " for " + regionfile.getPath().toAbsolutePath());
+                            return null;
+                        }
+                    }
+                    // Paper end - recover from corrupt regionfile header
+                     break label43;
+                 }
+ 
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileVersion.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileVersion.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileVersion.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileVersion.java
+@@ -0,0 +0,0 @@ import org.slf4j.Logger;
+ 
+ public class RegionFileVersion {
+     private static final Logger LOGGER = LogUtils.getLogger();
+-    private static final Int2ObjectMap<RegionFileVersion> VERSIONS = new Int2ObjectOpenHashMap<>();
+    public static final Int2ObjectMap<RegionFileVersion> VERSIONS = new Int2ObjectOpenHashMap<>(); // Paper - private -> public
+     private static final Object2ObjectMap<String, RegionFileVersion> VERSIONS_BY_NAME = new Object2ObjectOpenHashMap<>();
+     public static final RegionFileVersion VERSION_GZIP = register(
+         new RegionFileVersion(
+diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/SerializableChunkData.java b/src/main/java/net/minecraft/world/level/chunk/storage/SerializableChunkData.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/chunk/storage/SerializableChunkData.java
+++ b/src/main/java/net/minecraft/world/level/chunk/storage/SerializableChunkData.java
+@@ -0,0 +0,0 @@ public record SerializableChunkData(Registry<Biome> biomeRegistry, ChunkPos chun
+         }
+     }
+     // Paper end - guard against serializing mismatching coordinates
+    // Paper start - Attempt to recalculate regionfile header if it is corrupt
+    // TODO: Check on update
+    public static long getLastWorldSaveTime(final CompoundTag chunkData) {
+        final int dataVersion = ChunkStorage.getVersion(chunkData);
+        if (dataVersion < 2842) { // Level tag is removed after this version
+            final CompoundTag levelData = chunkData.getCompound("Level");
+            return levelData.getLong("LastUpdate");
+        } else {
+            return chunkData.getLong("LastUpdate");
+        }
+    }
+    // Paper end - Attempt to recalculate regionfile header if it is corrupt
+ 
+     // Paper start - Do not let the server load chunks from newer versions
+     private static final int CURRENT_DATA_VERSION = net.minecraft.SharedConstants.getCurrentVersion().getDataVersion().getVersion();
+@@ -0,0 +0,0 @@ public record SerializableChunkData(Registry<Biome> biomeRegistry, ChunkPos chun
+         nbttagcompound.putInt("xPos", this.chunkPos.x);
+         nbttagcompound.putInt("yPos", this.minSectionY);
+         nbttagcompound.putInt("zPos", this.chunkPos.z);
+-        nbttagcompound.putLong("LastUpdate", this.lastUpdateTime);
+        nbttagcompound.putLong("LastUpdate", this.lastUpdateTime); // Paper - Diff on change
+         nbttagcompound.putLong("InhabitedTime", this.inhabitedTime);
+         nbttagcompound.putString("Status", BuiltInRegistries.CHUNK_STATUS.getKey(this.chunkStatus).toString());
+         DataResult<Tag> dataresult; // CraftBukkit - decompile error
--- a/feature-patches/1065-Improve-performance-of-mass-crafts.patch
+++ b/feature-patches/1065-Improve-performance-of-mass-crafts.patch
@ -0,0 +1,92 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Sun, 13 Aug 2023 15:41:52 -0700
+Subject: [PATCH] Improve performance of mass crafts
+
+When the server crafts all available items in CraftingMenu or InventoryMenu the game
+checks either 4 or 9 times for each individual craft for a matching recipe for that container.
+This check can be expensive if 64 total crafts are being performed with the recipe matching logic
+being run 64 * 9 + 64 times. A breakdown of those times is below. This patch caches the last matching
+recipe so that it is checked first and only if it doesn't match does the rest of the matching logic run.
+
+Shift-click crafts are processed one at a time, so shift clicking on an item in the result of a iron block craft
+where all the 9 inputs are full stacks of iron will run 64 iron block crafts. For each of those crafts, the
+'remaining' blocks are calculated. This is due to recipes that have leftover items like buckets. This is done
+for each craft, and done once to get the full 9 leftover items which are usually air. Then 1 item is removed
+from each of the 9 inputs and each time that happens, logic is triggered to update the result itemstack. So
+for each craft, that logic is run 9 times (hence the 64 * 9). The + 64 is from the 64 checks for remaining items.
+
+After this patch, the full iteration over all recipes checking for a match should run once for a full craft to find the
+initial recipe match. Then that recipe will be checked first for all future recipe match checks.
+
+diff --git a/src/main/java/net/minecraft/world/inventory/CraftingContainer.java b/src/main/java/net/minecraft/world/inventory/CraftingContainer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/inventory/CraftingContainer.java
+++ b/src/main/java/net/minecraft/world/inventory/CraftingContainer.java
+@@ -0,0 +0,0 @@ public interface CraftingContainer extends Container, StackedContentsCompatible
+     List<ItemStack> getItems();
+ 
+     // CraftBukkit start
+-    default RecipeHolder<?> getCurrentRecipe() {
+    default RecipeHolder<net.minecraft.world.item.crafting.CraftingRecipe> getCurrentRecipe() { // Paper - use correct generic
+         return null;
+     }
+ 
+-    default void setCurrentRecipe(RecipeHolder<?> recipe) {
+    default void setCurrentRecipe(RecipeHolder<net.minecraft.world.item.crafting.CraftingRecipe> recipe) { // Paper - use correct generic
+     }
+     // CraftBukkit end
+ 
+diff --git a/src/main/java/net/minecraft/world/inventory/CraftingMenu.java b/src/main/java/net/minecraft/world/inventory/CraftingMenu.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/inventory/CraftingMenu.java
+++ b/src/main/java/net/minecraft/world/inventory/CraftingMenu.java
+@@ -0,0 +0,0 @@ public class CraftingMenu extends AbstractCraftingMenu {
+         CraftingInput craftinginput = craftingInventory.asCraftInput();
+         ServerPlayer entityplayer = (ServerPlayer) player;
+         ItemStack itemstack = ItemStack.EMPTY;
+        if (recipe == null) recipe = craftingInventory.getCurrentRecipe(); // Paper - Perf: Improve mass crafting; check last recipe used first
+         Optional<RecipeHolder<CraftingRecipe>> optional = world.getServer().getRecipeManager().getRecipeFor(RecipeType.CRAFTING, craftinginput, world, recipe);
+         craftingInventory.setCurrentRecipe(optional.orElse(null)); // CraftBukkit
+ 
+diff --git a/src/main/java/net/minecraft/world/inventory/ResultSlot.java b/src/main/java/net/minecraft/world/inventory/ResultSlot.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/inventory/ResultSlot.java
+++ b/src/main/java/net/minecraft/world/inventory/ResultSlot.java
+@@ -0,0 +0,0 @@ public class ResultSlot extends Slot {
+     private NonNullList<ItemStack> getRemainingItems(CraftingInput input, Level world) {
+         return world instanceof ServerLevel serverLevel
+             ? serverLevel.recipeAccess()
+-                .getRecipeFor(RecipeType.CRAFTING, input, serverLevel)
+                .getRecipeFor(RecipeType.CRAFTING, input, serverLevel, this.craftSlots.getCurrentRecipe()) // Paper - Perf: Improve mass crafting; check last recipe used first
+                 .map(recipe -> recipe.value().getRemainingItems(input))
+                 .orElseGet(() -> copyAllInputItems(input))
+             : CraftingRecipe.defaultCraftingReminder(input);
+diff --git a/src/main/java/net/minecraft/world/inventory/TransientCraftingContainer.java b/src/main/java/net/minecraft/world/inventory/TransientCraftingContainer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/inventory/TransientCraftingContainer.java
+++ b/src/main/java/net/minecraft/world/inventory/TransientCraftingContainer.java
+@@ -0,0 +0,0 @@ public class TransientCraftingContainer implements CraftingContainer {
+ 
+     // CraftBukkit start - add fields
+     public List<HumanEntity> transaction = new java.util.ArrayList<HumanEntity>();
+-    private RecipeHolder<?> currentRecipe;
+    private RecipeHolder<net.minecraft.world.item.crafting.CraftingRecipe> currentRecipe; // Paper - use correct generic
+     public Container resultInventory;
+     private Player owner;
+     private int maxStack = MAX_STACK;
+@@ -0,0 +0,0 @@ public class TransientCraftingContainer implements CraftingContainer {
+     }
+ 
+     @Override
+-    public RecipeHolder<?> getCurrentRecipe() {
+    public RecipeHolder<net.minecraft.world.item.crafting.CraftingRecipe> getCurrentRecipe() { // Paper - use correct generic
+         return this.currentRecipe;
+     }
+ 
+     @Override
+-    public void setCurrentRecipe(RecipeHolder<?> currentRecipe) {
+    public void setCurrentRecipe(RecipeHolder<net.minecraft.world.item.crafting.CraftingRecipe> currentRecipe) { // Paper - use correct generic
+         this.currentRecipe = currentRecipe;
+     }
+ 
--- a/feature-patches/1066-Incremental-chunk-and-player-saving.patch
+++ b/feature-patches/1066-Incremental-chunk-and-player-saving.patch
@ -0,0 +1,133 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Shane Freeder <theboyetronic@gmail.com>
+Date: Sun, 9 Jun 2019 03:53:22 +0100
+Subject: [PATCH] Incremental chunk and player saving
+
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+         try {
+             this.isSaving = true;
+-            this.getPlayerList().saveAll();
+            this.getPlayerList().saveAll(); // Paper - Incremental chunk and player saving; diff on change
+             flag3 = this.saveAllChunks(suppressLogs, flush, force);
+         } finally {
+             this.isSaving = false;
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+         }
+ 
+         --this.ticksUntilAutosave;
+-        if (this.autosavePeriod > 0 && this.ticksUntilAutosave <= 0) { // CraftBukkit
+-            this.autoSave();
+        // Paper start - Incremental chunk and player saving
+        final ProfilerFiller profiler = Profiler.get();
+        int playerSaveInterval = io.papermc.paper.configuration.GlobalConfiguration.get().playerAutoSave.rate;
+        if (playerSaveInterval < 0) {
+            playerSaveInterval = autosavePeriod;
+        }
+        profiler.push("save");
+        final boolean fullSave = autosavePeriod > 0 && this.tickCount % autosavePeriod == 0;
+        try {
+            this.isSaving = true;
+            if (playerSaveInterval > 0) {
+                this.playerList.saveAll(playerSaveInterval);
+            }
+            for (final ServerLevel level : this.getAllLevels()) {
+                if (level.paperConfig().chunks.autoSaveInterval.value() > 0) {
+                    level.saveIncrementally(fullSave);
+                }
+            }
+        } finally {
+            this.isSaving = false;
+         }
+        profiler.pop();
+        // Paper end - Incremental chunk and player saving
+ 
+         ProfilerFiller gameprofilerfiller = Profiler.get();
+ 
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+         return !this.server.isUnderSpawnProtection(this, pos, player) && this.getWorldBorder().isWithinBounds(pos);
+     }
+ 
+    // Paper start - Incremental chunk and player saving
+    public void saveIncrementally(boolean doFull) {
+        ServerChunkCache chunkproviderserver = this.getChunkSource();
+
+        if (doFull) {
+            org.bukkit.Bukkit.getPluginManager().callEvent(new org.bukkit.event.world.WorldSaveEvent(getWorld()));
+        }
+
+        if (doFull) {
+            this.saveLevelData(true);
+        }
+        // chunk autosave is already called by the ChunkSystem during unload processing (ChunkMap#processUnloads)
+        // Copied from save()
+        // CraftBukkit start - moved from MinecraftServer.saveChunks
+        if (doFull) { // Paper
+            ServerLevel worldserver1 = this;
+            this.serverLevelData.setWorldBorder(worldserver1.getWorldBorder().createSettings());
+            this.serverLevelData.setCustomBossEvents(this.server.getCustomBossEvents().save(this.registryAccess()));
+            this.convertable.saveDataTag(this.server.registryAccess(), this.serverLevelData, this.server.getPlayerList().getSingleplayerData());
+        }
+        // CraftBukkit end
+    }
+    // Paper end - Incremental chunk and player saving
+
+     public void save(@Nullable ProgressListener progressListener, boolean flush, boolean savingDisabled) {
+         // Paper start - add close param
+         this.save(progressListener, flush, savingDisabled, false);
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ import org.bukkit.inventory.MainHand;
+ public class ServerPlayer extends net.minecraft.world.entity.player.Player implements ca.spottedleaf.moonrise.patches.chunk_system.player.ChunkSystemServerPlayer { // Paper - rewrite chunk system
+ 
+     private static final Logger LOGGER = LogUtils.getLogger();
+    public long lastSave = MinecraftServer.currentTick; // Paper - Incremental chunk and player saving
+     private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_XZ = 32;
+     private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_Y = 10;
+     private static final int FLY_STAT_RECORDING_SPEED = 25;
+diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+ 
+     protected void save(ServerPlayer player) {
+         if (!player.getBukkitEntity().isPersistent()) return; // CraftBukkit
+        player.lastSave = MinecraftServer.currentTick; // Paper - Incremental chunk and player saving
+         this.playerIo.save(player);
+         ServerStatsCounter serverstatisticmanager = (ServerStatsCounter) player.getStats(); // CraftBukkit
+ 
+@@ -0,0 +0,0 @@ public abstract class PlayerList {
+     }
+ 
+     public void saveAll() {
+        // Paper start - Incremental chunk and player saving
+        this.saveAll(-1);
+    }
+
+    public void saveAll(int interval) {
+         io.papermc.paper.util.MCUtil.ensureMain("Save Players" , () -> { // Paper - Ensure main
+        int numSaved = 0;
+        long now = MinecraftServer.currentTick;
+         for (int i = 0; i < this.players.size(); ++i) {
+-            this.save((ServerPlayer) this.players.get(i));
+            final ServerPlayer player = this.players.get(i);
+            if (interval == -1 || now - player.lastSave >= interval) {
+                this.save(player);
+                if (interval != -1 && ++numSaved >= io.papermc.paper.configuration.GlobalConfiguration.get().playerAutoSave.maxPerTick()) { break; }
+            }
+            // Paper end - Incremental chunk and player saving
+         }
+ 
+         return null; }); // Paper - ensure main
--- a/feature-patches/1067-Optimise-general-POI-access.patch
+++ b/feature-patches/1067-Optimise-general-POI-access.patch
--- a/feature-patches/1068-Fix-entity-tracker-desync-when-new-players-are-added.patch
+++ b/feature-patches/1068-Fix-entity-tracker-desync-when-new-players-are-added.patch
@ -0,0 +1,105 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Tue, 20 Feb 2024 18:24:16 -0800
+Subject: [PATCH] Fix entity tracker desync when new players are added to the
+ tracker
+
+The delta position packet instructs the client to update
+the entity position by a position difference. However, this position
+difference is relative to the last position in the entity tracker
+state, not the last position which has been sent to the player. As
+a result, if the last position the player has recorded is different
+than the one stored in the entity tracker (which occurs when a new
+player is added to an existing entity tracker state) then the sent
+position difference will cause a position desync for the client.
+
+We can resolve this problem by either tracking the last position
+sent per-player, or by simply resetting the last sent position
+in the entity tracker state every time a new player is added.
+Resetting the last sent position every time a new player is
+added to the tracker is just easier to do, so that is what
+this patch does.
+
+This patch also fixes entities appearing to disappear when
+teleporting to players by changing the initial position
+in the spawn packet to the entities current tracking position.
+When teleporting, the spawn packet will contain the old position
+which is most likely in an unloaded chunk - which means that the
+client will not tick the entity and thus not lerp the entity
+from its old position to its new position.
+
+diff --git a/src/main/java/net/minecraft/network/protocol/game/ClientboundAddEntityPacket.java b/src/main/java/net/minecraft/network/protocol/game/ClientboundAddEntityPacket.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/network/protocol/game/ClientboundAddEntityPacket.java
+++ b/src/main/java/net/minecraft/network/protocol/game/ClientboundAddEntityPacket.java
+@@ -0,0 +0,0 @@ public class ClientboundAddEntityPacket implements Packet<ClientGamePacketListen
+         this(
+             entity.getId(),
+             entity.getUUID(),
+-            entityTrackerEntry.getPositionBase().x(),
+-            entityTrackerEntry.getPositionBase().y(),
+-            entityTrackerEntry.getPositionBase().z(),
+            // Paper start - fix entity tracker desync
+            entity.trackingPosition().x(),
+            entity.trackingPosition().y(),
+            entity.trackingPosition().z(),
+            // Paper end - fix entity tracker desync
+             entityTrackerEntry.getLastSentXRot(),
+             entityTrackerEntry.getLastSentYRot(),
+             entity.getType(),
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -0,0 +0,0 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+                         this.serverEntity.addPairing(player);
+                         }
+                         // Paper end - entity tracking events
+                        this.serverEntity.onPlayerAdd(); // Paper - fix desync when a player is added to the tracker
+                     }
+                 } else if (this.seenBy.remove(player.connection)) {
+                     this.serverEntity.removePairing(player);
+diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
+@@ -0,0 +0,0 @@ public class ServerEntity {
+         this.trackedDataValues = entity.getEntityData().getNonDefaultValues();
+     }
+ 
+    // Paper start - fix desync when a player is added to the tracker
+    private boolean forceStateResync;
+    public void onPlayerAdd() {
+        this.forceStateResync = true;
+    }
+    // Paper end - fix desync when a player is added to the tracker
+
+     public void sendChanges() {
+         // Paper start - optimise collisions
+         if (((ca.spottedleaf.moonrise.patches.chunk_system.entity.ChunkSystemEntity)this.entity).moonrise$isHardColliding()) {
+@@ -0,0 +0,0 @@ public class ServerEntity {
+             }
+         }
+ 
+-        if (this.tickCount % this.updateInterval == 0 || this.entity.hasImpulse || this.entity.getEntityData().isDirty()) {
+        if (this.forceStateResync || this.tickCount % this.updateInterval == 0 || this.entity.hasImpulse || this.entity.getEntityData().isDirty()) { // Paper - fix desync when a player is added to the tracker
+             byte b0 = Mth.packDegrees(this.entity.getYRot());
+             byte b1 = Mth.packDegrees(this.entity.getXRot());
+             boolean flag = Math.abs(b0 - this.lastSentYRot) >= 1 || Math.abs(b1 - this.lastSentXRot) >= 1;
+@@ -0,0 +0,0 @@ public class ServerEntity {
+                     long k = this.positionCodec.encodeZ(vec3d);
+                     boolean flag5 = i < -32768L || i > 32767L || j < -32768L || j > 32767L || k < -32768L || k > 32767L;
+ 
+-                    if (!flag5 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.onGround()) {
+                    if (!this.forceStateResync && !flag5 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.onGround()) { // Paper - fix desync when a player is added to the tracker
+                         if ((!flag2 || !flag) && !(this.entity instanceof AbstractArrow)) {
+                             if (flag2) {
+                                 packet1 = new ClientboundMoveEntityPacket.Pos(this.entity.getId(), (short) ((int) i), (short) ((int) j), (short) ((int) k), this.entity.onGround());
+@@ -0,0 +0,0 @@ public class ServerEntity {
+             }
+ 
+             this.entity.hasImpulse = false;
+            this.forceStateResync = false; // Paper - fix desync when a player is added to the tracker
+         }
+ 
+         ++this.tickCount;
--- a/feature-patches/1069-Lag-compensation-ticks.patch
+++ b/feature-patches/1069-Lag-compensation-ticks.patch
@ -0,0 +1,129 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Sat, 23 Sep 2023 22:05:35 -0700
+Subject: [PATCH] Lag compensation ticks
+
+Areas affected by lag comepnsation:
+ - Block breaking and destroying
+ - Eating food items
+
+diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+ 
+     public volatile Thread shutdownThread; // Paper
+     public volatile boolean abnormalExit = false; // Paper
+    public static final long SERVER_INIT = System.nanoTime(); // Paper - Lag compensation
+ 
+     public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
+         ca.spottedleaf.dataconverter.minecraft.datatypes.MCTypeRegistry.init(); // Paper - rewrite data converter system
+@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+             worldserver.hasPhysicsEvent = org.bukkit.event.block.BlockPhysicsEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - BlockPhysicsEvent
+             worldserver.hasEntityMoveEvent = io.papermc.paper.event.entity.EntityMoveEvent.getHandlerList().getRegisteredListeners().length > 0; // Paper - Add EntityMoveEvent
+             net.minecraft.world.level.block.entity.HopperBlockEntity.skipHopperEvents = worldserver.paperConfig().hopper.disableMoveEvent || org.bukkit.event.inventory.InventoryMoveItemEvent.getHandlerList().getRegisteredListeners().length == 0; // Paper - Perf: Optimize Hoppers
+            worldserver.updateLagCompensationTick(); // Paper - lag compensation
+ 
+             gameprofilerfiller.push(() -> {
+                 String s = String.valueOf(worldserver);
+diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
+@@ -0,0 +0,0 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
+         );
+     }
+     // Paper end - chunk tick iteration
+    // Paper start - lag compensation
+    private long lagCompensationTick = net.minecraft.server.MinecraftServer.SERVER_INIT;
+
+    public long getLagCompensationTick() {
+        return this.lagCompensationTick;
+    }
+
+    public void updateLagCompensationTick() {
+        this.lagCompensationTick = (System.nanoTime() - net.minecraft.server.MinecraftServer.SERVER_INIT) / (java.util.concurrent.TimeUnit.MILLISECONDS.toNanos(50L));
+    }
+    // Paper end - lag compensation
+ 
+     // Add env and gen to constructor, IWorldDataServer -> WorldDataServer
+     public ServerLevel(MinecraftServer minecraftserver, Executor executor, LevelStorageSource.LevelStorageAccess convertable_conversionsession, PrimaryLevelData iworlddataserver, ResourceKey<Level> resourcekey, LevelStem worlddimension, ChunkProgressListener worldloadlistener, boolean flag, long i, List<CustomSpawner> list, boolean flag1, @Nullable RandomSequences randomsequences, org.bukkit.World.Environment env, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider) {
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayerGameMode.java
+@@ -0,0 +0,0 @@ public class ServerPlayerGameMode {
+     }
+ 
+     public void tick() {
+-        this.gameTicks = MinecraftServer.currentTick; // CraftBukkit;
+        this.gameTicks = (int)this.level.getLagCompensationTick(); // CraftBukkit; // Paper - lag compensation
+         BlockState iblockdata;
+ 
+         if (this.hasDelayedDestroy) {
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         this.resendPossiblyDesyncedDataValues(java.util.List.of(DATA_LIVING_ENTITY_FLAGS), serverPlayer);
+     }
+     // Paper end - Properly cancel usable items
+    // Paper start - lag compensate eating
+    protected long eatStartTime;
+    protected int totalEatTimeTicks;
+    // Paper end - lag compensate eating
+     private void updatingUsingItem() {
+         if (this.isUsingItem()) {
+             if (ItemStack.isSameItem(this.getItemInHand(this.getUsedItemHand()), this.useItem)) {
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+ 
+     protected void updateUsingItem(ItemStack stack) {
+         stack.onUseTick(this.level(), this, this.getUseItemRemainingTicks());
+-        if (--this.useItemRemaining == 0 && !this.level().isClientSide && !stack.useOnRelease()) {
+        // Paper start - lag compensate eating
+        // we add 1 to the expected time to avoid lag compensating when we should not
+        final boolean shouldLagCompensate = this.useItem.has(DataComponents.FOOD) && this.eatStartTime != -1 && (System.nanoTime() - this.eatStartTime) > ((1L + this.totalEatTimeTicks) * 50L * (1000L * 1000L));
+        if ((--this.useItemRemaining == 0 || shouldLagCompensate) && !this.level().isClientSide && !stack.useOnRelease()) {
+            this.useItemRemaining = 0;
+            // Paper end - lag compensate eating
+             this.completeUsingItem();
+         }
+ 
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+ 
+         if (!itemstack.isEmpty() && !this.isUsingItem() || forceUpdate) { // Paper - Prevent consuming the wrong itemstack
+             this.useItem = itemstack;
+-            this.useItemRemaining = itemstack.getUseDuration(this);
+            // Paper start - lag compensate eating
+            this.useItemRemaining = this.totalEatTimeTicks = itemstack.getUseDuration(this);
+            this.eatStartTime = System.nanoTime();
+            // Paper end - lag compensate eating
+             if (!this.level().isClientSide) {
+                 this.setLivingEntityFlag(1, true);
+                 this.setLivingEntityFlag(2, hand == InteractionHand.OFF_HAND);
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+                 }
+             } else if (!this.isUsingItem() && !this.useItem.isEmpty()) {
+                 this.useItem = ItemStack.EMPTY;
+-                this.useItemRemaining = 0;
+                // Paper start - lag compensate eating
+                this.useItemRemaining = this.totalEatTimeTicks = 0;
+                this.eatStartTime = -1L;
+                // Paper end - lag compensate eating
+             }
+         }
+ 
+@@ -0,0 +0,0 @@ public abstract class LivingEntity extends Entity implements Attackable {
+         }
+ 
+         this.useItem = ItemStack.EMPTY;
+-        this.useItemRemaining = 0;
+        // Paper start - lag compensate eating
+        this.useItemRemaining = this.totalEatTimeTicks = 0;
+        this.eatStartTime = -1L;
+        // Paper end - lag compensate eating
+     }
+ 
+     public boolean isBlocking() {
--- a/feature-patches/1070-Optimise-collision-checking-in-player-move-packet-ha.patch
+++ b/feature-patches/1070-Optimise-collision-checking-in-player-move-packet-ha.patch
@ -0,0 +1,168 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Spottedleaf <Spottedleaf@users.noreply.github.com>
+Date: Thu, 2 Jul 2020 12:02:43 -0700
+Subject: [PATCH] Optimise collision checking in player move packet handling
+
+Move collision logic to just the hasNewCollision call instead of getCubes + hasNewCollision
+
+diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                     return;
+                 }
+ 
+-                boolean flag = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
+                AABB oldBox = entity.getBoundingBox(); // Paper - copy from player movement packet
+ 
+                 d6 = d3 - this.vehicleLastGoodX; // Paper - diff on change, used for checking large move vectors above
+                 d7 = d4 - this.vehicleLastGoodY; // Paper - diff on change, used for checking large move vectors above
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                 }
+ 
+                 entity.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
+                boolean didCollide = toX != entity.getX() || toY != entity.getY() || toZ != entity.getZ(); // Paper - needed here as the difference in Y can be reset - also note: this is only a guess at whether collisions took place, floating point errors can make this true when it shouldn't be...
