Drop <1.20.50

core/src/main/java/org/geysermc/geyser/network/GameProtocol.java

@@ -29,13 +29,8 @@ import com.github.steveice10.mc.protocol.codec.MinecraftCodec;
 import com.github.steveice10.mc.protocol.codec.PacketCodec;
 import org.checkerframework.checker.nullness.qual.Nullable;
 import org.cloudburstmc.protocol.bedrock.codec.BedrockCodec;
-import org.cloudburstmc.protocol.bedrock.codec.v589.Bedrock_v589;
-import org.cloudburstmc.protocol.bedrock.codec.v594.Bedrock_v594;
-import org.cloudburstmc.protocol.bedrock.codec.v618.Bedrock_v618;
-import org.cloudburstmc.protocol.bedrock.codec.v622.Bedrock_v622;
 import org.cloudburstmc.protocol.bedrock.codec.v630.Bedrock_v630;
 import org.cloudburstmc.protocol.bedrock.netty.codec.packet.BedrockPacketCodec;
-import org.geysermc.geyser.session.GeyserSession;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -63,18 +58,11 @@ public final class GameProtocol {
     private static final PacketCodec DEFAULT_JAVA_CODEC = MinecraftCodec.CODEC;
 
     static {
-        SUPPORTED_BEDROCK_CODECS.add(Bedrock_v589.CODEC.toBuilder()
-            .minecraftVersion("1.20.0/1.20.1")
-            .build());
-        SUPPORTED_BEDROCK_CODECS.add(Bedrock_v594.CODEC.toBuilder()
-            .minecraftVersion("1.20.10/1.20.15")
-            .build());
-        SUPPORTED_BEDROCK_CODECS.add(Bedrock_v618.CODEC.toBuilder()
-            .minecraftVersion("1.20.30/1.20.32")
-            .build());
+        /*
         SUPPORTED_BEDROCK_CODECS.add(Bedrock_v622.CODEC.toBuilder()
             .minecraftVersion("1.20.40/1.20.41")
             .build());
+         */
         SUPPORTED_BEDROCK_CODECS.add(DEFAULT_BEDROCK_CODEC);
     }
 
@@ -94,18 +82,6 @@ public final class GameProtocol {
 
     /* Bedrock convenience methods to gatekeep features and easily remove the check on version removal */
 
-    public static boolean isPre1_20_10(GeyserSession session) {
-        return session.getUpstream().getProtocolVersion() < Bedrock_v594.CODEC.getProtocolVersion();
-    }
-
-    /**
-     * @param session the session to check
-     * @return true if the session needs an experiment for recipe unlocking
-     */
-    public static boolean isUsingExperimentalRecipeUnlocking(GeyserSession session) {
-        return session.getUpstream().getProtocolVersion() == Bedrock_v594.CODEC.getProtocolVersion();
-    }
-
     /**
      * Gets the {@link PacketCodec} for Minecraft: Java Edition.
      *

core/src/main/java/org/geysermc/geyser/registry/populator/BlockRegistryPopulator.java

@@ -122,17 +122,9 @@ public final class BlockRegistryPopulator {
     }
 
     private static void registerBedrockBlocks() {
-        Remapper mapper594 = Remapper.of(BlockStateUpdater_1_20_10.INSTANCE);
-        Remapper mapper618 = Remapper.of(BlockStateUpdater_1_20_10.INSTANCE, BlockStateUpdater_1_20_30.INSTANCE);
-        Remapper mapper622 = Remapper.of(BlockStateUpdater_1_20_10.INSTANCE, BlockStateUpdater_1_20_30.INSTANCE, BlockStateUpdater_1_20_40.INSTANCE);
-        Remapper mapper630 = Remapper.of(BlockStateUpdater_1_20_10.INSTANCE, BlockStateUpdater_1_20_30.INSTANCE, BlockStateUpdater_1_20_40.INSTANCE, BlockStateUpdater_1_20_50.INSTANCE);
-
         var blockMappers = ImmutableMap.<ObjectIntPair<String>, Remapper>builder()
-                .put(ObjectIntPair.of("1_20_0", Bedrock_v589.CODEC.getProtocolVersion()), tag -> tag)
-                .put(ObjectIntPair.of("1_20_10", Bedrock_v594.CODEC.getProtocolVersion()), mapper594)
-                .put(ObjectIntPair.of("1_20_30", Bedrock_v618.CODEC.getProtocolVersion()), mapper618)
-                .put(ObjectIntPair.of("1_20_40", Bedrock_v622.CODEC.getProtocolVersion()), mapper622)
-                .put(ObjectIntPair.of("1_20_50", Bedrock_v630.CODEC.getProtocolVersion()), mapper630)
+                //.put(ObjectIntPair.of("1_20_40", Bedrock_v622.CODEC.getProtocolVersion()), mapper622)
+                .put(ObjectIntPair.of("1_20_50", Bedrock_v630.CODEC.getProtocolVersion()), tag -> tag)
                 .build();
 
         // We can keep this strong as nothing should be garbage collected

core/src/main/java/org/geysermc/geyser/registry/populator/ItemRegistryPopulator.java

@@ -89,34 +89,8 @@ public class ItemRegistryPopulator {
     }
 
     public static void populate() {
-        // Forward-map 1.20 mappings to 1.20.10
-        Remapper remapper594 = (item