+                 double d11 = d7;
+ 
+                 d6 = d3 - entity.getX();
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                 boolean flag2 = false;
+ 
+                 if (d10 > org.spigotmc.SpigotConfig.movedWronglyThreshold) { // Spigot
+-                    flag2 = true;
+                    flag2 = true; // Paper - diff on change, this should be moved wrongly
+                     ServerGamePacketListenerImpl.LOGGER.warn("{} (vehicle of {}) moved wrongly! {}", new Object[]{entity.getName().getString(), this.player.getName().getString(), Math.sqrt(d10)});
+                 }
+ 
+                 entity.absMoveTo(d3, d4, d5, f, f1);
+                 this.player.absMoveTo(d3, d4, d5, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
+-                boolean flag3 = worldserver.noCollision(entity, entity.getBoundingBox().deflate(0.0625D));
+ 
+-                if (flag && (flag2 || !flag3)) {
+                // Paper start - optimise out extra getCubes
+                boolean teleportBack = flag2; // violating this is always a fail
+                if (!teleportBack) {
+                    // note: only call after setLocation, or else getBoundingBox is wrong
+                    AABB newBox = entity.getBoundingBox();
+                    if (didCollide || !oldBox.equals(newBox)) {
+                        teleportBack = this.hasNewCollision(worldserver, entity, oldBox, newBox);
+                    } // else: no collision at all detected, why do we care?
+                }
+                if (teleportBack) { // Paper end - optimise out extra getCubes
+                     entity.absMoveTo(d0, d1, d2, f, f1);
+                     this.player.absMoveTo(d0, d1, d2, this.player.getYRot(), this.player.getXRot()); // CraftBukkit
+                     this.send(ClientboundMoveVehiclePacket.fromEntity(entity));
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+     }
+ 
+     private boolean noBlocksAround(Entity entity) {
+-        return entity.level().getBlockStates(entity.getBoundingBox().inflate(0.0625D).expandTowards(0.0D, -0.55D, 0.0D)).allMatch(BlockBehaviour.BlockStateBase::isAir);
+        // Paper start - stop using streams, this is already a known fixed problem in Entity#move
+        AABB box = entity.getBoundingBox().inflate(0.0625D).expandTowards(0.0D, -0.55D, 0.0D);
+        int minX = Mth.floor(box.minX);
+        int minY = Mth.floor(box.minY);
+        int minZ = Mth.floor(box.minZ);
+        int maxX = Mth.floor(box.maxX);
+        int maxY = Mth.floor(box.maxY);
+        int maxZ = Mth.floor(box.maxZ);
+
+        Level world = entity.level();
+        BlockPos.MutableBlockPos pos = new BlockPos.MutableBlockPos();
+
+        for (int y = minY; y <= maxY; ++y) {
+            for (int z = minZ; z <= maxZ; ++z) {
+                for (int x = minX; x <= maxX; ++x) {
+                    pos.set(x, y, z);
+                    BlockState type = world.getBlockStateIfLoaded(pos);
+                    if (type != null && !type.isAir()) {
+                        return false;
+                    }
+                }
+            }
+        }
+
+        return true;
+        // Paper end - stop using streams, this is already a known fixed problem in Entity#move
+     }
+ 
+     @Override
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                                 }
+                             }
+ 
+-                            AABB axisalignedbb = this.player.getBoundingBox();
+                            AABB axisalignedbb = this.player.getBoundingBox(); // Paper - diff on change, should be old AABB
+ 
+                             d6 = d0 - this.lastGoodX; // Paper - diff on change, used for checking large move vectors above
+                             d7 = d1 - this.lastGoodY; // Paper - diff on change, used for checking large move vectors above
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ 
+                             this.player.move(MoverType.PLAYER, new Vec3(d6, d7, d8));
+                             this.player.onGround = packet.isOnGround(); // CraftBukkit - SPIGOT-5810, SPIGOT-5835, SPIGOT-6828: reset by this.player.move
+                            boolean didCollide = toX != this.player.getX() || toY != this.player.getY() || toZ != this.player.getZ(); // Paper - needed here as the difference in Y can be reset - also note: this is only a guess at whether collisions took place, floating point errors can make this true when it shouldn't be...
+                             // Paper start - prevent position desync
+                             if (this.awaitingPositionFromClient != null) {
+                                 return; // ... thanks Mojang for letting move calls teleport across dimensions.
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+                             }
+ 
+                             // Paper start - Add fail move event
+-                            boolean teleportBack = !this.player.noPhysics && !this.player.isSleeping() && (movedWrongly && worldserver.noCollision(this.player, axisalignedbb) || this.isPlayerCollidingWithAnythingNew(worldserver, axisalignedbb, d0, d1, d2));
+                            // Paper start - optimise out extra getCubes
+                            boolean teleportBack = !this.player.noPhysics && !this.player.isSleeping() && movedWrongly;
+                            this.player.absMoveTo(d0, d1, d2, f, f1); // prevent desync by tping to the set position, dropped for unknown reasons by mojang
+                            if (!this.player.noPhysics && !this.player.isSleeping() && !teleportBack) {
+                                AABB newBox = this.player.getBoundingBox();
+                                if (didCollide || !axisalignedbb.equals(newBox)) {
+                                    // note: only call after setLocation, or else getBoundingBox is wrong
+                                    teleportBack = this.hasNewCollision(worldserver, this.player, axisalignedbb, newBox);
+                                } // else: no collision at all detected, why do we care?
+                            }
+                            // Paper end - optimise out extra getCubes
+                             if (teleportBack) {
+                                 io.papermc.paper.event.player.PlayerFailMoveEvent event = fireFailMove(io.papermc.paper.event.player.PlayerFailMoveEvent.FailReason.CLIPPED_INTO_BLOCK,
+                                     toX, toY, toZ, toYaw, toPitch, false);
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+ 
+     private boolean updateAwaitingTeleport() {
+         if (this.awaitingPositionFromClient != null) {
+-            if (this.tickCount - this.awaitingTeleportTime > 20) {
+            if (false && this.tickCount - this.awaitingTeleportTime > 20) { // Paper - this will greatly screw with clients with > 1000ms RTT
+                 this.awaitingTeleportTime = this.tickCount;
+                 this.teleport(this.awaitingPositionFromClient.x, this.awaitingPositionFromClient.y, this.awaitingPositionFromClient.z, this.player.getYRot(), this.player.getXRot());
+             }
+@@ -0,0 +0,0 @@ public class ServerGamePacketListenerImpl extends ServerCommonPacketListenerImpl
+         }
+     }
+ 
+    // Paper start - optimise out extra getCubes
+    private boolean hasNewCollision(final ServerLevel world, final Entity entity, final AABB oldBox, final AABB newBox) {
+        final List<AABB> collisionsBB = new java.util.ArrayList<>();
+        final List<VoxelShape> collisionsVoxel = new java.util.ArrayList<>();
+        ca.spottedleaf.moonrise.patches.collisions.CollisionUtil.getCollisions(
+            world, entity, newBox, collisionsVoxel, collisionsBB,
+            ca.spottedleaf.moonrise.patches.collisions.CollisionUtil.COLLISION_FLAG_COLLIDE_WITH_UNLOADED_CHUNKS | ca.spottedleaf.moonrise.patches.collisions.CollisionUtil.COLLISION_FLAG_CHECK_BORDER,
+            null, null
+        );
+
+        for (int i = 0, len = collisionsBB.size(); i < len; ++i) {
+            final AABB box = collisionsBB.get(i);
+            if (!ca.spottedleaf.moonrise.patches.collisions.CollisionUtil.voxelShapeIntersect(box, oldBox)) {
+                return true;
+            }
+        }
+
+        for (int i = 0, len = collisionsVoxel.size(); i < len; ++i) {
+            final VoxelShape voxel = collisionsVoxel.get(i);
+            if (!ca.spottedleaf.moonrise.patches.collisions.CollisionUtil.voxelShapeIntersectNoEmpty(voxel, oldBox)) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+    // Paper end - optimise out extra getCubes
+     private boolean isPlayerCollidingWithAnythingNew(LevelReader world, AABB box, double newX, double newY, double newZ) {
+         AABB axisalignedbb1 = this.player.getBoundingBox().move(newX - this.player.getX(), newY - this.player.getY(), newZ - this.player.getZ());
+         Iterable<VoxelShape> iterable = world.getCollisions(this.player, axisalignedbb1.deflate(9.999999747378752E-6D));
--- a/feature-patches/1071-Optional-per-player-mob-spawns.patch
+++ b/feature-patches/1071-Optional-per-player-mob-spawns.patch
@ -0,0 +1,232 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: kickash32 <kickash32@gmail.com>
+Date: Mon, 19 Aug 2019 01:27:58 +0500
+Subject: [PATCH] Optional per player mob spawns
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -0,0 +0,0 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+     }
+ 
+     // Paper start
+    // Paper start - Optional per player mob spawns
+    public void updatePlayerMobTypeMap(final Entity entity) {
+        if (!this.level.paperConfig().entities.spawning.perPlayerMobSpawns) {
+            return;
+        }
+        final int index = entity.getType().getCategory().ordinal();
+
+        final ca.spottedleaf.moonrise.common.list.ReferenceList<ServerPlayer> inRange =
+            this.level.moonrise$getNearbyPlayers().getPlayers(entity.chunkPosition(), ca.spottedleaf.moonrise.common.misc.NearbyPlayers.NearbyMapType.TICK_VIEW_DISTANCE);
+        if (inRange == null) {
+            return;
+        }
+        final ServerPlayer[] backingSet = inRange.getRawDataUnchecked();
+        for (int i = 0, len = inRange.size(); i < len; i++) {
+            ++(backingSet[i].mobCounts[index]);
+        }
+    }
+     public int getMobCountNear(final ServerPlayer player, final net.minecraft.world.entity.MobCategory mobCategory) {
+-        return -1;
+        return player.mobCounts[mobCategory.ordinal()];
+        // Paper end - Optional per player mob spawns
+     }
+     // Paper end
+ 
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource implements ca.spottedleaf.moon
+                     gameprofilerfiller.popPush("shuffleChunks");
+                     // Paper start - chunk tick iteration optimisation
+                     this.shuffleRandom.setSeed(this.level.random.nextLong());
+-                    Util.shuffle(list, this.shuffleRandom);
+                    if (!this.level.paperConfig().entities.spawning.perPlayerMobSpawns) Util.shuffle(list, this.shuffleRandom); // Paper - Optional per player mob spawns; do not need this when per-player is enabled
+                     // Paper end - chunk tick iteration optimisation
+                     this.tickChunks(gameprofilerfiller, j, list);
+                     gameprofilerfiller.pop();
+@@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource implements ca.spottedleaf.moon
+     private void tickChunks(ProfilerFiller profiler, long timeDelta, List<LevelChunk> chunks) {
+         profiler.popPush("naturalSpawnCount");
+         int j = this.distanceManager.getNaturalSpawnChunkCount();
+-        NaturalSpawner.SpawnState spawnercreature_d = NaturalSpawner.createState(j, this.level.getAllEntities(), this::getFullChunk, new LocalMobCapCalculator(this.chunkMap));
+        // Paper start - Optional per player mob spawns
+        final int naturalSpawnChunkCount = j;
+        NaturalSpawner.SpawnState spawnercreature_d; // moved down
+        if ((this.spawnFriendlies || this.spawnEnemies) && this.level.paperConfig().entities.spawning.perPlayerMobSpawns) { // don't count mobs when animals and monsters are disabled
+            // re-set mob counts
+            for (ServerPlayer player : this.level.players) {
+                Arrays.fill(player.mobCounts, 0);
+            }
+            spawnercreature_d = NaturalSpawner.createState(naturalSpawnChunkCount, this.level.getAllEntities(), this::getFullChunk, null, true);
+        } else {
+            spawnercreature_d = NaturalSpawner.createState(naturalSpawnChunkCount, this.level.getAllEntities(), this::getFullChunk, !this.level.paperConfig().entities.spawning.perPlayerMobSpawns ? new LocalMobCapCalculator(this.chunkMap) : null, false);
+        }
+        // Paper end - Optional per player mob spawns
+ 
+         this.lastSpawnState = spawnercreature_d;
+         profiler.popPush("spawnAndTick");
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
+     public boolean queueHealthUpdatePacket;
+     public net.minecraft.network.protocol.game.ClientboundSetHealthPacket queuedHealthUpdatePacket;
+     // Paper end - cancellable death event
+    // Paper start - Optional per player mob spawns
+    public static final int MOBCATEGORY_TOTAL_ENUMS = net.minecraft.world.entity.MobCategory.values().length;
+    public final int[] mobCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper
+    // Paper end - Optional per player mob spawns
+ 
+     // CraftBukkit start
+     public CraftPlayer.TransferCookieConnection transferCookieConnection;
+diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+     private NaturalSpawner() {}
+ 
+     public static NaturalSpawner.SpawnState createState(int spawningChunkCount, Iterable<Entity> entities, NaturalSpawner.ChunkGetter chunkSource, LocalMobCapCalculator densityCapper) {
+        // Paper start - Optional per player mob spawns
+        return createState(spawningChunkCount, entities, chunkSource, densityCapper, false);
+    }
+
+    public static NaturalSpawner.SpawnState createState(int spawningChunkCount, Iterable<Entity> entities, NaturalSpawner.ChunkGetter chunkSource, LocalMobCapCalculator densityCapper, boolean countMobs) {
+        // Paper end - Optional per player mob spawns
+         PotentialCalculator spawnercreatureprobabilities = new PotentialCalculator();
+         Object2IntOpenHashMap<MobCategory> object2intopenhashmap = new Object2IntOpenHashMap();
+         Iterator iterator = entities.iterator();
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+                         spawnercreatureprobabilities.addCharge(entity.blockPosition(), biomesettingsmobs_b.charge());
+                     }
+ 
+-                    if (entity instanceof Mob) {
+                    if (densityCapper != null && entity instanceof Mob) { // Paper - Optional per player mob spawns
+                         densityCapper.addMob(chunk.getPos(), enumcreaturetype);
+                     }
+ 
+                     object2intopenhashmap.addTo(enumcreaturetype, 1);
+                    // Paper start - Optional per player mob spawns
+                    if (countMobs) {
+                        chunk.level.getChunkSource().chunkMap.updatePlayerMobTypeMap(entity);
+                    }
+                    // Paper end - Optional per player mob spawns
+                 });
+             }
+         }
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+                 continue;
+             }
+ 
+-            if ((flag || !enumcreaturetype.isFriendly()) && (flag1 || enumcreaturetype.isFriendly()) && (flag2 || !enumcreaturetype.isPersistent()) && spawnercreature_d.canSpawnForCategoryGlobal(enumcreaturetype, limit)) {
+            if ((flag || !enumcreaturetype.isFriendly()) && (flag1 || enumcreaturetype.isFriendly()) && (flag2 || !enumcreaturetype.isPersistent()) && (worldserver.paperConfig().entities.spawning.perPlayerMobSpawns || spawnercreature_d.canSpawnForCategoryGlobal(enumcreaturetype, limit))) { // Paper - Optional per player mob spawns; remove global check, check later during the local one
+                 // CraftBukkit end
+                 list.add(enumcreaturetype);
+             }
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+         while (iterator.hasNext()) {
+             MobCategory enumcreaturetype = (MobCategory) iterator.next();
+ 
+-            if (info.canSpawnForCategoryLocal(enumcreaturetype, chunk.getPos())) {
+            // Paper start - Optional per player mob spawns
+            final boolean canSpawn;
+            int maxSpawns = Integer.MAX_VALUE;
+            if (world.paperConfig().entities.spawning.perPlayerMobSpawns) {
+                // Copied from getFilteredSpawningCategories
+                int limit = enumcreaturetype.getMaxInstancesPerChunk();
+                SpawnCategory spawnCategory = CraftSpawnCategory.toBukkit(enumcreaturetype);
+                if (CraftSpawnCategory.isValidForLimits(spawnCategory)) {
+                    limit = world.getWorld().getSpawnLimit(spawnCategory);
+                }
+
+                // Apply per-player limit
+                int minDiff = Integer.MAX_VALUE;
+                final ca.spottedleaf.moonrise.common.list.ReferenceList<net.minecraft.server.level.ServerPlayer> inRange =
+                    world.moonrise$getNearbyPlayers().getPlayers(chunk.getPos(), ca.spottedleaf.moonrise.common.misc.NearbyPlayers.NearbyMapType.TICK_VIEW_DISTANCE);
+                if (inRange != null) {
+                    final net.minecraft.server.level.ServerPlayer[] backingSet = inRange.getRawDataUnchecked();
+                    for (int k = 0, len = inRange.size(); k < len; k++) {
+                        minDiff = Math.min(limit - world.getChunkSource().chunkMap.getMobCountNear(backingSet[k], enumcreaturetype), minDiff);
+                    }
+                }
+
+                maxSpawns = (minDiff == Integer.MAX_VALUE) ? 0 : minDiff;
+                canSpawn = maxSpawns > 0;
+            } else {
+                canSpawn = info.canSpawnForCategoryLocal(enumcreaturetype, chunk.getPos());
+            }
+            if (canSpawn) {
+                // Paper end - Optional per player mob spawns
+                 Objects.requireNonNull(info);
+                 NaturalSpawner.SpawnPredicate spawnercreature_c = info::canSpawn;
+ 
+                 Objects.requireNonNull(info);
+-                NaturalSpawner.spawnCategoryForChunk(enumcreaturetype, world, chunk, spawnercreature_c, info::afterSpawn);
+                // Paper start - Optional per player mob spawns
+                NaturalSpawner.spawnCategoryForChunk(enumcreaturetype, world, chunk, spawnercreature_c, info::afterSpawn,
+                    maxSpawns, world.paperConfig().entities.spawning.perPlayerMobSpawns ? world.getChunkSource().chunkMap::updatePlayerMobTypeMap : null);
+                // Paper end - Optional per player mob spawns
+             }
+         }
+ 
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+     // Paper end - Add mobcaps commands
+ 
+     public static void spawnCategoryForChunk(MobCategory group, ServerLevel world, LevelChunk chunk, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner) {
+        // Paper start - Optional per player mob spawns
+        spawnCategoryForChunk(group, world, chunk, checker, runner, Integer.MAX_VALUE, null);
+    }
+    public static void spawnCategoryForChunk(MobCategory group, ServerLevel world, LevelChunk chunk, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner, int maxSpawns, Consumer<Entity> trackEntity) {
+        // Paper end - Optional per player mob spawns
+         BlockPos blockposition = NaturalSpawner.getRandomPosWithin(world, chunk);
+ 
+         if (blockposition.getY() >= world.getMinY() + 1) {
+-            NaturalSpawner.spawnCategoryForPosition(group, world, chunk, blockposition, checker, runner);
+            NaturalSpawner.spawnCategoryForPosition(group, world, chunk, blockposition, checker, runner, maxSpawns, trackEntity); // Paper - Optional per player mob spawns
+         }
+     }
+ 
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+         });
+     }
+ 
+    // Paper start - Optional per player mob spawns
+     public static void spawnCategoryForPosition(MobCategory group, ServerLevel world, ChunkAccess chunk, BlockPos pos, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner) {
+        spawnCategoryForPosition(group, world,chunk, pos, checker, runner, Integer.MAX_VALUE, null);
+    }
+    public static void spawnCategoryForPosition(MobCategory group, ServerLevel world, ChunkAccess chunk, BlockPos pos, NaturalSpawner.SpawnPredicate checker, NaturalSpawner.AfterSpawnCallback runner, int maxSpawns, Consumer<Entity> trackEntity) {
+    // Paper end - Optional per player mob spawns
+         StructureManager structuremanager = world.structureManager();
+         ChunkGenerator chunkgenerator = world.getChunkSource().getGenerator();
+         int i = pos.getY();
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+                                                 ++j;
+                                                 ++k1;
+                                                 runner.run(entityinsentient, chunk);
+                                                // Paper start - Optional per player mob spawns
+                                                if (trackEntity != null) {
+                                                    trackEntity.accept(entityinsentient);
+                                                }
+                                                // Paper end - Optional per player mob spawns
+                                             }
+                                             // CraftBukkit end
+-                                            if (j >= entityinsentient.getMaxSpawnClusterSize()) {
+                                            if (j >= entityinsentient.getMaxSpawnClusterSize() || j >= maxSpawns) { // Paper - Optional per player mob spawns
+                                                 return;
+                                             }
+ 
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+             MobCategory enumcreaturetype = entitytypes.getCategory();
+ 
+             this.mobCategoryCounts.addTo(enumcreaturetype, 1);
+-            this.localMobCapCalculator.addMob(new ChunkPos(blockposition), enumcreaturetype);
+            if (this.localMobCapCalculator != null) this.localMobCapCalculator.addMob(new ChunkPos(blockposition), enumcreaturetype); // Paper - Optional per player mob spawns
+         }
+ 
+         public int getSpawnableChunkCount() {
--- a/feature-patches/1072-Improve-cancelling-PreCreatureSpawnEvent-with-per-pl.patch
+++ b/feature-patches/1072-Improve-cancelling-PreCreatureSpawnEvent-with-per-pl.patch
@ -0,0 +1,89 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: kickash32 <kickash32@gmail.com>
+Date: Mon, 5 Apr 2021 01:42:35 -0400
+Subject: [PATCH] Improve cancelling PreCreatureSpawnEvent with per player mob
+ spawns
+
+
+diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
+@@ -0,0 +0,0 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
+             ++(backingSet[i].mobCounts[index]);
+         }
+     }
+    // Paper start - per player mob count backoff
+    public void updateFailurePlayerMobTypeMap(int chunkX, int chunkZ, net.minecraft.world.entity.MobCategory mobCategory) {
+        if (!this.level.paperConfig().entities.spawning.perPlayerMobSpawns) {
+            return;
+        }
+        int idx = mobCategory.ordinal();
+        final ca.spottedleaf.moonrise.common.list.ReferenceList<ServerPlayer> inRange =
+            this.level.moonrise$getNearbyPlayers().getPlayersByChunk(chunkX, chunkZ, ca.spottedleaf.moonrise.common.misc.NearbyPlayers.NearbyMapType.TICK_VIEW_DISTANCE);
+        if (inRange == null) {
+            return;
+        }
+        final ServerPlayer[] backingSet = inRange.getRawDataUnchecked();
+        for (int i = 0, len = inRange.size(); i < len; i++) {
+            ++(backingSet[i].mobBackoffCounts[idx]);
+        }
+    }
+    // Paper end - per player mob count backoff
+     public int getMobCountNear(final ServerPlayer player, final net.minecraft.world.entity.MobCategory mobCategory) {
+-        return player.mobCounts[mobCategory.ordinal()];
+        return player.mobCounts[mobCategory.ordinal()] + player.mobBackoffCounts[mobCategory.ordinal()]; // Paper - per player mob count backoff
+         // Paper end - Optional per player mob spawns
+     }
+     // Paper end
+diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+@@ -0,0 +0,0 @@ public class ServerChunkCache extends ChunkSource implements ca.spottedleaf.moon
+         if ((this.spawnFriendlies || this.spawnEnemies) && this.level.paperConfig().entities.spawning.perPlayerMobSpawns) { // don't count mobs when animals and monsters are disabled
+             // re-set mob counts
+             for (ServerPlayer player : this.level.players) {
+-                Arrays.fill(player.mobCounts, 0);
+                // Paper start - per player mob spawning backoff
+                for (int ii = 0; ii < ServerPlayer.MOBCATEGORY_TOTAL_ENUMS; ii++) {
+                    player.mobCounts[ii] = 0;
+
+                    int newBackoff = player.mobBackoffCounts[ii] - 1; // TODO make configurable bleed // TODO use nonlinear algorithm?
+                    if (newBackoff < 0) {
+                        newBackoff = 0;
+                    }
+                    player.mobBackoffCounts[ii] = newBackoff;
+                }
+                // Paper end - per player mob spawning backoff
+             }
+             spawnercreature_d = NaturalSpawner.createState(naturalSpawnChunkCount, this.level.getAllEntities(), this::getFullChunk, null, true);
+         } else {
+diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
+@@ -0,0 +0,0 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player imple
+     public static final int MOBCATEGORY_TOTAL_ENUMS = net.minecraft.world.entity.MobCategory.values().length;
+     public final int[] mobCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper
+     // Paper end - Optional per player mob spawns
+    public final int[] mobBackoffCounts = new int[MOBCATEGORY_TOTAL_ENUMS]; // Paper - per player mob count backoff
+ 
+     // CraftBukkit start
+     public CraftPlayer.TransferCookieConnection transferCookieConnection;
+diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+@@ -0,0 +0,0 @@ public final class NaturalSpawner {
+ 
+                                     // Paper start - PreCreatureSpawnEvent
+                                     PreSpawnStatus doSpawning = isValidSpawnPostitionForType(world, group, structuremanager, chunkgenerator, biomesettingsmobs_c, blockposition_mutableblockposition, d2);
+                                    // Paper start - per player mob count backoff
+                                    if (doSpawning == PreSpawnStatus.ABORT || doSpawning == PreSpawnStatus.CANCELLED) {
+                                        world.getChunkSource().chunkMap.updateFailurePlayerMobTypeMap(blockposition_mutableblockposition.getX() >> 4, blockposition_mutableblockposition.getZ() >> 4, group);
+                                    }
+                                    // Paper end - per player mob count backoff
+                                     if (doSpawning == PreSpawnStatus.ABORT) {
+                                         return;
+                                     }
--- a/feature-patches/1073-Eigencraft-redstone-implementation.patch
+++ b/feature-patches/1073-Eigencraft-redstone-implementation.patch
--- a/feature-patches/1074-Add-Alternate-Current-redstone-implementation.patch
+++ b/feature-patches/1074-Add-Alternate-Current-redstone-implementation.patch
--- a/feature-patches/1075-Improve-exact-choice-recipe-ingredients.patch
+++ b/feature-patches/1075-Improve-exact-choice-recipe-ingredients.patch
@ -0,0 +1,453 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Jake Potrebic <jake.m.potrebic@gmail.com>
+Date: Sun, 25 Jun 2023 23:10:14 -0700
+Subject: [PATCH] Improve exact choice recipe ingredients
+
+Fixes exact choices not working with recipe book clicks
+and shapeless recipes.
+
+== AT ==
+public net.minecraft.world.item.ItemStackLinkedSet TYPE_AND_TAG
+
+diff --git a/src/main/java/io/papermc/paper/inventory/recipe/ItemOrExact.java b/src/main/java/io/papermc/paper/inventory/recipe/ItemOrExact.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/inventory/recipe/ItemOrExact.java
+@@ -0,0 +0,0 @@
+package io.papermc.paper.inventory.recipe;
+
+import net.minecraft.core.Holder;
+import net.minecraft.world.item.ItemStack;
+
+public sealed interface ItemOrExact permits ItemOrExact.Item, ItemOrExact.Exact {
+
+    int getMaxStackSize();
+
+    boolean matches(ItemStack stack);
+
+    record Item(Holder<net.minecraft.world.item.Item> item) implements ItemOrExact {
+
+        public Item(final ItemStack stack) {
+            this(stack.getItemHolder());
+        }
+
+        @Override
+        public int getMaxStackSize() {
+            return this.item.value().getDefaultMaxStackSize();
+        }
+
+        @Override
+        public boolean matches(final ItemStack stack) {
+            return stack.is(this.item);
+        }
+
+        @Override
+        public boolean equals(final Object obj) {
+            if (!(obj instanceof final Item otherItem)) return false;
+            return this.item.equals(otherItem.item());
+        }
+
+        @Override
+        public int hashCode() {
+            return this.item.hashCode();
+        }
+    }
+
+    record Exact(ItemStack stack) implements ItemOrExact {
+
+        @Override
+        public int getMaxStackSize() {
+            return this.stack.getMaxStackSize();
+        }
+
+        @Override
+        public boolean matches(final ItemStack stack) {
+            return ItemStack.isSameItemSameComponents(this.stack, stack);
+        }
+
+        @Override
+        public boolean equals(final Object obj) {
+            if (!(obj instanceof final Exact otherExact)) return false;
+            return ItemStack.isSameItemSameComponents(this.stack, otherExact.stack);
+        }
+
+        @Override
+        public int hashCode() {
+            return ItemStack.hashItemAndComponents(this.stack);
+        }
+    }
+}
+diff --git a/src/main/java/io/papermc/paper/inventory/recipe/StackedContentsExtrasMap.java b/src/main/java/io/papermc/paper/inventory/recipe/StackedContentsExtrasMap.java
+new file mode 100644
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
+--- /dev/null
+++ b/src/main/java/io/papermc/paper/inventory/recipe/StackedContentsExtrasMap.java
+@@ -0,0 +0,0 @@
+package io.papermc.paper.inventory.recipe;
+
+import it.unimi.dsi.fastutil.objects.Object2IntMap;
+import it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap;
+import it.unimi.dsi.fastutil.objects.ObjectOpenCustomHashSet;
+import it.unimi.dsi.fastutil.objects.ObjectSet;
+import net.minecraft.world.entity.player.StackedContents;
+import net.minecraft.world.item.ItemStack;
+import net.minecraft.world.item.ItemStackLinkedSet;
+import net.minecraft.world.item.crafting.CraftingInput;
+import net.minecraft.world.item.crafting.Ingredient;
+import net.minecraft.world.item.crafting.Recipe;
+
+public final class StackedContentsExtrasMap {
+
+    private final StackedContents<ItemOrExact> contents;
+    public Object2IntMap<ItemOrExact.Item> regularRemoved = new Object2IntOpenHashMap<>(); // needed for re-using the regular contents (for ShapelessRecipe)
+    public final ObjectSet<ItemStack> exactIngredients = new ObjectOpenCustomHashSet<>(ItemStackLinkedSet.TYPE_AND_TAG);
+
+    public StackedContentsExtrasMap(final StackedContents<ItemOrExact> contents) {
+        this.contents = contents;
+    }
+
+    public void initialize(final Recipe<?> recipe) {
+        this.exactIngredients.clear();
+        for (final Ingredient ingredient : recipe.placementInfo().ingredients()) {
+            if (ingredient.isExact()) {
+                this.exactIngredients.addAll(ingredient.itemStacks());
+            }
+        }
+    }
+
+    public void accountInput(final CraftingInput input) {
+        // similar logic to the CraftingInput constructor
+        for (final ItemStack item : input.items()) {
+            if (!item.isEmpty()) {
+                if (this.accountStack(item, 1)) {
+                    // if stack was accounted for as an exact ingredient, don't include it in the regular contents
+                    final ItemOrExact.Item asItem = new ItemOrExact.Item(item);
+                    if (this.contents.amounts.containsKey(asItem)) {
+                        final int amount = this.contents.amounts.removeInt(asItem);
+                        this.regularRemoved.put(asItem, amount);
+                    }
+                }
+            }
+        }
+    }
+
+    public void resetExtras() {
+        // clear previous extra ids
+        for (final ItemStack extra : this.exactIngredients) {
+            this.contents.amounts.removeInt(new ItemOrExact.Exact(extra));
+        }
+        for (final Object2IntMap.Entry<ItemOrExact.Item> entry : this.regularRemoved.object2IntEntrySet()) {
+            this.contents.amounts.addTo(entry.getKey(), entry.getIntValue());
+        }
+        this.exactIngredients.clear();
+        this.regularRemoved.clear();
+    }
+
+    public boolean accountStack(final ItemStack stack, final int count) {
+        if (this.exactIngredients.contains(stack)) {
+            this.contents.account(new ItemOrExact.Exact(stack), count);
+            return true;
+        }
+        return false;
+    }
+}
+diff --git a/src/main/java/net/minecraft/recipebook/ServerPlaceRecipe.java b/src/main/java/net/minecraft/recipebook/ServerPlaceRecipe.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/recipebook/ServerPlaceRecipe.java
+++ b/src/main/java/net/minecraft/recipebook/ServerPlaceRecipe.java
+@@ -0,0 +0,0 @@ public class ServerPlaceRecipe<R extends Recipe<?>> {
+             return RecipeBookMenu.PostPlaceAction.NOTHING;
+         } else {
+             StackedItemContents stackedItemContents = new StackedItemContents();
+            stackedItemContents.initializeExtras(recipe.value(), null); // Paper - Improve exact choice recipe ingredients
+             inventory.fillStackedContents(stackedItemContents);
+             handler.fillCraftSlotsStackedContents(stackedItemContents);
+             return serverPlaceRecipe.tryPlaceRecipe(recipe, stackedItemContents);
+@@ -0,0 +0,0 @@ public class ServerPlaceRecipe<R extends Recipe<?>> {
+         }
+ 
+         int j = this.calculateAmountToCraft(i, bl);
+-        List<Holder<Item>> list = new ArrayList<>();
+        List<io.papermc.paper.inventory.recipe.ItemOrExact> list = new ArrayList<>(); // Paper - Improve exact choice recipe ingredients
+         if (finder.canCraft(recipe.value(), j, list::add)) {
+             int k = clampToMaxStackSize(j, list);
+             if (k != j) {
+@@ -0,0 +0,0 @@ public class ServerPlaceRecipe<R extends Recipe<?>> {
+                 this.gridWidth, this.gridHeight, recipe.value(), recipe.value().placementInfo().slotsToIngredientIndex(), (slotx, index, x, y) -> {
+                     if (slotx != -1) {
+                         Slot slot2 = this.inputGridSlots.get(index);
+-                        Holder<Item> holder = list.get(slotx);
+                        io.papermc.paper.inventory.recipe.ItemOrExact holder = list.get(slotx); // Paper - Improve exact choice recipe ingredients
+                         int jx = k;
+ 
+                         while (jx > 0) {
+@@ -0,0 +0,0 @@ public class ServerPlaceRecipe<R extends Recipe<?>> {
+         }
+     }
+ 
+-    private static int clampToMaxStackSize(int count, List<Holder<Item>> entries) {
+-        for (Holder<Item> holder : entries) {
+-            count = Math.min(count, holder.value().getDefaultMaxStackSize());
+    // Paper start - Improve exact choice recipe ingredients
+    private static int clampToMaxStackSize(int count, List<io.papermc.paper.inventory.recipe.ItemOrExact> entries) {
+        for (io.papermc.paper.inventory.recipe.ItemOrExact holder : entries) {
+            count = Math.min(count, holder.getMaxStackSize());
+            // Paper end - Improve exact choice recipe ingredients
+         }
+ 
+         return count;
+@@ -0,0 +0,0 @@ public class ServerPlaceRecipe<R extends Recipe<?>> {
+         }
+     }
+ 
+-    private int moveItemToGrid(Slot slot, Holder<Item> item, int count) {
+    private int moveItemToGrid(Slot slot, io.papermc.paper.inventory.recipe.ItemOrExact item, int count) { // Paper - Improve exact choice recipe ingredients
+         ItemStack itemStack = slot.getItem();
+         int i = this.inventory.findSlotMatchingCraftingIngredient(item, itemStack);
+         if (i == -1) {
+diff --git a/src/main/java/net/minecraft/world/entity/player/Inventory.java b/src/main/java/net/minecraft/world/entity/player/Inventory.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/player/Inventory.java
+++ b/src/main/java/net/minecraft/world/entity/player/Inventory.java
+@@ -0,0 +0,0 @@ public class Inventory implements Container, Nameable {
+         return !stack.isDamaged() && !stack.isEnchanted() && !stack.has(DataComponents.CUSTOM_NAME);
+     }
+ 
+-    public int findSlotMatchingCraftingIngredient(Holder<Item> item, ItemStack stack) {
+    public int findSlotMatchingCraftingIngredient(io.papermc.paper.inventory.recipe.ItemOrExact item, ItemStack stack) { // Paper - Improve exact choice recipe ingredients
+         for (int i = 0; i < this.items.size(); ++i) {
+             ItemStack itemstack1 = (ItemStack) this.items.get(i);
+ 
+-            if (!itemstack1.isEmpty() && itemstack1.is(item) && Inventory.isUsableForCrafting(itemstack1) && (stack.isEmpty() || ItemStack.isSameItemSameComponents(stack, itemstack1))) {
+            if (!itemstack1.isEmpty() && item.matches(itemstack1) && (!(item instanceof io.papermc.paper.inventory.recipe.ItemOrExact.Item) || Inventory.isUsableForCrafting(itemstack1)) && (stack.isEmpty() || ItemStack.isSameItemSameComponents(stack, itemstack1))) { // Paper - Improve exact choice recipe ingredients
+                 return i;
+             }
+         }
+diff --git a/src/main/java/net/minecraft/world/entity/player/StackedContents.java b/src/main/java/net/minecraft/world/entity/player/StackedContents.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/player/StackedContents.java
+++ b/src/main/java/net/minecraft/world/entity/player/StackedContents.java
+@@ -0,0 +0,0 @@ import java.util.List;
+ import javax.annotation.Nullable;
+ 
+ public class StackedContents<T> {
+-    public final Reference2IntOpenHashMap<T> amounts = new Reference2IntOpenHashMap<>();
+    public final it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap<T> amounts = new it.unimi.dsi.fastutil.objects.Object2IntOpenHashMap<>(); // Paper - Improve exact choice recipe ingredients (don't use "reference" map)
+ 
+     boolean hasAtLeast(T input, int minimum) {
+         return this.amounts.getInt(input) >= minimum;
+@@ -0,0 +0,0 @@ public class StackedContents<T> {
+     List<T> getUniqueAvailableIngredientItems(Iterable<? extends StackedContents.IngredientInfo<T>> ingredients) {
+         List<T> list = new ArrayList<>();
+ 
+-        for (Entry<T> entry : Reference2IntMaps.fastIterable(this.amounts)) {
+        for (it.unimi.dsi.fastutil.objects.Object2IntMap.Entry<T> entry : it.unimi.dsi.fastutil.objects.Object2IntMaps.fastIterable(this.amounts)) { // Paper - Improve exact choice recipe ingredients (don't use "reference" map)
+             if (entry.getIntValue() > 0 && anyIngredientMatches(ingredients, entry.getKey())) {
+                 list.add(entry.getKey());
+             }
+@@ -0,0 +0,0 @@ public class StackedContents<T> {
+     @VisibleForTesting
+     public int getResultUpperBound(List<? extends StackedContents.IngredientInfo<T>> ingredients) {
+         int i = Integer.MAX_VALUE;
+-        ObjectIterable<Entry<T>> objectIterable = Reference2IntMaps.fastIterable(this.amounts);
+        ObjectIterable<it.unimi.dsi.fastutil.objects.Object2IntMap.Entry<T>> objectIterable = it.unimi.dsi.fastutil.objects.Object2IntMaps.fastIterable(this.amounts); // Paper - Improve exact choice recipe ingredients (don't use "reference" map)
+ 
+         label31:
+         for (StackedContents.IngredientInfo<T> ingredientInfo : ingredients) {
+             int j = 0;
+ 
+-            for (Entry<T> entry : objectIterable) {
+            for (it.unimi.dsi.fastutil.objects.Object2IntMap.Entry<T> entry : objectIterable) { // Paper - Improve exact choice recipe ingredients (don't use "reference" map)
+                 int k = entry.getIntValue();
+                 if (k > j) {
+                     if (ingredientInfo.acceptsItem(entry.getKey())) {
+diff --git a/src/main/java/net/minecraft/world/entity/player/StackedItemContents.java b/src/main/java/net/minecraft/world/entity/player/StackedItemContents.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/entity/player/StackedItemContents.java
+++ b/src/main/java/net/minecraft/world/entity/player/StackedItemContents.java
+@@ -0,0 +0,0 @@ import net.minecraft.world.item.crafting.PlacementInfo;
+ import net.minecraft.world.item.crafting.Recipe;
+ 
+ public class StackedItemContents {
+-    private final StackedContents<Holder<Item>> raw = new StackedContents<>();
+    // Paper start - Improve exact choice recipe ingredients
+    private final StackedContents<io.papermc.paper.inventory.recipe.ItemOrExact> raw = new StackedContents<>();
+    @Nullable
+    private io.papermc.paper.inventory.recipe.StackedContentsExtrasMap extrasMap = null;
+    // Paper start - Improve exact choice recipe ingredients
+ 
+     public void accountSimpleStack(ItemStack item) {
+        if (this.extrasMap != null && this.extrasMap.accountStack(item, Math.min(64, item.getCount()))) return; // Paper - Improve exact choice recipe ingredients; max of 64 due to accountStack method below
+         if (Inventory.isUsableForCrafting(item)) {
+             this.accountStack(item);
+         }
+@@ -0,0 +0,0 @@ public class StackedItemContents {
+     public void accountStack(ItemStack item, int maxCount) {
+         if (!item.isEmpty()) {
+             int i = Math.min(maxCount, item.getCount());
+-            this.raw.account(item.getItemHolder(), i);
+            if (this.extrasMap != null && !item.getComponentsPatch().isEmpty() && this.extrasMap.accountStack(item, i)) return; // Paper - Improve exact choice recipe ingredients; if an exact ingredient, don't include it
+            this.raw.account(new io.papermc.paper.inventory.recipe.ItemOrExact.Item(item.getItemHolder()), i);
+         }
+     }
+ 
+-    public boolean canCraft(Recipe<?> recipe, @Nullable StackedContents.Output<Holder<Item>> itemCallback) {
+    // Paper start - Improve exact choice recipe ingredients
+    public void initializeExtras(final Recipe<?> recipe, @Nullable final net.minecraft.world.item.crafting.CraftingInput input) {
+        if (this.extrasMap == null) {
+            this.extrasMap = new io.papermc.paper.inventory.recipe.StackedContentsExtrasMap(this.raw);
+        }
+        this.extrasMap.initialize(recipe);
+        if (input != null) this.extrasMap.accountInput(input);
+    }
+
+    public void resetExtras() {
+        if (this.extrasMap != null && !this.raw.amounts.isEmpty()) {
+            this.extrasMap.resetExtras();
+        }
+    }
+    // Paper end - Improve exact choice recipe ingredients
+
+    public boolean canCraft(Recipe<?> recipe, @Nullable StackedContents.Output<io.papermc.paper.inventory.recipe.ItemOrExact> itemCallback) { // Paper - Improve exact choice recipe ingredients
+         return this.canCraft(recipe, 1, itemCallback);
+     }
+ 
+-    public boolean canCraft(Recipe<?> recipe, int quantity, @Nullable StackedContents.Output<Holder<Item>> itemCallback) {
+    public boolean canCraft(Recipe<?> recipe, int quantity, @Nullable StackedContents.Output<io.papermc.paper.inventory.recipe.ItemOrExact> itemCallback) { // Paper - Improve exact choice recipe ingredients
+         PlacementInfo placementInfo = recipe.placementInfo();
+         return !placementInfo.isImpossibleToPlace() && this.canCraft(placementInfo.ingredients(), quantity, itemCallback);
+     }
+ 
+     public boolean canCraft(
+-        List<? extends StackedContents.IngredientInfo<Holder<Item>>> rawIngredients, @Nullable StackedContents.Output<Holder<Item>> itemCallback
+        List<? extends StackedContents.IngredientInfo<io.papermc.paper.inventory.recipe.ItemOrExact>> rawIngredients, @Nullable StackedContents.Output<io.papermc.paper.inventory.recipe.ItemOrExact> itemCallback // Paper - Improve exact choice recipe ingredients
+     ) {
+         return this.canCraft(rawIngredients, 1, itemCallback);
+     }
+ 
+     private boolean canCraft(
+-        List<? extends StackedContents.IngredientInfo<Holder<Item>>> rawIngredients, int quantity, @Nullable StackedContents.Output<Holder<Item>> itemCallback
+        List<? extends StackedContents.IngredientInfo<io.papermc.paper.inventory.recipe.ItemOrExact>> rawIngredients, int quantity, @Nullable StackedContents.Output<io.papermc.paper.inventory.recipe.ItemOrExact> itemCallback // Paper - Improve exact choice recipe ingredients
+     ) {
+         return this.raw.tryPick(rawIngredients, quantity, itemCallback);
+     }
+ 
+-    public int getBiggestCraftableStack(Recipe<?> recipe, @Nullable StackedContents.Output<Holder<Item>> itemCallback) {
+    public int getBiggestCraftableStack(Recipe<?> recipe, @Nullable StackedContents.Output<io.papermc.paper.inventory.recipe.ItemOrExact> itemCallback) { // Paper - Improve exact choice recipe ingredients
+         return this.getBiggestCraftableStack(recipe, Integer.MAX_VALUE, itemCallback);
+     }
+ 
+-    public int getBiggestCraftableStack(Recipe<?> recipe, int max, @Nullable StackedContents.Output<Holder<Item>> itemCallback) {
+    public int getBiggestCraftableStack(Recipe<?> recipe, int max, @Nullable StackedContents.Output<io.papermc.paper.inventory.recipe.ItemOrExact> itemCallback) { // Paper - Improve exact choice recipe ingredients
+         return this.raw.tryPickAll(recipe.placementInfo().ingredients(), max, itemCallback);
+     }
+ 
+diff --git a/src/main/java/net/minecraft/world/item/crafting/Ingredient.java b/src/main/java/net/minecraft/world/item/crafting/Ingredient.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/crafting/Ingredient.java
+++ b/src/main/java/net/minecraft/world/item/crafting/Ingredient.java
+@@ -0,0 +0,0 @@ import java.util.List;
+ import javax.annotation.Nullable;
+ // CraftBukkit end
+ 
+-public final class Ingredient implements StackedContents.IngredientInfo<Holder<Item>>, Predicate<ItemStack> {
+public final class Ingredient implements StackedContents.IngredientInfo<io.papermc.paper.inventory.recipe.ItemOrExact>, Predicate<ItemStack> { // Paper - Improve exact choice recipe ingredients
+ 
+     public static final StreamCodec<RegistryFriendlyByteBuf, Ingredient> CONTENTS_STREAM_CODEC = ByteBufCodecs.holderSet(Registries.ITEM).map(Ingredient::new, (recipeitemstack) -> {
+         return recipeitemstack.values;
+@@ -0,0 +0,0 @@ public final class Ingredient implements StackedContents.IngredientInfo<Holder<I
+     private final HolderSet<Item> values;
+     // CraftBukkit start
+     @Nullable
+-    private List<ItemStack> itemStacks;
+    private java.util.Set<ItemStack> itemStacks; // Paper - Improve exact choice recipe ingredients
+ 
+     public boolean isExact() {
+         return this.itemStacks != null;
+     }
+ 
+-    public List<ItemStack> itemStacks() {
+    public java.util.Set<ItemStack> itemStacks() { // Paper - Improve exact choice recipe ingredients
+         return this.itemStacks;
+     }
+ 
+     public static Ingredient ofStacks(List<ItemStack> stacks) {
+         Ingredient recipe = Ingredient.of(stacks.stream().map(ItemStack::getItem));
+-        recipe.itemStacks = stacks;
+        // Paper start - Improve exact choice recipe ingredients
+        recipe.itemStacks = net.minecraft.world.item.ItemStackLinkedSet.createTypeAndComponentsSet();
+        recipe.itemStacks.addAll(stacks);
+        recipe.itemStacks = java.util.Collections.unmodifiableSet(recipe.itemStacks);
+        // Paper end - Improve exact choice recipe ingredients
+         return recipe;
+     }
+     // CraftBukkit end
+@@ -0,0 +0,0 @@ public final class Ingredient implements StackedContents.IngredientInfo<Holder<I
+     public boolean test(ItemStack itemstack) {
+         // CraftBukkit start
+         if (this.isExact()) {
+-            for (ItemStack itemstack1 : this.itemStacks()) {
+-                if (itemstack1.getItem() == itemstack.getItem() && ItemStack.isSameItemSameComponents(itemstack, itemstack1)) {
+-                    return true;
+-                }
+-            }
+-
+-            return false;
+            return this.itemStacks.contains(itemstack); // Paper - Improve exact choice recipe ingredients (hashing FTW!)
+         }
+         // CraftBukkit end
+         return itemstack.is(this.values);
+     }
+ 
+-    public boolean acceptsItem(Holder<Item> holder) {
+-        return this.values.contains(holder);
+    // Paper start - Improve exact choice recipe ingredients
+    @Override
+    public boolean acceptsItem(final io.papermc.paper.inventory.recipe.ItemOrExact holder) {
+        return switch (holder) {
+            case io.papermc.paper.inventory.recipe.ItemOrExact.Item(final Holder<Item> item) ->
+                !this.isExact() && this.values.contains(item);
+            case io.papermc.paper.inventory.recipe.ItemOrExact.Exact(final ItemStack exact) ->
+                this.isExact() && this.itemStacks.contains(exact);
+        };
+        // Paper end - Improve exact choice recipe ingredients
+     }
+ 
+     public boolean equals(Object object) {
+@@ -0,0 +0,0 @@ public final class Ingredient implements StackedContents.IngredientInfo<Holder<I
+     }
+ 
+     public SlotDisplay display() {
+        // Paper start - show exact ingredients in recipe book
+        if (this.isExact()) {
+            return new SlotDisplay.Composite(this.itemStacks().stream().<SlotDisplay>map(SlotDisplay.ItemStackSlotDisplay::new).toList());
+        }
+        // Paper end - show exact ingredients in recipe book
+         return (SlotDisplay) this.values.unwrap().map(SlotDisplay.TagSlotDisplay::new, (list) -> {
+             return new SlotDisplay.Composite(list.stream().map(Ingredient::displayForSingleItem).toList());
+         });
+diff --git a/src/main/java/net/minecraft/world/item/crafting/ShapelessRecipe.java b/src/main/java/net/minecraft/world/item/crafting/ShapelessRecipe.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/net/minecraft/world/item/crafting/ShapelessRecipe.java
+++ b/src/main/java/net/minecraft/world/item/crafting/ShapelessRecipe.java
+@@ -0,0 +0,0 @@ public class ShapelessRecipe implements CraftingRecipe {
+     }
+ 
+     public boolean matches(CraftingInput input, Level world) {
+-        return input.ingredientCount() != this.ingredients.size() ? false : (input.size() == 1 && this.ingredients.size() == 1 ? ((Ingredient) this.ingredients.getFirst()).test(input.getItem(0)) : input.stackedContents().canCraft((Recipe) this, (StackedContents.Output) null));
+        // Paper start - Improve exact choice recipe ingredients & unwrap ternary
+        if (input.ingredientCount() != this.ingredients.size()) {
+            return false;
+        }
+        if (input.size() == 1 && this.ingredients.size() == 1) {
+            return this.ingredients.getFirst().test(input.getItem(0));
+        }
+        input.stackedContents().initializeExtras(this, input);
+        boolean canCraft = input.stackedContents().canCraft(this, null);
+        input.stackedContents().resetExtras();
+        return canCraft;
+        // Paper end - Improve exact choice recipe ingredients & unwrap ternary
+     }
+ 
+     public ItemStack assemble(CraftingInput input, HolderLookup.Provider registries) {
--- a/feature-patches/1076-Implement-chunk-view-API.patch
+++ b/feature-patches/1076-Implement-chunk-view-API.patch
@ -0,0 +1,51 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Flo0 <flo.roma@web.de>
+Date: Thu, 5 Dec 2024 12:15:07 +0100
+Subject: [PATCH] Implement chunk view API
+
+
+diff --git a/src/main/java/io/papermc/paper/FeatureHooks.java b/src/main/java/io/papermc/paper/FeatureHooks.java
+index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
+--- a/src/main/java/io/papermc/paper/FeatureHooks.java
+++ b/src/main/java/io/papermc/paper/FeatureHooks.java
+@@ -0,0 +0,0 @@ package io.papermc.paper;
+ import io.papermc.paper.command.PaperSubcommand;
+ import io.papermc.paper.command.subcommands.ChunkDebugCommand;
+ import io.papermc.paper.command.subcommands.FixLightCommand;
+import it.unimi.dsi.fastutil.longs.LongIterator;
+ import it.unimi.dsi.fastutil.longs.LongOpenHashSet;
+-import it.unimi.dsi.fastutil.longs.LongSet;
+ import it.unimi.dsi.fastutil.longs.LongSets;
+ import it.unimi.dsi.fastutil.objects.ObjectOpenHashSet;
+ import it.unimi.dsi.fastutil.objects.ObjectSet;
+@@ -0,0 +0,0 @@ public final class FeatureHooks {
+     }
+ 
+     public static Set<Long> getSentChunkKeys(final ServerPlayer player) {
+-        final LongSet keys = new LongOpenHashSet();
+-        player.getChunkTrackingView().forEach(pos -> keys.add(pos.longKey));
+-        return LongSets.unmodifiable(keys);
+        return LongSets.unmodifiable(player.moonrise$getChunkLoader().getSentChunksRaw().clone());
+     }
+ 
+     public static Set<Chunk> getSentChunks(final ServerPlayer player) {
+-        final ObjectSet<Chunk> chunks = new ObjectOpenHashSet<>();
+        final LongOpenHashSet rawChunkKeys = player.moonrise$getChunkLoader().getSentChunksRaw();
+        final ObjectSet<org.bukkit.Chunk> chunks = new ObjectOpenHashSet<>(rawChunkKeys.size());
+         final World world = player.serverLevel().getWorld();
+-        player.getChunkTrackingView().forEach(pos -> {
+-            final org.bukkit.Chunk chunk = world.getChunkAt(pos.longKey);
+-            chunks.add(chunk);
+-        });
+        final LongIterator iter = player.moonrise$getChunkLoader().getSentChunksRaw().longIterator();
+        while (iter.hasNext()) {
+            chunks.add(world.getChunkAt(iter.nextLong(), false));
+        }
+         return ObjectSets.unmodifiable(chunks);
+     }
+ 
+     public static boolean isChunkSent(final ServerPlayer player, final long chunkKey) {
+-        return player.getChunkTrackingView().contains(new ChunkPos(chunkKey));
+        return player.moonrise$getChunkLoader().getSentChunksRaw().contains(chunkKey);
+     }
+ }
--- a/gradle.properties
+++ b/gradle.properties
@ -0,0 +1,10 @@
+group=io.papermc.paper
+version=1.21.4-R0.1-SNAPSHOT
+mcVersion=1.21.4
+
+# Set to true while updating Minecraft version
+updatingMinecraft=false
+
+org.gradle.caching=true
+org.gradle.parallel=true
+org.gradle.vfs.watch=false
--- a/gradle/wrapper/gradle-wrapper.jar
+++ b/gradle/wrapper/gradle-wrapper.jar
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
--- a/252
+++ b/252
@ -0,0 +1,252 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
--- a/gradlew.bat
+++ b/gradlew.bat
@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
--- a/licenses/GPL.md
+++ b/licenses/GPL.md
@ -0,0 +1,675 @@
+### GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+### Preamble
+
+The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom
+to share and change all versions of a program--to make sure it remains
+free software for all its users. We, the Free Software Foundation, use
+the GNU General Public License for most of our software; it applies
+also to any other work released this way by its authors. You can apply
+it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you
+have certain responsibilities if you distribute copies of the
+software, or if you modify it: responsibilities to respect the freedom
+of others.
+
+For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the
+manufacturer can do so. This is fundamentally incompatible with the
+aim of protecting users' freedom to change the software. The
+systematic pattern of such abuse occurs in the area of products for
+individuals to use, which is precisely where it is most unacceptable.
+Therefore, we have designed this version of the GPL to prohibit the
+practice for those products. If such problems arise substantially in
+other domains, we stand ready to extend this provision to those
+domains in future versions of the GPL, as needed to protect the
+freedom of users.
+
+Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish
+to avoid the special danger that patents applied to a free program
+could make it effectively proprietary. To prevent this, the GPL
+assures that patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and
+modification follow.
+
+### TERMS AND CONDITIONS
+
+#### 0. Definitions.
+
+"This License" refers to version 3 of the GNU General Public License.
+
+"Copyright" also means copyright-like laws that apply to other kinds
+of works, such as semiconductor masks.
+
+"The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of
+an exact copy. The resulting work is called a "modified version" of
+the earlier work or a work "based on" the earlier work.
+
+A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user
+through a computer network, with no transfer of a copy, is not
+conveying.
+
+An interactive user interface displays "Appropriate Legal Notices" to
+the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+#### 1. Source Code.
+
+The "source code" for a work means the preferred form of the work for
+making modifications to it. "Object code" means any non-source form of
+a work.
+
+A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+The Corresponding Source need not include anything that users can
+regenerate automatically from other parts of the Corresponding Source.
+
+The Corresponding Source for a work in source code form is that same
+work.
+
+#### 2. Basic Permissions.
+
+All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+You may make, run and propagate covered works that you do not convey,
+without conditions so long as your license otherwise remains in force.
+You may convey covered works to others for the sole purpose of having
+them make modifications exclusively for you, or provide you with
+facilities for running those works, provided that you comply with the
+terms of this License in conveying all material for which you do not
+control copyright. Those thus making or running the covered works for
+you must do so exclusively on your behalf, under your direction and
+control, on terms that prohibit them from making any copies of your
+copyrighted material outside their relationship with you.
+
+Conveying under any other circumstances is permitted solely under the
+conditions stated below. Sublicensing is not allowed; section 10 makes
+it unnecessary.
+
+#### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such
+circumvention is effected by exercising rights under this License with
+respect to the covered work, and you disclaim any intention to limit
+operation or modification of the work as a means of enforcing, against
+the work's users, your or third parties' legal rights to forbid
+circumvention of technological measures.
+
+#### 4. Conveying Verbatim Copies.
+
+You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+#### 5. Conveying Modified Source Versions.
+
+You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these
+conditions:
+
+-   a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+-   b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under
+    section 7. This requirement modifies the requirement in section 4
+    to "keep intact all notices".
+-   c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy. This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged. This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+-   d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+#### 6. Conveying Non-Source Forms.
+
+You may convey a covered work in object code form under the terms of
+sections 4 and 5, provided that you also convey the machine-readable
+Corresponding Source under the terms of this License, in one of these
+ways:
+
+-   a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+-   b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the Corresponding
+    Source from a network server at no charge.
+-   c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source. This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+-   d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge. You need not require recipients to copy the
+    Corresponding Source along with the object code. If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source. Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+-   e) Convey the object code using peer-to-peer transmission,
+    provided you inform other peers where the object code and
+    Corresponding Source of the work are being offered to the general
+    public at no charge under subsection 6d.
+
+A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal,
+family, or household purposes, or (2) anything designed or sold for
+incorporation into a dwelling. In determining whether a product is a
+consumer product, doubtful cases shall be resolved in favor of
+coverage. For a particular product received by a particular user,
+"normally used" refers to a typical or common use of that class of
+product, regardless of the status of the particular user or of the way
+in which the particular user actually uses, or expects or is expected
+to use, the product. A product is a consumer product regardless of
+whether the product has substantial commercial, industrial or
+non-consumer uses, unless such uses represent the only significant
+mode of use of the product.
+
+"Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to
+install and execute modified versions of a covered work in that User
+Product from a modified version of its Corresponding Source. The
+information must suffice to ensure that the continued functioning of
+the modified object code is in no case prevented or interfered with
+solely because modification has been made.
+
+If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or
+updates for a work that has been modified or installed by the
+recipient, or for the User Product in which it has been modified or
+installed. Access to a network may be denied when the modification
+itself materially and adversely affects the operation of the network
+or violates the rules and protocols for communication across the
+network.
+
+Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+#### 7. Additional Terms.
+
+"Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders
+of that material) supplement the terms of this License with terms:
+
+-   a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+-   b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+-   c) Prohibiting misrepresentation of the origin of that material,
+    or requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+-   d) Limiting the use for publicity purposes of names of licensors
+    or authors of the material; or
+-   e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+-   f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions
+    of it) with contractual assumptions of liability to the recipient,
+    for any liability that these contractual assumptions directly
+    impose on those licensors and authors.
+
+All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions; the
+above requirements apply either way.
+
+#### 8. Termination.
+
+You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+However, if you cease all violation of this License, then your license
+from a particular copyright holder is reinstated (a) provisionally,
+unless and until the copyright holder explicitly and finally
+terminates your license, and (b) permanently, if the copyright holder
+fails to notify you of the violation by some reasonable means prior to
+60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+#### 9. Acceptance Not Required for Having Copies.
+
+You are not required to accept this License in order to receive or run
+a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+#### 10. Automatic Licensing of Downstream Recipients.
+
+Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+#### 11. Patents.
+
+A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+A contributor's "essential patent claims" are all patent claims owned
+or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+#### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+#### 13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+#### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in
+detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU General Public
+License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that numbered version or
+of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of the GNU General Public
+License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU General Public License can be used, that proxy's public
+statement of acceptance of a version permanently authorizes you to
+choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+#### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+#### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+#### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+### How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+        <program>  Copyright (C) <year>  <name of author>
+        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+The hypothetical commands \`show w' and \`show c' should show the
+appropriate parts of the General Public License. Of course, your
+program's commands might be different; for a GUI interface, you would
+use an "about box".
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
+applications with the library. If this is what you want to do, use the
+GNU Lesser General Public License instead of this License. But first,
+please read <https://www.gnu.org/licenses/why-not-lgpl.html>.
--- a/licenses/MIT.md
+++ b/licenses/MIT.md
@ -0,0 +1,23 @@
+The MIT License (MIT)
+=====================
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the “Software”), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
--- a/paper-api-generator/build.gradle.kts
+++ b/paper-api-generator/build.gradle.kts
@ -0,0 +1,37 @@
+import io.papermc.paperweight.PaperweightSourceGeneratorHelper
+import io.papermc.paperweight.extension.PaperweightSourceGeneratorExt
+import io.papermc.paperweight.util.defaultJavaLauncher
+
+plugins {
+    java
+}
+
+plugins.apply(PaperweightSourceGeneratorHelper::class)
+
+extensions.configure(PaperweightSourceGeneratorExt::class) {
+    atFile.set(projectDir.toPath().resolve("wideners.at").toFile())
+}
+
+dependencies {
+    implementation("com.squareup:javapoet:1.13.0")
+    implementation(project(":paper-api"))
+    implementation("io.github.classgraph:classgraph:4.8.47")
+    implementation("org.jetbrains:annotations:24.1.0")
+    testImplementation("org.junit.jupiter:junit-jupiter:5.10.2")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
+}
+
+tasks.register<JavaExec>("generate") {
+    dependsOn(tasks.check)
+    mainClass.set("io.papermc.generator.Main")
+    classpath(sourceSets.main.map { it.runtimeClasspath })
+    args(projectDir.toPath().resolve("generated").toString())
+    javaLauncher = javaToolchains.defaultJavaLauncher(project)
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
+
+group = "io.papermc.paper"
+version = "1.0-SNAPSHOT"
--- a/paper-api-generator/generated/com/destroystokyo/paper/entity/ai/VanillaGoal.java
+++ b/paper-api-generator/generated/com/destroystokyo/paper/entity/ai/VanillaGoal.java
@ -0,0 +1,447 @@
+package com.destroystokyo.paper.entity.ai;
+
+import com.destroystokyo.paper.entity.RangedEntity;
+import io.papermc.paper.entity.SchoolableFish;
+import io.papermc.paper.generated.GeneratedFrom;
+import org.bukkit.NamespacedKey;
+import org.bukkit.entity.AbstractHorse;
+import org.bukkit.entity.AbstractSkeleton;
+import org.bukkit.entity.AbstractVillager;
+import org.bukkit.entity.Animals;
+import org.bukkit.entity.Bee;
+import org.bukkit.entity.Blaze;
+import org.bukkit.entity.Cat;
+import org.bukkit.entity.Creature;
+import org.bukkit.entity.Creeper;
+import org.bukkit.entity.Dolphin;
+import org.bukkit.entity.Drowned;
+import org.bukkit.entity.Enderman;
+import org.bukkit.entity.Evoker;
+import org.bukkit.entity.Fish;
+import org.bukkit.entity.Fox;
+import org.bukkit.entity.Ghast;
+import org.bukkit.entity.Guardian;
+import org.bukkit.entity.Illager;
+import org.bukkit.entity.Illusioner;
+import org.bukkit.entity.IronGolem;
+import org.bukkit.entity.Llama;
+import org.bukkit.entity.Mob;
+import org.bukkit.entity.Monster;
+import org.bukkit.entity.Ocelot;
+import org.bukkit.entity.Panda;
+import org.bukkit.entity.Parrot;
+import org.bukkit.entity.Phantom;
+import org.bukkit.entity.PolarBear;
+import org.bukkit.entity.PufferFish;
+import org.bukkit.entity.Rabbit;
+import org.bukkit.entity.Raider;
+import org.bukkit.entity.Shulker;
+import org.bukkit.entity.Silverfish;
+import org.bukkit.entity.SkeletonHorse;
+import org.bukkit.entity.Slime;
+import org.bukkit.entity.Spellcaster;
+import org.bukkit.entity.Spider;
+import org.bukkit.entity.Squid;
+import org.bukkit.entity.Strider;
+import org.bukkit.entity.Tameable;
+import org.bukkit.entity.Turtle;
+import org.bukkit.entity.Vex;
+import org.bukkit.entity.Vindicator;
+import org.bukkit.entity.WanderingTrader;
+import org.bukkit.entity.Wither;
+import org.bukkit.entity.Wolf;
+import org.bukkit.entity.Zombie;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for Mob Goals.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+public interface VanillaGoal<T extends Mob> extends Goal<T> {
+    GoalKey<AbstractHorse> RANDOM_STAND = create("random_stand", AbstractHorse.class);
+
+    GoalKey<AbstractHorse> RUN_AROUND_LIKE_CRAZY = create("run_around_like_crazy", AbstractHorse.class);
+
+    GoalKey<AbstractSkeleton> ABSTRACT_SKELETON_MELEE = create("abstract_skeleton_melee", AbstractSkeleton.class);
+
+    GoalKey<AbstractVillager> LOOK_AT_TRADING_PLAYER = create("look_at_trading_player", AbstractVillager.class);
+
+    GoalKey<AbstractVillager> TRADE_WITH_PLAYER = create("trade_with_player", AbstractVillager.class);
+
+    GoalKey<Animals> BREED = create("breed", Animals.class);
+
+    GoalKey<Animals> FOLLOW_PARENT = create("follow_parent", Animals.class);
+
+    GoalKey<Bee> BEE_ATTACK = create("bee_attack", Bee.class);
+
+    GoalKey<Bee> BEE_BECOME_ANGRY = create("bee_become_angry", Bee.class);
+
+    GoalKey<Bee> BEE_ENTER_HIVE = create("bee_enter_hive", Bee.class);
+
+    GoalKey<Bee> BEE_GO_TO_HIVE = create("bee_go_to_hive", Bee.class);
+
+    GoalKey<Bee> BEE_GO_TO_KNOWN_FLOWER = create("bee_go_to_known_flower", Bee.class);
+
+    GoalKey<Bee> BEE_GROW_CROP = create("bee_grow_crop", Bee.class);
+
+    GoalKey<Bee> BEE_HURT_BY_OTHER = create("bee_hurt_by_other", Bee.class);
+
+    GoalKey<Bee> BEE_LOCATE_HIVE = create("bee_locate_hive", Bee.class);
+
+    GoalKey<Bee> BEE_POLLINATE = create("bee_pollinate", Bee.class);
+
+    GoalKey<Bee> BEE_WANDER = create("bee_wander", Bee.class);
+
+    GoalKey<Bee> VALIDATE_FLOWER = create("validate_flower", Bee.class);
+
+    GoalKey<Bee> VALIDATE_HIVE = create("validate_hive", Bee.class);
+
+    GoalKey<Blaze> BLAZE_ATTACK = create("blaze_attack", Blaze.class);
+
+    GoalKey<Cat> CAT_AVOID_ENTITY = create("cat_avoid_entity", Cat.class);
+
+    GoalKey<Cat> CAT_LIE_ON_BED = create("cat_lie_on_bed", Cat.class);
+
+    GoalKey<Cat> CAT_RELAX_ON_OWNER = create("cat_relax_on_owner", Cat.class);
+
+    GoalKey<Cat> CAT_SIT_ON_BLOCK = create("cat_sit_on_block", Cat.class);
+
+    GoalKey<Cat> CAT_TEMPT = create("cat_tempt", Cat.class);
+
+    GoalKey<Creature> AVOID_ENTITY = create("avoid_entity", Creature.class);
+
+    GoalKey<Creature> BREATH_AIR = create("breath_air", Creature.class);
+
+    GoalKey<Creature> DROWNED_GO_TO_WATER = create("drowned_go_to_water", Creature.class);
+
+    GoalKey<Creature> FLEE_SUN = create("flee_sun", Creature.class);
+
+    GoalKey<Creature> FOLLOW_BOAT = create("follow_boat", Creature.class);
+
+    GoalKey<Creature> GOLEM_RANDOM_STROLL_IN_VILLAGE = create("golem_random_stroll_in_village", Creature.class);
+
+    GoalKey<Creature> HURT_BY = create("hurt_by", Creature.class);
+
+    GoalKey<Creature> MELEE_ATTACK = create("melee_attack", Creature.class);
+
+    GoalKey<Creature> MOVE_BACK_TO_VILLAGE = create("move_back_to_village", Creature.class);
+
+    GoalKey<Creature> MOVE_THROUGH_VILLAGE = create("move_through_village", Creature.class);
+
+    GoalKey<Creature> MOVE_TOWARDS = create("move_towards", Creature.class);
+
+    GoalKey<Creature> MOVE_TOWARDS_RESTRICTION = create("move_towards_restriction", Creature.class);
+
+    GoalKey<Creature> PANIC = create("panic", Creature.class);
+
+    GoalKey<Creature> PARROT_WANDER = create("parrot_wander", Creature.class);
+
+    GoalKey<Creature> RANDOM_STROLL = create("random_stroll", Creature.class);
+
+    GoalKey<Creature> RANDOM_SWIMMING = create("random_swimming", Creature.class);
+
+    GoalKey<Creature> REMOVE_BLOCK = create("remove_block", Creature.class);
+
+    GoalKey<Creature> RESTRICT_SUN = create("restrict_sun", Creature.class);
+
+    GoalKey<Creature> STROLL_THROUGH_VILLAGE = create("stroll_through_village", Creature.class);
+
+    GoalKey<Creature> TEMPT = create("tempt", Creature.class);
+
+    GoalKey<Creature> TRY_FIND_WATER = create("try_find_water", Creature.class);
+
+    GoalKey<Creature> WATER_AVOIDING_RANDOM_FLYING = create("water_avoiding_random_flying", Creature.class);
+
+    GoalKey<Creature> WATER_AVOIDING_RANDOM_STROLL = create("water_avoiding_random_stroll", Creature.class);
+
+    GoalKey<Creeper> SWELL = create("swell", Creeper.class);
+
+    GoalKey<Dolphin> DOLPHIN_JUMP = create("dolphin_jump", Dolphin.class);
+
+    GoalKey<Dolphin> DOLPHIN_SWIM_TO_TREASURE = create("dolphin_swim_to_treasure", Dolphin.class);
+
+    GoalKey<Dolphin> DOLPHIN_SWIM_WITH_PLAYER = create("dolphin_swim_with_player", Dolphin.class);
+
+    GoalKey<Dolphin> PLAY_WITH_ITEMS = create("play_with_items", Dolphin.class);
+
+    GoalKey<Drowned> DROWNED_ATTACK = create("drowned_attack", Drowned.class);
+
+    GoalKey<Drowned> DROWNED_GO_TO_BEACH = create("drowned_go_to_beach", Drowned.class);
+
+    GoalKey<Drowned> DROWNED_SWIM_UP = create("drowned_swim_up", Drowned.class);
+
+    GoalKey<Enderman> ENDERMAN_FREEZE_WHEN_LOOKED_AT = create("enderman_freeze_when_looked_at", Enderman.class);
+
+    GoalKey<Enderman> ENDERMAN_LEAVE_BLOCK = create("enderman_leave_block", Enderman.class);
+
+    GoalKey<Enderman> ENDERMAN_LOOK_FOR_PLAYER = create("enderman_look_for_player", Enderman.class);
+
+    GoalKey<Enderman> ENDERMAN_TAKE_BLOCK = create("enderman_take_block", Enderman.class);
+
+    GoalKey<Evoker> EVOKER_ATTACK_SPELL = create("evoker_attack_spell", Evoker.class);
+
+    GoalKey<Evoker> EVOKER_CASTING_SPELL = create("evoker_casting_spell", Evoker.class);
+
+    GoalKey<Evoker> EVOKER_SUMMON_SPELL = create("evoker_summon_spell", Evoker.class);
+
+    GoalKey<Evoker> EVOKER_WOLOLO_SPELL = create("evoker_wololo_spell", Evoker.class);
+
+    GoalKey<Fish> FISH_SWIM = create("fish_swim", Fish.class);
+
+    GoalKey<Fox> DEFEND_TRUSTED = create("defend_trusted", Fox.class);
+
+    GoalKey<Fox> FACEPLANT = create("faceplant", Fox.class);
+
+    GoalKey<Fox> FOX_BREED = create("fox_breed", Fox.class);
+
+    GoalKey<Fox> FOX_EAT_BERRIES = create("fox_eat_berries", Fox.class);
+
+    GoalKey<Fox> FOX_FLOAT = create("fox_float", Fox.class);
+
+    GoalKey<Fox> FOX_FOLLOW_PARENT = create("fox_follow_parent", Fox.class);
+
+    GoalKey<Fox> FOX_LOOK_AT_PLAYER = create("fox_look_at_player", Fox.class);
+
+    GoalKey<Fox> FOX_MELEE_ATTACK = create("fox_melee_attack", Fox.class);
+
+    GoalKey<Fox> FOX_PANIC = create("fox_panic", Fox.class);
+
+    GoalKey<Fox> FOX_POUNCE = create("fox_pounce", Fox.class);
+
+    GoalKey<Fox> FOX_SEARCH_FOR_ITEMS = create("fox_search_for_items", Fox.class);
+
+    GoalKey<Fox> FOX_STROLL_THROUGH_VILLAGE = create("fox_stroll_through_village", Fox.class);
+
+    GoalKey<Fox> PERCH_AND_SEARCH = create("perch_and_search", Fox.class);
+
+    GoalKey<Fox> SEEK_SHELTER = create("seek_shelter", Fox.class);
+
+    GoalKey<Fox> SLEEP = create("sleep", Fox.class);
+
+    GoalKey<Fox> STALK_PREY = create("stalk_prey", Fox.class);
+
+    GoalKey<Ghast> GHAST_LOOK = create("ghast_look", Ghast.class);
+
+    GoalKey<Ghast> GHAST_SHOOT_FIREBALL = create("ghast_shoot_fireball", Ghast.class);
+
+    GoalKey<Ghast> RANDOM_FLOAT_AROUND = create("random_float_around", Ghast.class);
+
+    GoalKey<Guardian> GUARDIAN_ATTACK = create("guardian_attack", Guardian.class);
+
+    GoalKey<Illager> HOLD_GROUND_ATTACK = create("hold_ground_attack", Illager.class);
+
+    GoalKey<Illager> RAIDER_OPEN_DOOR = create("raider_open_door", Illager.class);
+
+    GoalKey<Illusioner> ILLUSIONER_BLINDNESS_SPELL = create("illusioner_blindness_spell", Illusioner.class);
+
+    GoalKey<Illusioner> ILLUSIONER_MIRROR_SPELL = create("illusioner_mirror_spell", Illusioner.class);
+
+    GoalKey<IronGolem> DEFEND_VILLAGE = create("defend_village", IronGolem.class);
+
+    GoalKey<IronGolem> OFFER_FLOWER = create("offer_flower", IronGolem.class);
+
+    GoalKey<Llama> LLAMA_ATTACK_WOLF = create("llama_attack_wolf", Llama.class);
+
+    GoalKey<Llama> LLAMA_FOLLOW_CARAVAN = create("llama_follow_caravan", Llama.class);
+
+    GoalKey<Llama> LLAMA_HURT_BY = create("llama_hurt_by", Llama.class);
+
+    GoalKey<Llama> TRADER_LLAMA_DEFEND_WANDERING_TRADER = create("trader_llama_defend_wandering_trader", Llama.class);
+
+    GoalKey<Mob> BREAK_DOOR = create("break_door", Mob.class);
+
+    GoalKey<Mob> CLIMB_ON_TOP_OF_POWDER_SNOW = create("climb_on_top_of_powder_snow", Mob.class);
+
+    GoalKey<Mob> EAT_BLOCK = create("eat_block", Mob.class);
+
+    GoalKey<Mob> FLOAT = create("float", Mob.class);
+
+    GoalKey<Mob> FOLLOW_MOB = create("follow_mob", Mob.class);
+
+    GoalKey<Mob> INTERACT = create("interact", Mob.class);
+
+    GoalKey<Mob> LEAP_AT = create("leap_at", Mob.class);
+
+    GoalKey<Mob> LOOK_AT_PLAYER = create("look_at_player", Mob.class);
+
+    GoalKey<Mob> NEAREST_ATTACKABLE = create("nearest_attackable", Mob.class);
+
+    GoalKey<Mob> OCELOT_ATTACK = create("ocelot_attack", Mob.class);
+
+    GoalKey<Mob> OPEN_DOOR = create("open_door", Mob.class);
+
+    GoalKey<Mob> RANDOM_LOOK_AROUND = create("random_look_around", Mob.class);
+
+    GoalKey<Mob> RESET_UNIVERSAL_ANGER = create("reset_universal_anger", Mob.class);
+
+    GoalKey<Mob> USE_ITEM = create("use_item", Mob.class);
+
+    GoalKey<Mob> VINDICATOR_BREAK_DOOR = create("vindicator_break_door", Mob.class);
+
+    GoalKey<Monster> RANGED_BOW_ATTACK = create("ranged_bow_attack", Monster.class);
+
+    GoalKey<Monster> RANGED_CROSSBOW_ATTACK = create("ranged_crossbow_attack", Monster.class);
+
+    GoalKey<Ocelot> OCELOT_AVOID_ENTITY = create("ocelot_avoid_entity", Ocelot.class);
+
+    GoalKey<Ocelot> OCELOT_TEMPT = create("ocelot_tempt", Ocelot.class);
+
+    GoalKey<Panda> PANDA_ATTACK = create("panda_attack", Panda.class);
+
+    GoalKey<Panda> PANDA_AVOID = create("panda_avoid", Panda.class);
+
+    GoalKey<Panda> PANDA_BREED = create("panda_breed", Panda.class);
+
+    GoalKey<Panda> PANDA_HURT_BY = create("panda_hurt_by", Panda.class);
+
+    GoalKey<Panda> PANDA_LIE_ON_BACK = create("panda_lie_on_back", Panda.class);
+
+    GoalKey<Panda> PANDA_LOOK_AT_PLAYER = create("panda_look_at_player", Panda.class);
+
+    GoalKey<Panda> PANDA_PANIC = create("panda_panic", Panda.class);
+
+    GoalKey<Panda> PANDA_ROLL = create("panda_roll", Panda.class);
+
+    GoalKey<Panda> PANDA_SIT = create("panda_sit", Panda.class);
+
+    GoalKey<Panda> PANDA_SNEEZE = create("panda_sneeze", Panda.class);
+
+    GoalKey<Parrot> LAND_ON_OWNERS_SHOULDER = create("land_on_owners_shoulder", Parrot.class);
+
+    GoalKey<Phantom> PHANTOM_ATTACK_PLAYER = create("phantom_attack_player", Phantom.class);
+
+    GoalKey<Phantom> PHANTOM_ATTACK_STRATEGY = create("phantom_attack_strategy", Phantom.class);
+
+    GoalKey<Phantom> PHANTOM_CIRCLE_AROUND_ANCHOR = create("phantom_circle_around_anchor", Phantom.class);
+
+    GoalKey<Phantom> PHANTOM_SWEEP_ATTACK = create("phantom_sweep_attack", Phantom.class);
+
+    GoalKey<PolarBear> POLAR_BEAR_ATTACK_PLAYERS = create("polar_bear_attack_players", PolarBear.class);
+
+    GoalKey<PolarBear> POLAR_BEAR_HURT_BY = create("polar_bear_hurt_by", PolarBear.class);
+
+    GoalKey<PolarBear> POLAR_BEAR_MELEE_ATTACK = create("polar_bear_melee_attack", PolarBear.class);
+
+    GoalKey<PufferFish> PUFFERFISH_PUFF = create("pufferfish_puff", PufferFish.class);
+
+    GoalKey<Rabbit> RABBIT_AVOID_ENTITY = create("rabbit_avoid_entity", Rabbit.class);
+
+    GoalKey<Rabbit> RABBIT_PANIC = create("rabbit_panic", Rabbit.class);
+
+    GoalKey<Rabbit> RAID_GARDEN = create("raid_garden", Rabbit.class);
+
+    GoalKey<Raider> LONG_DISTANCE_PATROL = create("long_distance_patrol", Raider.class);
+
+    GoalKey<Raider> NEAREST_ATTACKABLE_WITCH = create("nearest_attackable_witch", Raider.class);
+
+    GoalKey<Raider> NEAREST_HEALABLE_RAIDER = create("nearest_healable_raider", Raider.class);
+
+    GoalKey<Raider> OBTAIN_RAID_LEADER_BANNER = create("obtain_raid_leader_banner", Raider.class);
+
+    GoalKey<Raider> PATHFIND_TO_RAID = create("pathfind_to_raid", Raider.class);
+
+    GoalKey<Raider> RAIDER_CELEBRATION = create("raider_celebration", Raider.class);
+
+    GoalKey<Raider> RAIDER_MOVE_THROUGH_VILLAGE = create("raider_move_through_village", Raider.class);
+
+    GoalKey<RangedEntity> DROWNED_TRIDENT_ATTACK = create("drowned_trident_attack", RangedEntity.class);
+
+    GoalKey<RangedEntity> RANGED_ATTACK = create("ranged_attack", RangedEntity.class);
+
+    GoalKey<SchoolableFish> FOLLOW_FLOCK_LEADER = create("follow_flock_leader", SchoolableFish.class);
+
+    GoalKey<Shulker> SHULKER_ATTACK = create("shulker_attack", Shulker.class);
+
+    GoalKey<Shulker> SHULKER_DEFENSE_ATTACK = create("shulker_defense_attack", Shulker.class);
+
+    GoalKey<Shulker> SHULKER_NEAREST_ATTACK = create("shulker_nearest_attack", Shulker.class);
+
+    GoalKey<Shulker> SHULKER_PEEK = create("shulker_peek", Shulker.class);
+
+    GoalKey<Silverfish> SILVERFISH_MERGE_WITH_STONE = create("silverfish_merge_with_stone", Silverfish.class);
+
+    GoalKey<Silverfish> SILVERFISH_WAKE_UP_FRIENDS = create("silverfish_wake_up_friends", Silverfish.class);
+
+    GoalKey<SkeletonHorse> SKELETON_TRAP = create("skeleton_trap", SkeletonHorse.class);
+
+    GoalKey<Slime> SLIME_ATTACK = create("slime_attack", Slime.class);
+
+    GoalKey<Slime> SLIME_FLOAT = create("slime_float", Slime.class);
+
+    GoalKey<Slime> SLIME_KEEP_ON_JUMPING = create("slime_keep_on_jumping", Slime.class);
+
+    GoalKey<Slime> SLIME_RANDOM_DIRECTION = create("slime_random_direction", Slime.class);
+
+    GoalKey<Spellcaster> SPELLCASTER_CASTING_SPELL = create("spellcaster_casting_spell", Spellcaster.class);
+
+    GoalKey<Spider> SPIDER = create("spider", Spider.class);
+
+    GoalKey<Spider> SPIDER_ATTACK = create("spider_attack", Spider.class);
+
+    GoalKey<Squid> SQUID_FLEE = create("squid_flee", Squid.class);
+
+    GoalKey<Squid> SQUID_RANDOM_MOVEMENT = create("squid_random_movement", Squid.class);
+
+    GoalKey<Strider> STRIDER_GO_TO_LAVA = create("strider_go_to_lava", Strider.class);
+
+    GoalKey<Tameable> FOLLOW_OWNER = create("follow_owner", Tameable.class);
+
+    GoalKey<Tameable> NON_TAME_RANDOM = create("non_tame_random", Tameable.class);
+
+    GoalKey<Tameable> OWNER_HURT = create("owner_hurt", Tameable.class);
+
+    GoalKey<Tameable> OWNER_HURT_BY = create("owner_hurt_by", Tameable.class);
+
+    GoalKey<Tameable> SIT_WHEN_ORDERED_TO = create("sit_when_ordered_to", Tameable.class);
+
+    GoalKey<Tameable> TAMABLE_ANIMAL_PANIC = create("tamable_animal_panic", Tameable.class);
+
+    GoalKey<Turtle> TURTLE_BREED = create("turtle_breed", Turtle.class);
+
+    GoalKey<Turtle> TURTLE_GO_HOME = create("turtle_go_home", Turtle.class);
+
+    GoalKey<Turtle> TURTLE_GO_TO_WATER = create("turtle_go_to_water", Turtle.class);
+
+    GoalKey<Turtle> TURTLE_LAY_EGG = create("turtle_lay_egg", Turtle.class);
+
+    GoalKey<Turtle> TURTLE_PANIC = create("turtle_panic", Turtle.class);
+
+    GoalKey<Turtle> TURTLE_RANDOM_STROLL = create("turtle_random_stroll", Turtle.class);
+
+    GoalKey<Turtle> TURTLE_TRAVEL = create("turtle_travel", Turtle.class);
+
+    GoalKey<Vex> VEX_CHARGE_ATTACK = create("vex_charge_attack", Vex.class);
+
+    GoalKey<Vex> VEX_COPY_OWNER = create("vex_copy_owner", Vex.class);
+
+    GoalKey<Vex> VEX_RANDOM_MOVE = create("vex_random_move", Vex.class);
+
+    GoalKey<Vindicator> VINDICATOR_JOHNNY_ATTACK = create("vindicator_johnny_attack", Vindicator.class);
+
+    GoalKey<WanderingTrader> WANDER_TO_POSITION = create("wander_to_position", WanderingTrader.class);
+
+    GoalKey<Wither> WITHER_DO_NOTHING = create("wither_do_nothing", Wither.class);
+
+    GoalKey<Wolf> BEG = create("beg", Wolf.class);
+
+    GoalKey<Wolf> WOLF_AVOID_ENTITY = create("wolf_avoid_entity", Wolf.class);
+
+    GoalKey<Zombie> ZOMBIE_ATTACK = create("zombie_attack", Zombie.class);
+
+    GoalKey<Zombie> ZOMBIE_ATTACK_TURTLE_EGG = create("zombie_attack_turtle_egg", Zombie.class);
+
+    private static <T extends Mob> GoalKey<T> create(final String key, final Class<T> type) {
+        return GoalKey.of(type, NamespacedKey.minecraft(key));
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/AttributeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/AttributeKeys.java
@ -0,0 +1,260 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.attribute.Attribute;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#ATTRIBUTE}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class AttributeKeys {
+    /**
+     * {@code minecraft:armor}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> ARMOR = create(key("armor"));
+
+    /**
+     * {@code minecraft:armor_toughness}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> ARMOR_TOUGHNESS = create(key("armor_toughness"));
+
+    /**
+     * {@code minecraft:attack_damage}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> ATTACK_DAMAGE = create(key("attack_damage"));
+
+    /**
+     * {@code minecraft:attack_knockback}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> ATTACK_KNOCKBACK = create(key("attack_knockback"));
+
+    /**
+     * {@code minecraft:attack_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> ATTACK_SPEED = create(key("attack_speed"));
+
+    /**
+     * {@code minecraft:block_break_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> BLOCK_BREAK_SPEED = create(key("block_break_speed"));
+
+    /**
+     * {@code minecraft:block_interaction_range}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> BLOCK_INTERACTION_RANGE = create(key("block_interaction_range"));
+
+    /**
+     * {@code minecraft:burning_time}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> BURNING_TIME = create(key("burning_time"));
+
+    /**
+     * {@code minecraft:entity_interaction_range}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> ENTITY_INTERACTION_RANGE = create(key("entity_interaction_range"));
+
+    /**
+     * {@code minecraft:explosion_knockback_resistance}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> EXPLOSION_KNOCKBACK_RESISTANCE = create(key("explosion_knockback_resistance"));
+
+    /**
+     * {@code minecraft:fall_damage_multiplier}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> FALL_DAMAGE_MULTIPLIER = create(key("fall_damage_multiplier"));
+
+    /**
+     * {@code minecraft:flying_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> FLYING_SPEED = create(key("flying_speed"));
+
+    /**
+     * {@code minecraft:follow_range}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> FOLLOW_RANGE = create(key("follow_range"));
+
+    /**
+     * {@code minecraft:gravity}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> GRAVITY = create(key("gravity"));
+
+    /**
+     * {@code minecraft:jump_strength}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> JUMP_STRENGTH = create(key("jump_strength"));
+
+    /**
+     * {@code minecraft:knockback_resistance}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> KNOCKBACK_RESISTANCE = create(key("knockback_resistance"));
+
+    /**
+     * {@code minecraft:luck}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> LUCK = create(key("luck"));
+
+    /**
+     * {@code minecraft:max_absorption}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> MAX_ABSORPTION = create(key("max_absorption"));
+
+    /**
+     * {@code minecraft:max_health}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> MAX_HEALTH = create(key("max_health"));
+
+    /**
+     * {@code minecraft:mining_efficiency}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> MINING_EFFICIENCY = create(key("mining_efficiency"));
+
+    /**
+     * {@code minecraft:movement_efficiency}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> MOVEMENT_EFFICIENCY = create(key("movement_efficiency"));
+
+    /**
+     * {@code minecraft:movement_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> MOVEMENT_SPEED = create(key("movement_speed"));
+
+    /**
+     * {@code minecraft:oxygen_bonus}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> OXYGEN_BONUS = create(key("oxygen_bonus"));
+
+    /**
+     * {@code minecraft:safe_fall_distance}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> SAFE_FALL_DISTANCE = create(key("safe_fall_distance"));
+
+    /**
+     * {@code minecraft:scale}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> SCALE = create(key("scale"));
+
+    /**
+     * {@code minecraft:sneaking_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> SNEAKING_SPEED = create(key("sneaking_speed"));
+
+    /**
+     * {@code minecraft:spawn_reinforcements}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> SPAWN_REINFORCEMENTS = create(key("spawn_reinforcements"));
+
+    /**
+     * {@code minecraft:step_height}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> STEP_HEIGHT = create(key("step_height"));
+
+    /**
+     * {@code minecraft:submerged_mining_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> SUBMERGED_MINING_SPEED = create(key("submerged_mining_speed"));
+
+    /**
+     * {@code minecraft:sweeping_damage_ratio}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> SWEEPING_DAMAGE_RATIO = create(key("sweeping_damage_ratio"));
+
+    /**
+     * {@code minecraft:tempt_range}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> TEMPT_RANGE = create(key("tempt_range"));
+
+    /**
+     * {@code minecraft:water_movement_efficiency}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Attribute> WATER_MOVEMENT_EFFICIENCY = create(key("water_movement_efficiency"));
+
+    private AttributeKeys() {
+    }
+
+    private static TypedKey<Attribute> create(final Key key) {
+        return TypedKey.create(RegistryKey.ATTRIBUTE, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/BannerPatternKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/BannerPatternKeys.java
@ -0,0 +1,344 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.block.banner.PatternType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#BANNER_PATTERN}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class BannerPatternKeys {
+    /**
+     * {@code minecraft:base}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> BASE = create(key("base"));
+
+    /**
+     * {@code minecraft:border}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> BORDER = create(key("border"));
+
+    /**
+     * {@code minecraft:bricks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> BRICKS = create(key("bricks"));
+
+    /**
+     * {@code minecraft:circle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> CIRCLE = create(key("circle"));
+
+    /**
+     * {@code minecraft:creeper}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> CREEPER = create(key("creeper"));
+
+    /**
+     * {@code minecraft:cross}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> CROSS = create(key("cross"));
+
+    /**
+     * {@code minecraft:curly_border}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> CURLY_BORDER = create(key("curly_border"));
+
+    /**
+     * {@code minecraft:diagonal_left}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> DIAGONAL_LEFT = create(key("diagonal_left"));
+
+    /**
+     * {@code minecraft:diagonal_right}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> DIAGONAL_RIGHT = create(key("diagonal_right"));
+
+    /**
+     * {@code minecraft:diagonal_up_left}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> DIAGONAL_UP_LEFT = create(key("diagonal_up_left"));
+
+    /**
+     * {@code minecraft:diagonal_up_right}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> DIAGONAL_UP_RIGHT = create(key("diagonal_up_right"));
+
+    /**
+     * {@code minecraft:flow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> FLOW = create(key("flow"));
+
+    /**
+     * {@code minecraft:flower}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> FLOWER = create(key("flower"));
+
+    /**
+     * {@code minecraft:globe}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> GLOBE = create(key("globe"));
+
+    /**
+     * {@code minecraft:gradient}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> GRADIENT = create(key("gradient"));
+
+    /**
+     * {@code minecraft:gradient_up}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> GRADIENT_UP = create(key("gradient_up"));
+
+    /**
+     * {@code minecraft:guster}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> GUSTER = create(key("guster"));
+
+    /**
+     * {@code minecraft:half_horizontal}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> HALF_HORIZONTAL = create(key("half_horizontal"));
+
+    /**
+     * {@code minecraft:half_horizontal_bottom}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> HALF_HORIZONTAL_BOTTOM = create(key("half_horizontal_bottom"));
+
+    /**
+     * {@code minecraft:half_vertical}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> HALF_VERTICAL = create(key("half_vertical"));
+
+    /**
+     * {@code minecraft:half_vertical_right}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> HALF_VERTICAL_RIGHT = create(key("half_vertical_right"));
+
+    /**
+     * {@code minecraft:mojang}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> MOJANG = create(key("mojang"));
+
+    /**
+     * {@code minecraft:piglin}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> PIGLIN = create(key("piglin"));
+
+    /**
+     * {@code minecraft:rhombus}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> RHOMBUS = create(key("rhombus"));
+
+    /**
+     * {@code minecraft:skull}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> SKULL = create(key("skull"));
+
+    /**
+     * {@code minecraft:small_stripes}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> SMALL_STRIPES = create(key("small_stripes"));
+
+    /**
+     * {@code minecraft:square_bottom_left}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> SQUARE_BOTTOM_LEFT = create(key("square_bottom_left"));
+
+    /**
+     * {@code minecraft:square_bottom_right}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> SQUARE_BOTTOM_RIGHT = create(key("square_bottom_right"));
+
+    /**
+     * {@code minecraft:square_top_left}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> SQUARE_TOP_LEFT = create(key("square_top_left"));
+
+    /**
+     * {@code minecraft:square_top_right}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> SQUARE_TOP_RIGHT = create(key("square_top_right"));
+
+    /**
+     * {@code minecraft:straight_cross}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRAIGHT_CROSS = create(key("straight_cross"));
+
+    /**
+     * {@code minecraft:stripe_bottom}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_BOTTOM = create(key("stripe_bottom"));
+
+    /**
+     * {@code minecraft:stripe_center}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_CENTER = create(key("stripe_center"));
+
+    /**
+     * {@code minecraft:stripe_downleft}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_DOWNLEFT = create(key("stripe_downleft"));
+
+    /**
+     * {@code minecraft:stripe_downright}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_DOWNRIGHT = create(key("stripe_downright"));
+
+    /**
+     * {@code minecraft:stripe_left}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_LEFT = create(key("stripe_left"));
+
+    /**
+     * {@code minecraft:stripe_middle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_MIDDLE = create(key("stripe_middle"));
+
+    /**
+     * {@code minecraft:stripe_right}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_RIGHT = create(key("stripe_right"));
+
+    /**
+     * {@code minecraft:stripe_top}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> STRIPE_TOP = create(key("stripe_top"));
+
+    /**
+     * {@code minecraft:triangle_bottom}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> TRIANGLE_BOTTOM = create(key("triangle_bottom"));
+
+    /**
+     * {@code minecraft:triangle_top}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> TRIANGLE_TOP = create(key("triangle_top"));
+
+    /**
+     * {@code minecraft:triangles_bottom}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> TRIANGLES_BOTTOM = create(key("triangles_bottom"));
+
+    /**
+     * {@code minecraft:triangles_top}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PatternType> TRIANGLES_TOP = create(key("triangles_top"));
+
+    private BannerPatternKeys() {
+    }
+
+    /**
+     * Creates a key for {@link PatternType} in the registry {@code minecraft:banner_pattern}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<PatternType> create(final Key key) {
+        return TypedKey.create(RegistryKey.BANNER_PATTERN, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/BiomeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/BiomeKeys.java
@ -0,0 +1,498 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.block.Biome;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#BIOME}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class BiomeKeys {
+    /**
+     * {@code minecraft:badlands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> BADLANDS = create(key("badlands"));
+
+    /**
+     * {@code minecraft:bamboo_jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> BAMBOO_JUNGLE = create(key("bamboo_jungle"));
+
+    /**
+     * {@code minecraft:basalt_deltas}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> BASALT_DELTAS = create(key("basalt_deltas"));
+
+    /**
+     * {@code minecraft:beach}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> BEACH = create(key("beach"));
+
+    /**
+     * {@code minecraft:birch_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> BIRCH_FOREST = create(key("birch_forest"));
+
+    /**
+     * {@code minecraft:cherry_grove}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> CHERRY_GROVE = create(key("cherry_grove"));
+
+    /**
+     * {@code minecraft:cold_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> COLD_OCEAN = create(key("cold_ocean"));
+
+    /**
+     * {@code minecraft:crimson_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> CRIMSON_FOREST = create(key("crimson_forest"));
+
+    /**
+     * {@code minecraft:dark_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DARK_FOREST = create(key("dark_forest"));
+
+    /**
+     * {@code minecraft:deep_cold_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DEEP_COLD_OCEAN = create(key("deep_cold_ocean"));
+
+    /**
+     * {@code minecraft:deep_dark}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DEEP_DARK = create(key("deep_dark"));
+
+    /**
+     * {@code minecraft:deep_frozen_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DEEP_FROZEN_OCEAN = create(key("deep_frozen_ocean"));
+
+    /**
+     * {@code minecraft:deep_lukewarm_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DEEP_LUKEWARM_OCEAN = create(key("deep_lukewarm_ocean"));
+
+    /**
+     * {@code minecraft:deep_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DEEP_OCEAN = create(key("deep_ocean"));
+
+    /**
+     * {@code minecraft:desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DESERT = create(key("desert"));
+
+    /**
+     * {@code minecraft:dripstone_caves}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> DRIPSTONE_CAVES = create(key("dripstone_caves"));
+
+    /**
+     * {@code minecraft:end_barrens}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> END_BARRENS = create(key("end_barrens"));
+
+    /**
+     * {@code minecraft:end_highlands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> END_HIGHLANDS = create(key("end_highlands"));
+
+    /**
+     * {@code minecraft:end_midlands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> END_MIDLANDS = create(key("end_midlands"));
+
+    /**
+     * {@code minecraft:eroded_badlands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> ERODED_BADLANDS = create(key("eroded_badlands"));
+
+    /**
+     * {@code minecraft:flower_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> FLOWER_FOREST = create(key("flower_forest"));
+
+    /**
+     * {@code minecraft:forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> FOREST = create(key("forest"));
+
+    /**
+     * {@code minecraft:frozen_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> FROZEN_OCEAN = create(key("frozen_ocean"));
+
+    /**
+     * {@code minecraft:frozen_peaks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> FROZEN_PEAKS = create(key("frozen_peaks"));
+
+    /**
+     * {@code minecraft:frozen_river}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> FROZEN_RIVER = create(key("frozen_river"));
+
+    /**
+     * {@code minecraft:grove}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> GROVE = create(key("grove"));
+
+    /**
+     * {@code minecraft:ice_spikes}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> ICE_SPIKES = create(key("ice_spikes"));
+
+    /**
+     * {@code minecraft:jagged_peaks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> JAGGED_PEAKS = create(key("jagged_peaks"));
+
+    /**
+     * {@code minecraft:jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> JUNGLE = create(key("jungle"));
+
+    /**
+     * {@code minecraft:lukewarm_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> LUKEWARM_OCEAN = create(key("lukewarm_ocean"));
+
+    /**
+     * {@code minecraft:lush_caves}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> LUSH_CAVES = create(key("lush_caves"));
+
+    /**
+     * {@code minecraft:mangrove_swamp}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> MANGROVE_SWAMP = create(key("mangrove_swamp"));
+
+    /**
+     * {@code minecraft:meadow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> MEADOW = create(key("meadow"));
+
+    /**
+     * {@code minecraft:mushroom_fields}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> MUSHROOM_FIELDS = create(key("mushroom_fields"));
+
+    /**
+     * {@code minecraft:nether_wastes}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> NETHER_WASTES = create(key("nether_wastes"));
+
+    /**
+     * {@code minecraft:ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> OCEAN = create(key("ocean"));
+
+    /**
+     * {@code minecraft:old_growth_birch_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> OLD_GROWTH_BIRCH_FOREST = create(key("old_growth_birch_forest"));
+
+    /**
+     * {@code minecraft:old_growth_pine_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> OLD_GROWTH_PINE_TAIGA = create(key("old_growth_pine_taiga"));
+
+    /**
+     * {@code minecraft:old_growth_spruce_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> OLD_GROWTH_SPRUCE_TAIGA = create(key("old_growth_spruce_taiga"));
+
+    /**
+     * {@code minecraft:pale_garden}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> PALE_GARDEN = create(key("pale_garden"));
+
+    /**
+     * {@code minecraft:plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> PLAINS = create(key("plains"));
+
+    /**
+     * {@code minecraft:river}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> RIVER = create(key("river"));
+
+    /**
+     * {@code minecraft:savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SAVANNA = create(key("savanna"));
+
+    /**
+     * {@code minecraft:savanna_plateau}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SAVANNA_PLATEAU = create(key("savanna_plateau"));
+
+    /**
+     * {@code minecraft:small_end_islands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SMALL_END_ISLANDS = create(key("small_end_islands"));
+
+    /**
+     * {@code minecraft:snowy_beach}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SNOWY_BEACH = create(key("snowy_beach"));
+
+    /**
+     * {@code minecraft:snowy_plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SNOWY_PLAINS = create(key("snowy_plains"));
+
+    /**
+     * {@code minecraft:snowy_slopes}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SNOWY_SLOPES = create(key("snowy_slopes"));
+
+    /**
+     * {@code minecraft:snowy_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SNOWY_TAIGA = create(key("snowy_taiga"));
+
+    /**
+     * {@code minecraft:soul_sand_valley}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SOUL_SAND_VALLEY = create(key("soul_sand_valley"));
+
+    /**
+     * {@code minecraft:sparse_jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SPARSE_JUNGLE = create(key("sparse_jungle"));
+
+    /**
+     * {@code minecraft:stony_peaks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> STONY_PEAKS = create(key("stony_peaks"));
+
+    /**
+     * {@code minecraft:stony_shore}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> STONY_SHORE = create(key("stony_shore"));
+
+    /**
+     * {@code minecraft:sunflower_plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SUNFLOWER_PLAINS = create(key("sunflower_plains"));
+
+    /**
+     * {@code minecraft:swamp}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> SWAMP = create(key("swamp"));
+
+    /**
+     * {@code minecraft:taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> TAIGA = create(key("taiga"));
+
+    /**
+     * {@code minecraft:the_end}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> THE_END = create(key("the_end"));
+
+    /**
+     * {@code minecraft:the_void}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> THE_VOID = create(key("the_void"));
+
+    /**
+     * {@code minecraft:warm_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WARM_OCEAN = create(key("warm_ocean"));
+
+    /**
+     * {@code minecraft:warped_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WARPED_FOREST = create(key("warped_forest"));
+
+    /**
+     * {@code minecraft:windswept_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WINDSWEPT_FOREST = create(key("windswept_forest"));
+
+    /**
+     * {@code minecraft:windswept_gravelly_hills}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WINDSWEPT_GRAVELLY_HILLS = create(key("windswept_gravelly_hills"));
+
+    /**
+     * {@code minecraft:windswept_hills}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WINDSWEPT_HILLS = create(key("windswept_hills"));
+
+    /**
+     * {@code minecraft:windswept_savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WINDSWEPT_SAVANNA = create(key("windswept_savanna"));
+
+    /**
+     * {@code minecraft:wooded_badlands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Biome> WOODED_BADLANDS = create(key("wooded_badlands"));
+
+    private BiomeKeys() {
+    }
+
+    /**
+     * Creates a key for {@link Biome} in the registry {@code minecraft:worldgen/biome}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<Biome> create(final Key key) {
+        return TypedKey.create(RegistryKey.BIOME, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/BlockTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/BlockTypeKeys.java
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/CatVariantKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/CatVariantKeys.java
@ -0,0 +1,113 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.entity.Cat;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#CAT_VARIANT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class CatVariantKeys {
+    /**
+     * {@code minecraft:all_black}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> ALL_BLACK = create(key("all_black"));
+
+    /**
+     * {@code minecraft:black}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> BLACK = create(key("black"));
+
+    /**
+     * {@code minecraft:british_shorthair}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> BRITISH_SHORTHAIR = create(key("british_shorthair"));
+
+    /**
+     * {@code minecraft:calico}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> CALICO = create(key("calico"));
+
+    /**
+     * {@code minecraft:jellie}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> JELLIE = create(key("jellie"));
+
+    /**
+     * {@code minecraft:persian}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> PERSIAN = create(key("persian"));
+
+    /**
+     * {@code minecraft:ragdoll}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> RAGDOLL = create(key("ragdoll"));
+
+    /**
+     * {@code minecraft:red}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> RED = create(key("red"));
+
+    /**
+     * {@code minecraft:siamese}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> SIAMESE = create(key("siamese"));
+
+    /**
+     * {@code minecraft:tabby}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> TABBY = create(key("tabby"));
+
+    /**
+     * {@code minecraft:white}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Cat.Type> WHITE = create(key("white"));
+
+    private CatVariantKeys() {
+    }
+
+    private static TypedKey<Cat.Type> create(final Key key) {
+        return TypedKey.create(RegistryKey.CAT_VARIANT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/DamageTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/DamageTypeKeys.java
@ -0,0 +1,386 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.damage.DamageType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#DAMAGE_TYPE}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class DamageTypeKeys {
+    /**
+     * {@code minecraft:arrow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> ARROW = create(key("arrow"));
+
+    /**
+     * {@code minecraft:bad_respawn_point}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> BAD_RESPAWN_POINT = create(key("bad_respawn_point"));
+
+    /**
+     * {@code minecraft:cactus}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> CACTUS = create(key("cactus"));
+
+    /**
+     * {@code minecraft:campfire}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> CAMPFIRE = create(key("campfire"));
+
+    /**
+     * {@code minecraft:cramming}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> CRAMMING = create(key("cramming"));
+
+    /**
+     * {@code minecraft:dragon_breath}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> DRAGON_BREATH = create(key("dragon_breath"));
+
+    /**
+     * {@code minecraft:drown}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> DROWN = create(key("drown"));
+
+    /**
+     * {@code minecraft:dry_out}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> DRY_OUT = create(key("dry_out"));
+
+    /**
+     * {@code minecraft:ender_pearl}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> ENDER_PEARL = create(key("ender_pearl"));
+
+    /**
+     * {@code minecraft:explosion}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> EXPLOSION = create(key("explosion"));
+
+    /**
+     * {@code minecraft:fall}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FALL = create(key("fall"));
+
+    /**
+     * {@code minecraft:falling_anvil}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FALLING_ANVIL = create(key("falling_anvil"));
+
+    /**
+     * {@code minecraft:falling_block}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FALLING_BLOCK = create(key("falling_block"));
+
+    /**
+     * {@code minecraft:falling_stalactite}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FALLING_STALACTITE = create(key("falling_stalactite"));
+
+    /**
+     * {@code minecraft:fireball}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FIREBALL = create(key("fireball"));
+
+    /**
+     * {@code minecraft:fireworks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FIREWORKS = create(key("fireworks"));
+
+    /**
+     * {@code minecraft:fly_into_wall}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FLY_INTO_WALL = create(key("fly_into_wall"));
+
+    /**
+     * {@code minecraft:freeze}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> FREEZE = create(key("freeze"));
+
+    /**
+     * {@code minecraft:generic}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> GENERIC = create(key("generic"));
+
+    /**
+     * {@code minecraft:generic_kill}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> GENERIC_KILL = create(key("generic_kill"));
+
+    /**
+     * {@code minecraft:hot_floor}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> HOT_FLOOR = create(key("hot_floor"));
+
+    /**
+     * {@code minecraft:in_fire}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> IN_FIRE = create(key("in_fire"));
+
+    /**
+     * {@code minecraft:in_wall}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> IN_WALL = create(key("in_wall"));
+
+    /**
+     * {@code minecraft:indirect_magic}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> INDIRECT_MAGIC = create(key("indirect_magic"));
+
+    /**
+     * {@code minecraft:lava}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> LAVA = create(key("lava"));
+
+    /**
+     * {@code minecraft:lightning_bolt}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> LIGHTNING_BOLT = create(key("lightning_bolt"));
+
+    /**
+     * {@code minecraft:mace_smash}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> MACE_SMASH = create(key("mace_smash"));
+
+    /**
+     * {@code minecraft:magic}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> MAGIC = create(key("magic"));
+
+    /**
+     * {@code minecraft:mob_attack}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> MOB_ATTACK = create(key("mob_attack"));
+
+    /**
+     * {@code minecraft:mob_attack_no_aggro}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> MOB_ATTACK_NO_AGGRO = create(key("mob_attack_no_aggro"));
+
+    /**
+     * {@code minecraft:mob_projectile}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> MOB_PROJECTILE = create(key("mob_projectile"));
+
+    /**
+     * {@code minecraft:on_fire}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> ON_FIRE = create(key("on_fire"));
+
+    /**
+     * {@code minecraft:out_of_world}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> OUT_OF_WORLD = create(key("out_of_world"));
+
+    /**
+     * {@code minecraft:outside_border}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> OUTSIDE_BORDER = create(key("outside_border"));
+
+    /**
+     * {@code minecraft:player_attack}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> PLAYER_ATTACK = create(key("player_attack"));
+
+    /**
+     * {@code minecraft:player_explosion}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> PLAYER_EXPLOSION = create(key("player_explosion"));
+
+    /**
+     * {@code minecraft:sonic_boom}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> SONIC_BOOM = create(key("sonic_boom"));
+
+    /**
+     * {@code minecraft:spit}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> SPIT = create(key("spit"));
+
+    /**
+     * {@code minecraft:stalagmite}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> STALAGMITE = create(key("stalagmite"));
+
+    /**
+     * {@code minecraft:starve}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> STARVE = create(key("starve"));
+
+    /**
+     * {@code minecraft:sting}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> STING = create(key("sting"));
+
+    /**
+     * {@code minecraft:sweet_berry_bush}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> SWEET_BERRY_BUSH = create(key("sweet_berry_bush"));
+
+    /**
+     * {@code minecraft:thorns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> THORNS = create(key("thorns"));
+
+    /**
+     * {@code minecraft:thrown}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> THROWN = create(key("thrown"));
+
+    /**
+     * {@code minecraft:trident}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> TRIDENT = create(key("trident"));
+
+    /**
+     * {@code minecraft:unattributed_fireball}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> UNATTRIBUTED_FIREBALL = create(key("unattributed_fireball"));
+
+    /**
+     * {@code minecraft:wind_charge}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> WIND_CHARGE = create(key("wind_charge"));
+
+    /**
+     * {@code minecraft:wither}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> WITHER = create(key("wither"));
+
+    /**
+     * {@code minecraft:wither_skull}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<DamageType> WITHER_SKULL = create(key("wither_skull"));
+
+    private DamageTypeKeys() {
+    }
+
+    /**
+     * Creates a key for {@link DamageType} in the registry {@code minecraft:damage_type}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<DamageType> create(final Key key) {
+        return TypedKey.create(RegistryKey.DAMAGE_TYPE, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/EnchantmentKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/EnchantmentKeys.java
@ -0,0 +1,337 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.enchantments.Enchantment;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#ENCHANTMENT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class EnchantmentKeys {
+    /**
+     * {@code minecraft:aqua_affinity}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> AQUA_AFFINITY = create(key("aqua_affinity"));
+
+    /**
+     * {@code minecraft:bane_of_arthropods}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> BANE_OF_ARTHROPODS = create(key("bane_of_arthropods"));
+
+    /**
+     * {@code minecraft:binding_curse}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> BINDING_CURSE = create(key("binding_curse"));
+
+    /**
+     * {@code minecraft:blast_protection}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> BLAST_PROTECTION = create(key("blast_protection"));
+
+    /**
+     * {@code minecraft:breach}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> BREACH = create(key("breach"));
+
+    /**
+     * {@code minecraft:channeling}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> CHANNELING = create(key("channeling"));
+
+    /**
+     * {@code minecraft:density}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> DENSITY = create(key("density"));
+
+    /**
+     * {@code minecraft:depth_strider}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> DEPTH_STRIDER = create(key("depth_strider"));
+
+    /**
+     * {@code minecraft:efficiency}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> EFFICIENCY = create(key("efficiency"));
+
+    /**
+     * {@code minecraft:feather_falling}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> FEATHER_FALLING = create(key("feather_falling"));
+
+    /**
+     * {@code minecraft:fire_aspect}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> FIRE_ASPECT = create(key("fire_aspect"));
+
+    /**
+     * {@code minecraft:fire_protection}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> FIRE_PROTECTION = create(key("fire_protection"));
+
+    /**
+     * {@code minecraft:flame}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> FLAME = create(key("flame"));
+
+    /**
+     * {@code minecraft:fortune}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> FORTUNE = create(key("fortune"));
+
+    /**
+     * {@code minecraft:frost_walker}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> FROST_WALKER = create(key("frost_walker"));
+
+    /**
+     * {@code minecraft:impaling}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> IMPALING = create(key("impaling"));
+
+    /**
+     * {@code minecraft:infinity}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> INFINITY = create(key("infinity"));
+
+    /**
+     * {@code minecraft:knockback}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> KNOCKBACK = create(key("knockback"));
+
+    /**
+     * {@code minecraft:looting}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> LOOTING = create(key("looting"));
+
+    /**
+     * {@code minecraft:loyalty}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> LOYALTY = create(key("loyalty"));
+
+    /**
+     * {@code minecraft:luck_of_the_sea}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> LUCK_OF_THE_SEA = create(key("luck_of_the_sea"));
+
+    /**
+     * {@code minecraft:lure}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> LURE = create(key("lure"));
+
+    /**
+     * {@code minecraft:mending}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> MENDING = create(key("mending"));
+
+    /**
+     * {@code minecraft:multishot}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> MULTISHOT = create(key("multishot"));
+
+    /**
+     * {@code minecraft:piercing}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> PIERCING = create(key("piercing"));
+
+    /**
+     * {@code minecraft:power}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> POWER = create(key("power"));
+
+    /**
+     * {@code minecraft:projectile_protection}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> PROJECTILE_PROTECTION = create(key("projectile_protection"));
+
+    /**
+     * {@code minecraft:protection}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> PROTECTION = create(key("protection"));
+
+    /**
+     * {@code minecraft:punch}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> PUNCH = create(key("punch"));
+
+    /**
+     * {@code minecraft:quick_charge}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> QUICK_CHARGE = create(key("quick_charge"));
+
+    /**
+     * {@code minecraft:respiration}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> RESPIRATION = create(key("respiration"));
+
+    /**
+     * {@code minecraft:riptide}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> RIPTIDE = create(key("riptide"));
+
+    /**
+     * {@code minecraft:sharpness}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> SHARPNESS = create(key("sharpness"));
+
+    /**
+     * {@code minecraft:silk_touch}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> SILK_TOUCH = create(key("silk_touch"));
+
+    /**
+     * {@code minecraft:smite}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> SMITE = create(key("smite"));
+
+    /**
+     * {@code minecraft:soul_speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> SOUL_SPEED = create(key("soul_speed"));
+
+    /**
+     * {@code minecraft:sweeping_edge}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> SWEEPING_EDGE = create(key("sweeping_edge"));
+
+    /**
+     * {@code minecraft:swift_sneak}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> SWIFT_SNEAK = create(key("swift_sneak"));
+
+    /**
+     * {@code minecraft:thorns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> THORNS = create(key("thorns"));
+
+    /**
+     * {@code minecraft:unbreaking}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> UNBREAKING = create(key("unbreaking"));
+
+    /**
+     * {@code minecraft:vanishing_curse}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> VANISHING_CURSE = create(key("vanishing_curse"));
+
+    /**
+     * {@code minecraft:wind_burst}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Enchantment> WIND_BURST = create(key("wind_burst"));
+
+    private EnchantmentKeys() {
+    }
+
+    /**
+     * Creates a key for {@link Enchantment} in the registry {@code minecraft:enchantment}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<Enchantment> create(final Key key) {
+        return TypedKey.create(RegistryKey.ENCHANTMENT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/FluidKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/FluidKeys.java
@ -0,0 +1,71 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.Fluid;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#FLUID}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class FluidKeys {
+    /**
+     * {@code minecraft:empty}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> EMPTY = create(key("empty"));
+
+    /**
+     * {@code minecraft:flowing_lava}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> FLOWING_LAVA = create(key("flowing_lava"));
+
+    /**
+     * {@code minecraft:flowing_water}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> FLOWING_WATER = create(key("flowing_water"));
+
+    /**
+     * {@code minecraft:lava}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> LAVA = create(key("lava"));
+
+    /**
+     * {@code minecraft:water}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Fluid> WATER = create(key("water"));
+
+    private FluidKeys() {
+    }
+
+    private static TypedKey<Fluid> create(final Key key) {
+        return TypedKey.create(RegistryKey.FLUID, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/FrogVariantKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/FrogVariantKeys.java
@ -0,0 +1,57 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.entity.Frog;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#FROG_VARIANT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class FrogVariantKeys {
+    /**
+     * {@code minecraft:cold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Frog.Variant> COLD = create(key("cold"));
+
+    /**
+     * {@code minecraft:temperate}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Frog.Variant> TEMPERATE = create(key("temperate"));
+
+    /**
+     * {@code minecraft:warm}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Frog.Variant> WARM = create(key("warm"));
+
+    private FrogVariantKeys() {
+    }
+
+    private static TypedKey<Frog.Variant> create(final Key key) {
+        return TypedKey.create(RegistryKey.FROG_VARIANT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/GameEventKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/GameEventKeys.java
@ -0,0 +1,463 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.GameEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#GAME_EVENT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class GameEventKeys {
+    /**
+     * {@code minecraft:block_activate}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_ACTIVATE = create(key("block_activate"));
+
+    /**
+     * {@code minecraft:block_attach}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_ATTACH = create(key("block_attach"));
+
+    /**
+     * {@code minecraft:block_change}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_CHANGE = create(key("block_change"));
+
+    /**
+     * {@code minecraft:block_close}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_CLOSE = create(key("block_close"));
+
+    /**
+     * {@code minecraft:block_deactivate}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_DEACTIVATE = create(key("block_deactivate"));
+
+    /**
+     * {@code minecraft:block_destroy}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_DESTROY = create(key("block_destroy"));
+
+    /**
+     * {@code minecraft:block_detach}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_DETACH = create(key("block_detach"));
+
+    /**
+     * {@code minecraft:block_open}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_OPEN = create(key("block_open"));
+
+    /**
+     * {@code minecraft:block_place}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> BLOCK_PLACE = create(key("block_place"));
+
+    /**
+     * {@code minecraft:container_close}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> CONTAINER_CLOSE = create(key("container_close"));
+
+    /**
+     * {@code minecraft:container_open}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> CONTAINER_OPEN = create(key("container_open"));
+
+    /**
+     * {@code minecraft:drink}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> DRINK = create(key("drink"));
+
+    /**
+     * {@code minecraft:eat}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> EAT = create(key("eat"));
+
+    /**
+     * {@code minecraft:elytra_glide}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ELYTRA_GLIDE = create(key("elytra_glide"));
+
+    /**
+     * {@code minecraft:entity_action}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_ACTION = create(key("entity_action"));
+
+    /**
+     * {@code minecraft:entity_damage}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_DAMAGE = create(key("entity_damage"));
+
+    /**
+     * {@code minecraft:entity_die}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_DIE = create(key("entity_die"));
+
+    /**
+     * {@code minecraft:entity_dismount}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_DISMOUNT = create(key("entity_dismount"));
+
+    /**
+     * {@code minecraft:entity_interact}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_INTERACT = create(key("entity_interact"));
+
+    /**
+     * {@code minecraft:entity_mount}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_MOUNT = create(key("entity_mount"));
+
+    /**
+     * {@code minecraft:entity_place}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ENTITY_PLACE = create(key("entity_place"));
+
+    /**
+     * {@code minecraft:equip}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> EQUIP = create(key("equip"));
+
+    /**
+     * {@code minecraft:explode}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> EXPLODE = create(key("explode"));
+
+    /**
+     * {@code minecraft:flap}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> FLAP = create(key("flap"));
+
+    /**
+     * {@code minecraft:fluid_pickup}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> FLUID_PICKUP = create(key("fluid_pickup"));
+
+    /**
+     * {@code minecraft:fluid_place}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> FLUID_PLACE = create(key("fluid_place"));
+
+    /**
+     * {@code minecraft:hit_ground}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> HIT_GROUND = create(key("hit_ground"));
+
+    /**
+     * {@code minecraft:instrument_play}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> INSTRUMENT_PLAY = create(key("instrument_play"));
+
+    /**
+     * {@code minecraft:item_interact_finish}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ITEM_INTERACT_FINISH = create(key("item_interact_finish"));
+
+    /**
+     * {@code minecraft:item_interact_start}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> ITEM_INTERACT_START = create(key("item_interact_start"));
+
+    /**
+     * {@code minecraft:jukebox_play}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> JUKEBOX_PLAY = create(key("jukebox_play"));
+
+    /**
+     * {@code minecraft:jukebox_stop_play}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> JUKEBOX_STOP_PLAY = create(key("jukebox_stop_play"));
+
+    /**
+     * {@code minecraft:lightning_strike}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> LIGHTNING_STRIKE = create(key("lightning_strike"));
+
+    /**
+     * {@code minecraft:note_block_play}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> NOTE_BLOCK_PLAY = create(key("note_block_play"));
+
+    /**
+     * {@code minecraft:prime_fuse}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> PRIME_FUSE = create(key("prime_fuse"));
+
+    /**
+     * {@code minecraft:projectile_land}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> PROJECTILE_LAND = create(key("projectile_land"));
+
+    /**
+     * {@code minecraft:projectile_shoot}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> PROJECTILE_SHOOT = create(key("projectile_shoot"));
+
+    /**
+     * {@code minecraft:resonate_1}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_1 = create(key("resonate_1"));
+
+    /**
+     * {@code minecraft:resonate_2}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_2 = create(key("resonate_2"));
+
+    /**
+     * {@code minecraft:resonate_3}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_3 = create(key("resonate_3"));
+
+    /**
+     * {@code minecraft:resonate_4}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_4 = create(key("resonate_4"));
+
+    /**
+     * {@code minecraft:resonate_5}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_5 = create(key("resonate_5"));
+
+    /**
+     * {@code minecraft:resonate_6}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_6 = create(key("resonate_6"));
+
+    /**
+     * {@code minecraft:resonate_7}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_7 = create(key("resonate_7"));
+
+    /**
+     * {@code minecraft:resonate_8}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_8 = create(key("resonate_8"));
+
+    /**
+     * {@code minecraft:resonate_9}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_9 = create(key("resonate_9"));
+
+    /**
+     * {@code minecraft:resonate_10}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_10 = create(key("resonate_10"));
+
+    /**
+     * {@code minecraft:resonate_11}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_11 = create(key("resonate_11"));
+
+    /**
+     * {@code minecraft:resonate_12}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_12 = create(key("resonate_12"));
+
+    /**
+     * {@code minecraft:resonate_13}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_13 = create(key("resonate_13"));
+
+    /**
+     * {@code minecraft:resonate_14}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_14 = create(key("resonate_14"));
+
+    /**
+     * {@code minecraft:resonate_15}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> RESONATE_15 = create(key("resonate_15"));
+
+    /**
+     * {@code minecraft:sculk_sensor_tendrils_clicking}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> SCULK_SENSOR_TENDRILS_CLICKING = create(key("sculk_sensor_tendrils_clicking"));
+
+    /**
+     * {@code minecraft:shear}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> SHEAR = create(key("shear"));
+
+    /**
+     * {@code minecraft:shriek}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> SHRIEK = create(key("shriek"));
+
+    /**
+     * {@code minecraft:splash}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> SPLASH = create(key("splash"));
+
+    /**
+     * {@code minecraft:step}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> STEP = create(key("step"));
+
+    /**
+     * {@code minecraft:swim}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> SWIM = create(key("swim"));
+
+    /**
+     * {@code minecraft:teleport}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> TELEPORT = create(key("teleport"));
+
+    /**
+     * {@code minecraft:unequip}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<GameEvent> UNEQUIP = create(key("unequip"));
+
+    private GameEventKeys() {
+    }
+
+    /**
+     * Creates a key for {@link GameEvent} in the registry {@code minecraft:game_event}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<GameEvent> create(final Key key) {
+        return TypedKey.create(RegistryKey.GAME_EVENT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/InstrumentKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/InstrumentKeys.java
@ -0,0 +1,99 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.MusicInstrument;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#INSTRUMENT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class InstrumentKeys {
+    /**
+     * {@code minecraft:admire_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> ADMIRE_GOAT_HORN = create(key("admire_goat_horn"));
+
+    /**
+     * {@code minecraft:call_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> CALL_GOAT_HORN = create(key("call_goat_horn"));
+
+    /**
+     * {@code minecraft:dream_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> DREAM_GOAT_HORN = create(key("dream_goat_horn"));
+
+    /**
+     * {@code minecraft:feel_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> FEEL_GOAT_HORN = create(key("feel_goat_horn"));
+
+    /**
+     * {@code minecraft:ponder_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> PONDER_GOAT_HORN = create(key("ponder_goat_horn"));
+
+    /**
+     * {@code minecraft:seek_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> SEEK_GOAT_HORN = create(key("seek_goat_horn"));
+
+    /**
+     * {@code minecraft:sing_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> SING_GOAT_HORN = create(key("sing_goat_horn"));
+
+    /**
+     * {@code minecraft:yearn_goat_horn}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MusicInstrument> YEARN_GOAT_HORN = create(key("yearn_goat_horn"));
+
+    private InstrumentKeys() {
+    }
+
+    /**
+     * Creates a key for {@link MusicInstrument} in the registry {@code minecraft:instrument}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<MusicInstrument> create(final Key key) {
+        return TypedKey.create(RegistryKey.INSTRUMENT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/ItemTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/ItemTypeKeys.java
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/JukeboxSongKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/JukeboxSongKeys.java
@ -0,0 +1,176 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.JukeboxSong;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#JUKEBOX_SONG}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class JukeboxSongKeys {
+    /**
+     * {@code minecraft:11}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> ELEVEN = create(key("11"));
+
+    /**
+     * {@code minecraft:13}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> THIRTEEN = create(key("13"));
+
+    /**
+     * {@code minecraft:5}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> FIVE = create(key("5"));
+
+    /**
+     * {@code minecraft:blocks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> BLOCKS = create(key("blocks"));
+
+    /**
+     * {@code minecraft:cat}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> CAT = create(key("cat"));
+
+    /**
+     * {@code minecraft:chirp}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> CHIRP = create(key("chirp"));
+
+    /**
+     * {@code minecraft:creator}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> CREATOR = create(key("creator"));
+
+    /**
+     * {@code minecraft:creator_music_box}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> CREATOR_MUSIC_BOX = create(key("creator_music_box"));
+
+    /**
+     * {@code minecraft:far}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> FAR = create(key("far"));
+
+    /**
+     * {@code minecraft:mall}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> MALL = create(key("mall"));
+
+    /**
+     * {@code minecraft:mellohi}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> MELLOHI = create(key("mellohi"));
+
+    /**
+     * {@code minecraft:otherside}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> OTHERSIDE = create(key("otherside"));
+
+    /**
+     * {@code minecraft:pigstep}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> PIGSTEP = create(key("pigstep"));
+
+    /**
+     * {@code minecraft:precipice}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> PRECIPICE = create(key("precipice"));
+
+    /**
+     * {@code minecraft:relic}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> RELIC = create(key("relic"));
+
+    /**
+     * {@code minecraft:stal}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> STAL = create(key("stal"));
+
+    /**
+     * {@code minecraft:strad}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> STRAD = create(key("strad"));
+
+    /**
+     * {@code minecraft:wait}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> WAIT = create(key("wait"));
+
+    /**
+     * {@code minecraft:ward}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<JukeboxSong> WARD = create(key("ward"));
+
+    private JukeboxSongKeys() {
+    }
+
+    /**
+     * Creates a key for {@link JukeboxSong} in the registry {@code minecraft:jukebox_song}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<JukeboxSong> create(final Key key) {
+        return TypedKey.create(RegistryKey.JUKEBOX_SONG, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/MapDecorationTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/MapDecorationTypeKeys.java
@ -0,0 +1,281 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.map.MapCursor;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#MAP_DECORATION_TYPE}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class MapDecorationTypeKeys {
+    /**
+     * {@code minecraft:banner_black}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_BLACK = create(key("banner_black"));
+
+    /**
+     * {@code minecraft:banner_blue}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_BLUE = create(key("banner_blue"));
+
+    /**
+     * {@code minecraft:banner_brown}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_BROWN = create(key("banner_brown"));
+
+    /**
+     * {@code minecraft:banner_cyan}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_CYAN = create(key("banner_cyan"));
+
+    /**
+     * {@code minecraft:banner_gray}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_GRAY = create(key("banner_gray"));
+
+    /**
+     * {@code minecraft:banner_green}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_GREEN = create(key("banner_green"));
+
+    /**
+     * {@code minecraft:banner_light_blue}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_LIGHT_BLUE = create(key("banner_light_blue"));
+
+    /**
+     * {@code minecraft:banner_light_gray}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_LIGHT_GRAY = create(key("banner_light_gray"));
+
+    /**
+     * {@code minecraft:banner_lime}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_LIME = create(key("banner_lime"));
+
+    /**
+     * {@code minecraft:banner_magenta}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_MAGENTA = create(key("banner_magenta"));
+
+    /**
+     * {@code minecraft:banner_orange}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_ORANGE = create(key("banner_orange"));
+
+    /**
+     * {@code minecraft:banner_pink}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_PINK = create(key("banner_pink"));
+
+    /**
+     * {@code minecraft:banner_purple}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_PURPLE = create(key("banner_purple"));
+
+    /**
+     * {@code minecraft:banner_red}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_RED = create(key("banner_red"));
+
+    /**
+     * {@code minecraft:banner_white}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_WHITE = create(key("banner_white"));
+
+    /**
+     * {@code minecraft:banner_yellow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BANNER_YELLOW = create(key("banner_yellow"));
+
+    /**
+     * {@code minecraft:blue_marker}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> BLUE_MARKER = create(key("blue_marker"));
+
+    /**
+     * {@code minecraft:frame}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> FRAME = create(key("frame"));
+
+    /**
+     * {@code minecraft:jungle_temple}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> JUNGLE_TEMPLE = create(key("jungle_temple"));
+
+    /**
+     * {@code minecraft:mansion}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> MANSION = create(key("mansion"));
+
+    /**
+     * {@code minecraft:monument}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> MONUMENT = create(key("monument"));
+
+    /**
+     * {@code minecraft:player}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> PLAYER = create(key("player"));
+
+    /**
+     * {@code minecraft:player_off_limits}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> PLAYER_OFF_LIMITS = create(key("player_off_limits"));
+
+    /**
+     * {@code minecraft:player_off_map}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> PLAYER_OFF_MAP = create(key("player_off_map"));
+
+    /**
+     * {@code minecraft:red_marker}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> RED_MARKER = create(key("red_marker"));
+
+    /**
+     * {@code minecraft:red_x}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> RED_X = create(key("red_x"));
+
+    /**
+     * {@code minecraft:swamp_hut}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> SWAMP_HUT = create(key("swamp_hut"));
+
+    /**
+     * {@code minecraft:target_point}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> TARGET_POINT = create(key("target_point"));
+
+    /**
+     * {@code minecraft:target_x}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> TARGET_X = create(key("target_x"));
+
+    /**
+     * {@code minecraft:trial_chambers}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> TRIAL_CHAMBERS = create(key("trial_chambers"));
+
+    /**
+     * {@code minecraft:village_desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> VILLAGE_DESERT = create(key("village_desert"));
+
+    /**
+     * {@code minecraft:village_plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> VILLAGE_PLAINS = create(key("village_plains"));
+
+    /**
+     * {@code minecraft:village_savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> VILLAGE_SAVANNA = create(key("village_savanna"));
+
+    /**
+     * {@code minecraft:village_snowy}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> VILLAGE_SNOWY = create(key("village_snowy"));
+
+    /**
+     * {@code minecraft:village_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MapCursor.Type> VILLAGE_TAIGA = create(key("village_taiga"));
+
+    private MapDecorationTypeKeys() {
+    }
+
+    private static TypedKey<MapCursor.Type> create(final Key key) {
+        return TypedKey.create(RegistryKey.MAP_DECORATION_TYPE, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/MenuTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/MenuTypeKeys.java
@ -0,0 +1,211 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.inventory.MenuType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#MENU}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class MenuTypeKeys {
+    /**
+     * {@code minecraft:anvil}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> ANVIL = create(key("anvil"));
+
+    /**
+     * {@code minecraft:beacon}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> BEACON = create(key("beacon"));
+
+    /**
+     * {@code minecraft:blast_furnace}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> BLAST_FURNACE = create(key("blast_furnace"));
+
+    /**
+     * {@code minecraft:brewing_stand}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> BREWING_STAND = create(key("brewing_stand"));
+
+    /**
+     * {@code minecraft:cartography_table}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> CARTOGRAPHY_TABLE = create(key("cartography_table"));
+
+    /**
+     * {@code minecraft:crafter_3x3}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> CRAFTER_3X3 = create(key("crafter_3x3"));
+
+    /**
+     * {@code minecraft:crafting}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> CRAFTING = create(key("crafting"));
+
+    /**
+     * {@code minecraft:enchantment}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> ENCHANTMENT = create(key("enchantment"));
+
+    /**
+     * {@code minecraft:furnace}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> FURNACE = create(key("furnace"));
+
+    /**
+     * {@code minecraft:generic_3x3}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_3X3 = create(key("generic_3x3"));
+
+    /**
+     * {@code minecraft:generic_9x1}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_9X1 = create(key("generic_9x1"));
+
+    /**
+     * {@code minecraft:generic_9x2}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_9X2 = create(key("generic_9x2"));
+
+    /**
+     * {@code minecraft:generic_9x3}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_9X3 = create(key("generic_9x3"));
+
+    /**
+     * {@code minecraft:generic_9x4}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_9X4 = create(key("generic_9x4"));
+
+    /**
+     * {@code minecraft:generic_9x5}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_9X5 = create(key("generic_9x5"));
+
+    /**
+     * {@code minecraft:generic_9x6}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GENERIC_9X6 = create(key("generic_9x6"));
+
+    /**
+     * {@code minecraft:grindstone}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> GRINDSTONE = create(key("grindstone"));
+
+    /**
+     * {@code minecraft:hopper}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> HOPPER = create(key("hopper"));
+
+    /**
+     * {@code minecraft:lectern}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> LECTERN = create(key("lectern"));
+
+    /**
+     * {@code minecraft:loom}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> LOOM = create(key("loom"));
+
+    /**
+     * {@code minecraft:merchant}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> MERCHANT = create(key("merchant"));
+
+    /**
+     * {@code minecraft:shulker_box}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> SHULKER_BOX = create(key("shulker_box"));
+
+    /**
+     * {@code minecraft:smithing}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> SMITHING = create(key("smithing"));
+
+    /**
+     * {@code minecraft:smoker}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> SMOKER = create(key("smoker"));
+
+    /**
+     * {@code minecraft:stonecutter}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<MenuType> STONECUTTER = create(key("stonecutter"));
+
+    private MenuTypeKeys() {
+    }
+
+    private static TypedKey<MenuType> create(final Key key) {
+        return TypedKey.create(RegistryKey.MENU, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/MobEffectKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/MobEffectKeys.java
@ -0,0 +1,309 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.potion.PotionEffectType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#MOB_EFFECT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class MobEffectKeys {
+    /**
+     * {@code minecraft:absorption}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> ABSORPTION = create(key("absorption"));
+
+    /**
+     * {@code minecraft:bad_omen}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> BAD_OMEN = create(key("bad_omen"));
+
+    /**
+     * {@code minecraft:blindness}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> BLINDNESS = create(key("blindness"));
+
+    /**
+     * {@code minecraft:conduit_power}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> CONDUIT_POWER = create(key("conduit_power"));
+
+    /**
+     * {@code minecraft:darkness}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> DARKNESS = create(key("darkness"));
+
+    /**
+     * {@code minecraft:dolphins_grace}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> DOLPHINS_GRACE = create(key("dolphins_grace"));
+
+    /**
+     * {@code minecraft:fire_resistance}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> FIRE_RESISTANCE = create(key("fire_resistance"));
+
+    /**
+     * {@code minecraft:glowing}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> GLOWING = create(key("glowing"));
+
+    /**
+     * {@code minecraft:haste}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> HASTE = create(key("haste"));
+
+    /**
+     * {@code minecraft:health_boost}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> HEALTH_BOOST = create(key("health_boost"));
+
+    /**
+     * {@code minecraft:hero_of_the_village}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> HERO_OF_THE_VILLAGE = create(key("hero_of_the_village"));
+
+    /**
+     * {@code minecraft:hunger}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> HUNGER = create(key("hunger"));
+
+    /**
+     * {@code minecraft:infested}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> INFESTED = create(key("infested"));
+
+    /**
+     * {@code minecraft:instant_damage}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> INSTANT_DAMAGE = create(key("instant_damage"));
+
+    /**
+     * {@code minecraft:instant_health}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> INSTANT_HEALTH = create(key("instant_health"));
+
+    /**
+     * {@code minecraft:invisibility}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> INVISIBILITY = create(key("invisibility"));
+
+    /**
+     * {@code minecraft:jump_boost}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> JUMP_BOOST = create(key("jump_boost"));
+
+    /**
+     * {@code minecraft:levitation}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> LEVITATION = create(key("levitation"));
+
+    /**
+     * {@code minecraft:luck}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> LUCK = create(key("luck"));
+
+    /**
+     * {@code minecraft:mining_fatigue}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> MINING_FATIGUE = create(key("mining_fatigue"));
+
+    /**
+     * {@code minecraft:nausea}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> NAUSEA = create(key("nausea"));
+
+    /**
+     * {@code minecraft:night_vision}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> NIGHT_VISION = create(key("night_vision"));
+
+    /**
+     * {@code minecraft:oozing}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> OOZING = create(key("oozing"));
+
+    /**
+     * {@code minecraft:poison}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> POISON = create(key("poison"));
+
+    /**
+     * {@code minecraft:raid_omen}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> RAID_OMEN = create(key("raid_omen"));
+
+    /**
+     * {@code minecraft:regeneration}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> REGENERATION = create(key("regeneration"));
+
+    /**
+     * {@code minecraft:resistance}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> RESISTANCE = create(key("resistance"));
+
+    /**
+     * {@code minecraft:saturation}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> SATURATION = create(key("saturation"));
+
+    /**
+     * {@code minecraft:slow_falling}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> SLOW_FALLING = create(key("slow_falling"));
+
+    /**
+     * {@code minecraft:slowness}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> SLOWNESS = create(key("slowness"));
+
+    /**
+     * {@code minecraft:speed}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> SPEED = create(key("speed"));
+
+    /**
+     * {@code minecraft:strength}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> STRENGTH = create(key("strength"));
+
+    /**
+     * {@code minecraft:trial_omen}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> TRIAL_OMEN = create(key("trial_omen"));
+
+    /**
+     * {@code minecraft:unluck}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> UNLUCK = create(key("unluck"));
+
+    /**
+     * {@code minecraft:water_breathing}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> WATER_BREATHING = create(key("water_breathing"));
+
+    /**
+     * {@code minecraft:weakness}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> WEAKNESS = create(key("weakness"));
+
+    /**
+     * {@code minecraft:weaving}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> WEAVING = create(key("weaving"));
+
+    /**
+     * {@code minecraft:wind_charged}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> WIND_CHARGED = create(key("wind_charged"));
+
+    /**
+     * {@code minecraft:wither}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<PotionEffectType> WITHER = create(key("wither"));
+
+    private MobEffectKeys() {
+    }
+
+    private static TypedKey<PotionEffectType> create(final Key key) {
+        return TypedKey.create(RegistryKey.MOB_EFFECT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/PaintingVariantKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/PaintingVariantKeys.java
@ -0,0 +1,393 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.Art;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#PAINTING_VARIANT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class PaintingVariantKeys {
+    /**
+     * {@code minecraft:alban}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> ALBAN = create(key("alban"));
+
+    /**
+     * {@code minecraft:aztec}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> AZTEC = create(key("aztec"));
+
+    /**
+     * {@code minecraft:aztec2}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> AZTEC2 = create(key("aztec2"));
+
+    /**
+     * {@code minecraft:backyard}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> BACKYARD = create(key("backyard"));
+
+    /**
+     * {@code minecraft:baroque}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> BAROQUE = create(key("baroque"));
+
+    /**
+     * {@code minecraft:bomb}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> BOMB = create(key("bomb"));
+
+    /**
+     * {@code minecraft:bouquet}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> BOUQUET = create(key("bouquet"));
+
+    /**
+     * {@code minecraft:burning_skull}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> BURNING_SKULL = create(key("burning_skull"));
+
+    /**
+     * {@code minecraft:bust}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> BUST = create(key("bust"));
+
+    /**
+     * {@code minecraft:cavebird}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> CAVEBIRD = create(key("cavebird"));
+
+    /**
+     * {@code minecraft:changing}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> CHANGING = create(key("changing"));
+
+    /**
+     * {@code minecraft:cotan}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> COTAN = create(key("cotan"));
+
+    /**
+     * {@code minecraft:courbet}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> COURBET = create(key("courbet"));
+
+    /**
+     * {@code minecraft:creebet}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> CREEBET = create(key("creebet"));
+
+    /**
+     * {@code minecraft:donkey_kong}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> DONKEY_KONG = create(key("donkey_kong"));
+
+    /**
+     * {@code minecraft:earth}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> EARTH = create(key("earth"));
+
+    /**
+     * {@code minecraft:endboss}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> ENDBOSS = create(key("endboss"));
+
+    /**
+     * {@code minecraft:fern}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> FERN = create(key("fern"));
+
+    /**
+     * {@code minecraft:fighters}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> FIGHTERS = create(key("fighters"));
+
+    /**
+     * {@code minecraft:finding}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> FINDING = create(key("finding"));
+
+    /**
+     * {@code minecraft:fire}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> FIRE = create(key("fire"));
+
+    /**
+     * {@code minecraft:graham}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> GRAHAM = create(key("graham"));
+
+    /**
+     * {@code minecraft:humble}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> HUMBLE = create(key("humble"));
+
+    /**
+     * {@code minecraft:kebab}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> KEBAB = create(key("kebab"));
+
+    /**
+     * {@code minecraft:lowmist}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> LOWMIST = create(key("lowmist"));
+
+    /**
+     * {@code minecraft:match}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> MATCH = create(key("match"));
+
+    /**
+     * {@code minecraft:meditative}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> MEDITATIVE = create(key("meditative"));
+
+    /**
+     * {@code minecraft:orb}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> ORB = create(key("orb"));
+
+    /**
+     * {@code minecraft:owlemons}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> OWLEMONS = create(key("owlemons"));
+
+    /**
+     * {@code minecraft:passage}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> PASSAGE = create(key("passage"));
+
+    /**
+     * {@code minecraft:pigscene}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> PIGSCENE = create(key("pigscene"));
+
+    /**
+     * {@code minecraft:plant}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> PLANT = create(key("plant"));
+
+    /**
+     * {@code minecraft:pointer}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> POINTER = create(key("pointer"));
+
+    /**
+     * {@code minecraft:pond}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> POND = create(key("pond"));
+
+    /**
+     * {@code minecraft:pool}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> POOL = create(key("pool"));
+
+    /**
+     * {@code minecraft:prairie_ride}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> PRAIRIE_RIDE = create(key("prairie_ride"));
+
+    /**
+     * {@code minecraft:sea}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> SEA = create(key("sea"));
+
+    /**
+     * {@code minecraft:skeleton}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> SKELETON = create(key("skeleton"));
+
+    /**
+     * {@code minecraft:skull_and_roses}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> SKULL_AND_ROSES = create(key("skull_and_roses"));
+
+    /**
+     * {@code minecraft:stage}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> STAGE = create(key("stage"));
+
+    /**
+     * {@code minecraft:sunflowers}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> SUNFLOWERS = create(key("sunflowers"));
+
+    /**
+     * {@code minecraft:sunset}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> SUNSET = create(key("sunset"));
+
+    /**
+     * {@code minecraft:tides}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> TIDES = create(key("tides"));
+
+    /**
+     * {@code minecraft:unpacked}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> UNPACKED = create(key("unpacked"));
+
+    /**
+     * {@code minecraft:void}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> VOID = create(key("void"));
+
+    /**
+     * {@code minecraft:wanderer}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> WANDERER = create(key("wanderer"));
+
+    /**
+     * {@code minecraft:wasteland}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> WASTELAND = create(key("wasteland"));
+
+    /**
+     * {@code minecraft:water}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> WATER = create(key("water"));
+
+    /**
+     * {@code minecraft:wind}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> WIND = create(key("wind"));
+
+    /**
+     * {@code minecraft:wither}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Art> WITHER = create(key("wither"));
+
+    private PaintingVariantKeys() {
+    }
+
+    /**
+     * Creates a key for {@link Art} in the registry {@code minecraft:painting_variant}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<Art> create(final Key key) {
+        return TypedKey.create(RegistryKey.PAINTING_VARIANT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/SoundEventKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/SoundEventKeys.java
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/StructureKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/StructureKeys.java
@ -0,0 +1,281 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.generator.structure.Structure;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#STRUCTURE}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class StructureKeys {
+    /**
+     * {@code minecraft:ancient_city}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> ANCIENT_CITY = create(key("ancient_city"));
+
+    /**
+     * {@code minecraft:bastion_remnant}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> BASTION_REMNANT = create(key("bastion_remnant"));
+
+    /**
+     * {@code minecraft:buried_treasure}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> BURIED_TREASURE = create(key("buried_treasure"));
+
+    /**
+     * {@code minecraft:desert_pyramid}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> DESERT_PYRAMID = create(key("desert_pyramid"));
+
+    /**
+     * {@code minecraft:end_city}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> END_CITY = create(key("end_city"));
+
+    /**
+     * {@code minecraft:fortress}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> FORTRESS = create(key("fortress"));
+
+    /**
+     * {@code minecraft:igloo}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> IGLOO = create(key("igloo"));
+
+    /**
+     * {@code minecraft:jungle_pyramid}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> JUNGLE_PYRAMID = create(key("jungle_pyramid"));
+
+    /**
+     * {@code minecraft:mansion}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> MANSION = create(key("mansion"));
+
+    /**
+     * {@code minecraft:mineshaft}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> MINESHAFT = create(key("mineshaft"));
+
+    /**
+     * {@code minecraft:mineshaft_mesa}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> MINESHAFT_MESA = create(key("mineshaft_mesa"));
+
+    /**
+     * {@code minecraft:monument}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> MONUMENT = create(key("monument"));
+
+    /**
+     * {@code minecraft:nether_fossil}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> NETHER_FOSSIL = create(key("nether_fossil"));
+
+    /**
+     * {@code minecraft:ocean_ruin_cold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> OCEAN_RUIN_COLD = create(key("ocean_ruin_cold"));
+
+    /**
+     * {@code minecraft:ocean_ruin_warm}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> OCEAN_RUIN_WARM = create(key("ocean_ruin_warm"));
+
+    /**
+     * {@code minecraft:pillager_outpost}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> PILLAGER_OUTPOST = create(key("pillager_outpost"));
+
+    /**
+     * {@code minecraft:ruined_portal}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL = create(key("ruined_portal"));
+
+    /**
+     * {@code minecraft:ruined_portal_desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL_DESERT = create(key("ruined_portal_desert"));
+
+    /**
+     * {@code minecraft:ruined_portal_jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL_JUNGLE = create(key("ruined_portal_jungle"));
+
+    /**
+     * {@code minecraft:ruined_portal_mountain}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL_MOUNTAIN = create(key("ruined_portal_mountain"));
+
+    /**
+     * {@code minecraft:ruined_portal_nether}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL_NETHER = create(key("ruined_portal_nether"));
+
+    /**
+     * {@code minecraft:ruined_portal_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL_OCEAN = create(key("ruined_portal_ocean"));
+
+    /**
+     * {@code minecraft:ruined_portal_swamp}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> RUINED_PORTAL_SWAMP = create(key("ruined_portal_swamp"));
+
+    /**
+     * {@code minecraft:shipwreck}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> SHIPWRECK = create(key("shipwreck"));
+
+    /**
+     * {@code minecraft:shipwreck_beached}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> SHIPWRECK_BEACHED = create(key("shipwreck_beached"));
+
+    /**
+     * {@code minecraft:stronghold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> STRONGHOLD = create(key("stronghold"));
+
+    /**
+     * {@code minecraft:swamp_hut}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> SWAMP_HUT = create(key("swamp_hut"));
+
+    /**
+     * {@code minecraft:trail_ruins}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> TRAIL_RUINS = create(key("trail_ruins"));
+
+    /**
+     * {@code minecraft:trial_chambers}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> TRIAL_CHAMBERS = create(key("trial_chambers"));
+
+    /**
+     * {@code minecraft:village_desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> VILLAGE_DESERT = create(key("village_desert"));
+
+    /**
+     * {@code minecraft:village_plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> VILLAGE_PLAINS = create(key("village_plains"));
+
+    /**
+     * {@code minecraft:village_savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> VILLAGE_SAVANNA = create(key("village_savanna"));
+
+    /**
+     * {@code minecraft:village_snowy}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> VILLAGE_SNOWY = create(key("village_snowy"));
+
+    /**
+     * {@code minecraft:village_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Structure> VILLAGE_TAIGA = create(key("village_taiga"));
+
+    private StructureKeys() {
+    }
+
+    /**
+     * Creates a key for {@link Structure} in the registry {@code minecraft:worldgen/structure}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<Structure> create(final Key key) {
+        return TypedKey.create(RegistryKey.STRUCTURE, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/StructureTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/StructureTypeKeys.java
@ -0,0 +1,148 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.generator.structure.StructureType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#STRUCTURE_TYPE}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class StructureTypeKeys {
+    /**
+     * {@code minecraft:buried_treasure}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> BURIED_TREASURE = create(key("buried_treasure"));
+
+    /**
+     * {@code minecraft:desert_pyramid}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> DESERT_PYRAMID = create(key("desert_pyramid"));
+
+    /**
+     * {@code minecraft:end_city}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> END_CITY = create(key("end_city"));
+
+    /**
+     * {@code minecraft:fortress}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> FORTRESS = create(key("fortress"));
+
+    /**
+     * {@code minecraft:igloo}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> IGLOO = create(key("igloo"));
+
+    /**
+     * {@code minecraft:jigsaw}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> JIGSAW = create(key("jigsaw"));
+
+    /**
+     * {@code minecraft:jungle_temple}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> JUNGLE_TEMPLE = create(key("jungle_temple"));
+
+    /**
+     * {@code minecraft:mineshaft}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> MINESHAFT = create(key("mineshaft"));
+
+    /**
+     * {@code minecraft:nether_fossil}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> NETHER_FOSSIL = create(key("nether_fossil"));
+
+    /**
+     * {@code minecraft:ocean_monument}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> OCEAN_MONUMENT = create(key("ocean_monument"));
+
+    /**
+     * {@code minecraft:ocean_ruin}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> OCEAN_RUIN = create(key("ocean_ruin"));
+
+    /**
+     * {@code minecraft:ruined_portal}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> RUINED_PORTAL = create(key("ruined_portal"));
+
+    /**
+     * {@code minecraft:shipwreck}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> SHIPWRECK = create(key("shipwreck"));
+
+    /**
+     * {@code minecraft:stronghold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> STRONGHOLD = create(key("stronghold"));
+
+    /**
+     * {@code minecraft:swamp_hut}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> SWAMP_HUT = create(key("swamp_hut"));
+
+    /**
+     * {@code minecraft:woodland_mansion}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<StructureType> WOODLAND_MANSION = create(key("woodland_mansion"));
+
+    private StructureTypeKeys() {
+    }
+
+    private static TypedKey<StructureType> create(final Key key) {
+        return TypedKey.create(RegistryKey.STRUCTURE_TYPE, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/TrimMaterialKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/TrimMaterialKeys.java
@ -0,0 +1,120 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.inventory.meta.trim.TrimMaterial;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#TRIM_MATERIAL}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class TrimMaterialKeys {
+    /**
+     * {@code minecraft:amethyst}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> AMETHYST = create(key("amethyst"));
+
+    /**
+     * {@code minecraft:copper}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> COPPER = create(key("copper"));
+
+    /**
+     * {@code minecraft:diamond}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> DIAMOND = create(key("diamond"));
+
+    /**
+     * {@code minecraft:emerald}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> EMERALD = create(key("emerald"));
+
+    /**
+     * {@code minecraft:gold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> GOLD = create(key("gold"));
+
+    /**
+     * {@code minecraft:iron}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> IRON = create(key("iron"));
+
+    /**
+     * {@code minecraft:lapis}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> LAPIS = create(key("lapis"));
+
+    /**
+     * {@code minecraft:netherite}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> NETHERITE = create(key("netherite"));
+
+    /**
+     * {@code minecraft:quartz}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> QUARTZ = create(key("quartz"));
+
+    /**
+     * {@code minecraft:redstone}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> REDSTONE = create(key("redstone"));
+
+    /**
+     * {@code minecraft:resin}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimMaterial> RESIN = create(key("resin"));
+
+    private TrimMaterialKeys() {
+    }
+
+    /**
+     * Creates a key for {@link TrimMaterial} in the registry {@code minecraft:trim_material}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<TrimMaterial> create(final Key key) {
+        return TypedKey.create(RegistryKey.TRIM_MATERIAL, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/TrimPatternKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/TrimPatternKeys.java
@ -0,0 +1,169 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.inventory.meta.trim.TrimPattern;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#TRIM_PATTERN}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class TrimPatternKeys {
+    /**
+     * {@code minecraft:bolt}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> BOLT = create(key("bolt"));
+
+    /**
+     * {@code minecraft:coast}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> COAST = create(key("coast"));
+
+    /**
+     * {@code minecraft:dune}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> DUNE = create(key("dune"));
+
+    /**
+     * {@code minecraft:eye}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> EYE = create(key("eye"));
+
+    /**
+     * {@code minecraft:flow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> FLOW = create(key("flow"));
+
+    /**
+     * {@code minecraft:host}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> HOST = create(key("host"));
+
+    /**
+     * {@code minecraft:raiser}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> RAISER = create(key("raiser"));
+
+    /**
+     * {@code minecraft:rib}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> RIB = create(key("rib"));
+
+    /**
+     * {@code minecraft:sentry}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> SENTRY = create(key("sentry"));
+
+    /**
+     * {@code minecraft:shaper}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> SHAPER = create(key("shaper"));
+
+    /**
+     * {@code minecraft:silence}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> SILENCE = create(key("silence"));
+
+    /**
+     * {@code minecraft:snout}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> SNOUT = create(key("snout"));
+
+    /**
+     * {@code minecraft:spire}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> SPIRE = create(key("spire"));
+
+    /**
+     * {@code minecraft:tide}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> TIDE = create(key("tide"));
+
+    /**
+     * {@code minecraft:vex}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> VEX = create(key("vex"));
+
+    /**
+     * {@code minecraft:ward}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> WARD = create(key("ward"));
+
+    /**
+     * {@code minecraft:wayfinder}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> WAYFINDER = create(key("wayfinder"));
+
+    /**
+     * {@code minecraft:wild}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<TrimPattern> WILD = create(key("wild"));
+
+    private TrimPatternKeys() {
+    }
+
+    /**
+     * Creates a key for {@link TrimPattern} in the registry {@code minecraft:trim_pattern}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<TrimPattern> create(final Key key) {
+        return TypedKey.create(RegistryKey.TRIM_PATTERN, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/VillagerProfessionKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/VillagerProfessionKeys.java
@ -0,0 +1,141 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.entity.Villager;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#VILLAGER_PROFESSION}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class VillagerProfessionKeys {
+    /**
+     * {@code minecraft:armorer}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> ARMORER = create(key("armorer"));
+
+    /**
+     * {@code minecraft:butcher}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> BUTCHER = create(key("butcher"));
+
+    /**
+     * {@code minecraft:cartographer}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> CARTOGRAPHER = create(key("cartographer"));
+
+    /**
+     * {@code minecraft:cleric}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> CLERIC = create(key("cleric"));
+
+    /**
+     * {@code minecraft:farmer}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> FARMER = create(key("farmer"));
+
+    /**
+     * {@code minecraft:fisherman}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> FISHERMAN = create(key("fisherman"));
+
+    /**
+     * {@code minecraft:fletcher}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> FLETCHER = create(key("fletcher"));
+
+    /**
+     * {@code minecraft:leatherworker}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> LEATHERWORKER = create(key("leatherworker"));
+
+    /**
+     * {@code minecraft:librarian}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> LIBRARIAN = create(key("librarian"));
+
+    /**
+     * {@code minecraft:mason}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> MASON = create(key("mason"));
+
+    /**
+     * {@code minecraft:nitwit}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> NITWIT = create(key("nitwit"));
+
+    /**
+     * {@code minecraft:none}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> NONE = create(key("none"));
+
+    /**
+     * {@code minecraft:shepherd}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> SHEPHERD = create(key("shepherd"));
+
+    /**
+     * {@code minecraft:toolsmith}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> TOOLSMITH = create(key("toolsmith"));
+
+    /**
+     * {@code minecraft:weaponsmith}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Profession> WEAPONSMITH = create(key("weaponsmith"));
+
+    private VillagerProfessionKeys() {
+    }
+
+    private static TypedKey<Villager.Profession> create(final Key key) {
+        return TypedKey.create(RegistryKey.VILLAGER_PROFESSION, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/VillagerTypeKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/VillagerTypeKeys.java
@ -0,0 +1,85 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.entity.Villager;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#VILLAGER_TYPE}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class VillagerTypeKeys {
+    /**
+     * {@code minecraft:desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> DESERT = create(key("desert"));
+
+    /**
+     * {@code minecraft:jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> JUNGLE = create(key("jungle"));
+
+    /**
+     * {@code minecraft:plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> PLAINS = create(key("plains"));
+
+    /**
+     * {@code minecraft:savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> SAVANNA = create(key("savanna"));
+
+    /**
+     * {@code minecraft:snow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> SNOW = create(key("snow"));
+
+    /**
+     * {@code minecraft:swamp}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> SWAMP = create(key("swamp"));
+
+    /**
+     * {@code minecraft:taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Villager.Type> TAIGA = create(key("taiga"));
+
+    private VillagerTypeKeys() {
+    }
+
+    private static TypedKey<Villager.Type> create(final Key key) {
+        return TypedKey.create(RegistryKey.VILLAGER_TYPE, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/WolfVariantKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/WolfVariantKeys.java
@ -0,0 +1,106 @@
+package io.papermc.paper.registry.keys;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.TypedKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.entity.Wolf;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#WOLF_VARIANT}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class WolfVariantKeys {
+    /**
+     * {@code minecraft:ashen}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> ASHEN = create(key("ashen"));
+
+    /**
+     * {@code minecraft:black}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> BLACK = create(key("black"));
+
+    /**
+     * {@code minecraft:chestnut}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> CHESTNUT = create(key("chestnut"));
+
+    /**
+     * {@code minecraft:pale}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> PALE = create(key("pale"));
+
+    /**
+     * {@code minecraft:rusty}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> RUSTY = create(key("rusty"));
+
+    /**
+     * {@code minecraft:snowy}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> SNOWY = create(key("snowy"));
+
+    /**
+     * {@code minecraft:spotted}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> SPOTTED = create(key("spotted"));
+
+    /**
+     * {@code minecraft:striped}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> STRIPED = create(key("striped"));
+
+    /**
+     * {@code minecraft:woods}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TypedKey<Wolf.Variant> WOODS = create(key("woods"));
+
+    private WolfVariantKeys() {
+    }
+
+    /**
+     * Creates a key for {@link Wolf.Variant} in the registry {@code minecraft:wolf_variant}.
+     *
+     * @param key the value's key in the registry
+     * @return a new typed key
+     */
+    @ApiStatus.Experimental
+    public static TypedKey<Wolf.Variant> create(final Key key) {
+        return TypedKey.create(RegistryKey.WOLF_VARIANT, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/tags/BannerPatternTagKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/tags/BannerPatternTagKeys.java
@ -0,0 +1,120 @@
+package io.papermc.paper.registry.keys.tags;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.tag.TagKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.block.banner.PatternType;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#BANNER_PATTERN}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class BannerPatternTagKeys {
+    /**
+     * {@code #minecraft:no_item_required}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> NO_ITEM_REQUIRED = create(key("no_item_required"));
+
+    /**
+     * {@code #minecraft:pattern_item/bordure_indented}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_BORDURE_INDENTED = create(key("pattern_item/bordure_indented"));
+
+    /**
+     * {@code #minecraft:pattern_item/creeper}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_CREEPER = create(key("pattern_item/creeper"));
+
+    /**
+     * {@code #minecraft:pattern_item/field_masoned}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_FIELD_MASONED = create(key("pattern_item/field_masoned"));
+
+    /**
+     * {@code #minecraft:pattern_item/flow}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_FLOW = create(key("pattern_item/flow"));
+
+    /**
+     * {@code #minecraft:pattern_item/flower}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_FLOWER = create(key("pattern_item/flower"));
+
+    /**
+     * {@code #minecraft:pattern_item/globe}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_GLOBE = create(key("pattern_item/globe"));
+
+    /**
+     * {@code #minecraft:pattern_item/guster}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_GUSTER = create(key("pattern_item/guster"));
+
+    /**
+     * {@code #minecraft:pattern_item/mojang}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_MOJANG = create(key("pattern_item/mojang"));
+
+    /**
+     * {@code #minecraft:pattern_item/piglin}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_PIGLIN = create(key("pattern_item/piglin"));
+
+    /**
+     * {@code #minecraft:pattern_item/skull}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<PatternType> PATTERN_ITEM_SKULL = create(key("pattern_item/skull"));
+
+    private BannerPatternTagKeys() {
+    }
+
+    /**
+     * Creates a tag key for {@link PatternType} in the registry {@code minecraft:banner_pattern}.
+     *
+     * @param key the tag key's key
+     * @return a new tag key
+     */
+    @ApiStatus.Experimental
+    public static TagKey<PatternType> create(final Key key) {
+        return TagKey.create(RegistryKey.BANNER_PATTERN, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/tags/BiomeTagKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/tags/BiomeTagKeys.java
@ -0,0 +1,533 @@
+package io.papermc.paper.registry.keys.tags;
+
+import static net.kyori.adventure.key.Key.key;
+
+import io.papermc.paper.generated.GeneratedFrom;
+import io.papermc.paper.registry.RegistryKey;
+import io.papermc.paper.registry.tag.TagKey;
+import net.kyori.adventure.key.Key;
+import org.bukkit.block.Biome;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Vanilla keys for {@link RegistryKey#BIOME}.
+ *
+ * @apiNote The fields provided here are a direct representation of
+ * what is available from the vanilla game source. They may be
+ * changed (including removals) on any Minecraft version
+ * bump, so cross-version compatibility is not provided on the
+ * same level as it is on most of the other API.
+ */
+@SuppressWarnings({
+        "unused",
+        "SpellCheckingInspection"
+})
+@GeneratedFrom("1.21.4")
+@NullMarked
+@ApiStatus.Experimental
+public final class BiomeTagKeys {
+    /**
+     * {@code #minecraft:allows_surface_slime_spawns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> ALLOWS_SURFACE_SLIME_SPAWNS = create(key("allows_surface_slime_spawns"));
+
+    /**
+     * {@code #minecraft:allows_tropical_fish_spawns_at_any_height}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> ALLOWS_TROPICAL_FISH_SPAWNS_AT_ANY_HEIGHT = create(key("allows_tropical_fish_spawns_at_any_height"));
+
+    /**
+     * {@code #minecraft:has_closer_water_fog}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_CLOSER_WATER_FOG = create(key("has_closer_water_fog"));
+
+    /**
+     * {@code #minecraft:has_structure/ancient_city}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_ANCIENT_CITY = create(key("has_structure/ancient_city"));
+
+    /**
+     * {@code #minecraft:has_structure/bastion_remnant}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_BASTION_REMNANT = create(key("has_structure/bastion_remnant"));
+
+    /**
+     * {@code #minecraft:has_structure/buried_treasure}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_BURIED_TREASURE = create(key("has_structure/buried_treasure"));
+
+    /**
+     * {@code #minecraft:has_structure/desert_pyramid}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_DESERT_PYRAMID = create(key("has_structure/desert_pyramid"));
+
+    /**
+     * {@code #minecraft:has_structure/end_city}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_END_CITY = create(key("has_structure/end_city"));
+
+    /**
+     * {@code #minecraft:has_structure/igloo}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_IGLOO = create(key("has_structure/igloo"));
+
+    /**
+     * {@code #minecraft:has_structure/jungle_temple}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_JUNGLE_TEMPLE = create(key("has_structure/jungle_temple"));
+
+    /**
+     * {@code #minecraft:has_structure/mineshaft}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_MINESHAFT = create(key("has_structure/mineshaft"));
+
+    /**
+     * {@code #minecraft:has_structure/mineshaft_mesa}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_MINESHAFT_MESA = create(key("has_structure/mineshaft_mesa"));
+
+    /**
+     * {@code #minecraft:has_structure/nether_fortress}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_NETHER_FORTRESS = create(key("has_structure/nether_fortress"));
+
+    /**
+     * {@code #minecraft:has_structure/nether_fossil}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_NETHER_FOSSIL = create(key("has_structure/nether_fossil"));
+
+    /**
+     * {@code #minecraft:has_structure/ocean_monument}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_OCEAN_MONUMENT = create(key("has_structure/ocean_monument"));
+
+    /**
+     * {@code #minecraft:has_structure/ocean_ruin_cold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_OCEAN_RUIN_COLD = create(key("has_structure/ocean_ruin_cold"));
+
+    /**
+     * {@code #minecraft:has_structure/ocean_ruin_warm}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_OCEAN_RUIN_WARM = create(key("has_structure/ocean_ruin_warm"));
+
+    /**
+     * {@code #minecraft:has_structure/pillager_outpost}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_PILLAGER_OUTPOST = create(key("has_structure/pillager_outpost"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_DESERT = create(key("has_structure/ruined_portal_desert"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_JUNGLE = create(key("has_structure/ruined_portal_jungle"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_mountain}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_MOUNTAIN = create(key("has_structure/ruined_portal_mountain"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_nether}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_NETHER = create(key("has_structure/ruined_portal_nether"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_OCEAN = create(key("has_structure/ruined_portal_ocean"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_standard}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_STANDARD = create(key("has_structure/ruined_portal_standard"));
+
+    /**
+     * {@code #minecraft:has_structure/ruined_portal_swamp}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_RUINED_PORTAL_SWAMP = create(key("has_structure/ruined_portal_swamp"));
+
+    /**
+     * {@code #minecraft:has_structure/shipwreck}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_SHIPWRECK = create(key("has_structure/shipwreck"));
+
+    /**
+     * {@code #minecraft:has_structure/shipwreck_beached}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_SHIPWRECK_BEACHED = create(key("has_structure/shipwreck_beached"));
+
+    /**
+     * {@code #minecraft:has_structure/stronghold}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_STRONGHOLD = create(key("has_structure/stronghold"));
+
+    /**
+     * {@code #minecraft:has_structure/swamp_hut}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_SWAMP_HUT = create(key("has_structure/swamp_hut"));
+
+    /**
+     * {@code #minecraft:has_structure/trail_ruins}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_TRAIL_RUINS = create(key("has_structure/trail_ruins"));
+
+    /**
+     * {@code #minecraft:has_structure/trial_chambers}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_TRIAL_CHAMBERS = create(key("has_structure/trial_chambers"));
+
+    /**
+     * {@code #minecraft:has_structure/village_desert}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_VILLAGE_DESERT = create(key("has_structure/village_desert"));
+
+    /**
+     * {@code #minecraft:has_structure/village_plains}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_VILLAGE_PLAINS = create(key("has_structure/village_plains"));
+
+    /**
+     * {@code #minecraft:has_structure/village_savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_VILLAGE_SAVANNA = create(key("has_structure/village_savanna"));
+
+    /**
+     * {@code #minecraft:has_structure/village_snowy}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_VILLAGE_SNOWY = create(key("has_structure/village_snowy"));
+
+    /**
+     * {@code #minecraft:has_structure/village_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_VILLAGE_TAIGA = create(key("has_structure/village_taiga"));
+
+    /**
+     * {@code #minecraft:has_structure/woodland_mansion}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> HAS_STRUCTURE_WOODLAND_MANSION = create(key("has_structure/woodland_mansion"));
+
+    /**
+     * {@code #minecraft:increased_fire_burnout}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> INCREASED_FIRE_BURNOUT = create(key("increased_fire_burnout"));
+
+    /**
+     * {@code #minecraft:is_badlands}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_BADLANDS = create(key("is_badlands"));
+
+    /**
+     * {@code #minecraft:is_beach}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_BEACH = create(key("is_beach"));
+
+    /**
+     * {@code #minecraft:is_deep_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_DEEP_OCEAN = create(key("is_deep_ocean"));
+
+    /**
+     * {@code #minecraft:is_end}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_END = create(key("is_end"));
+
+    /**
+     * {@code #minecraft:is_forest}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_FOREST = create(key("is_forest"));
+
+    /**
+     * {@code #minecraft:is_hill}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_HILL = create(key("is_hill"));
+
+    /**
+     * {@code #minecraft:is_jungle}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_JUNGLE = create(key("is_jungle"));
+
+    /**
+     * {@code #minecraft:is_mountain}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_MOUNTAIN = create(key("is_mountain"));
+
+    /**
+     * {@code #minecraft:is_nether}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_NETHER = create(key("is_nether"));
+
+    /**
+     * {@code #minecraft:is_ocean}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_OCEAN = create(key("is_ocean"));
+
+    /**
+     * {@code #minecraft:is_overworld}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_OVERWORLD = create(key("is_overworld"));
+
+    /**
+     * {@code #minecraft:is_river}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_RIVER = create(key("is_river"));
+
+    /**
+     * {@code #minecraft:is_savanna}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_SAVANNA = create(key("is_savanna"));
+
+    /**
+     * {@code #minecraft:is_taiga}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> IS_TAIGA = create(key("is_taiga"));
+
+    /**
+     * {@code #minecraft:mineshaft_blocking}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> MINESHAFT_BLOCKING = create(key("mineshaft_blocking"));
+
+    /**
+     * {@code #minecraft:more_frequent_drowned_spawns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> MORE_FREQUENT_DROWNED_SPAWNS = create(key("more_frequent_drowned_spawns"));
+
+    /**
+     * {@code #minecraft:plays_underwater_music}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> PLAYS_UNDERWATER_MUSIC = create(key("plays_underwater_music"));
+
+    /**
+     * {@code #minecraft:polar_bears_spawn_on_alternate_blocks}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> POLAR_BEARS_SPAWN_ON_ALTERNATE_BLOCKS = create(key("polar_bears_spawn_on_alternate_blocks"));
+
+    /**
+     * {@code #minecraft:produces_corals_from_bonemeal}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> PRODUCES_CORALS_FROM_BONEMEAL = create(key("produces_corals_from_bonemeal"));
+
+    /**
+     * {@code #minecraft:reduce_water_ambient_spawns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> REDUCE_WATER_AMBIENT_SPAWNS = create(key("reduce_water_ambient_spawns"));
+
+    /**
+     * {@code #minecraft:required_ocean_monument_surrounding}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> REQUIRED_OCEAN_MONUMENT_SURROUNDING = create(key("required_ocean_monument_surrounding"));
+
+    /**
+     * {@code #minecraft:snow_golem_melts}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> SNOW_GOLEM_MELTS = create(key("snow_golem_melts"));
+
+    /**
+     * {@code #minecraft:spawns_cold_variant_frogs}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> SPAWNS_COLD_VARIANT_FROGS = create(key("spawns_cold_variant_frogs"));
+
+    /**
+     * {@code #minecraft:spawns_gold_rabbits}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> SPAWNS_GOLD_RABBITS = create(key("spawns_gold_rabbits"));
+
+    /**
+     * {@code #minecraft:spawns_snow_foxes}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> SPAWNS_SNOW_FOXES = create(key("spawns_snow_foxes"));
+
+    /**
+     * {@code #minecraft:spawns_warm_variant_frogs}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> SPAWNS_WARM_VARIANT_FROGS = create(key("spawns_warm_variant_frogs"));
+
+    /**
+     * {@code #minecraft:spawns_white_rabbits}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> SPAWNS_WHITE_RABBITS = create(key("spawns_white_rabbits"));
+
+    /**
+     * {@code #minecraft:stronghold_biased_to}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> STRONGHOLD_BIASED_TO = create(key("stronghold_biased_to"));
+
+    /**
+     * {@code #minecraft:water_on_map_outlines}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> WATER_ON_MAP_OUTLINES = create(key("water_on_map_outlines"));
+
+    /**
+     * {@code #minecraft:without_patrol_spawns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> WITHOUT_PATROL_SPAWNS = create(key("without_patrol_spawns"));
+
+    /**
+     * {@code #minecraft:without_wandering_trader_spawns}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> WITHOUT_WANDERING_TRADER_SPAWNS = create(key("without_wandering_trader_spawns"));
+
+    /**
+     * {@code #minecraft:without_zombie_sieges}
+     *
+     * @apiNote This field is version-dependant and may be removed in future Minecraft versions
+     */
+    public static final TagKey<Biome> WITHOUT_ZOMBIE_SIEGES = create(key("without_zombie_sieges"));
+
+    private BiomeTagKeys() {
+    }
+
+    /**
+     * Creates a tag key for {@link Biome} in the registry {@code minecraft:worldgen/biome}.
+     *
+     * @param key the tag key's key
+     * @return a new tag key
+     */
+    @ApiStatus.Experimental
+    public static TagKey<Biome> create(final Key key) {
+        return TagKey.create(RegistryKey.BIOME, key);
+    }
+}
--- a/paper-api-generator/generated/io/papermc/paper/registry/keys/tags/BlockTypeTagKeys.java
+++ b/paper-api-generator/generated/io/papermc/paper/registry/keys/tags/BlockTypeTagKeys.java
--- a/Mehr anzeigen
+++ b/Mehr anzeigen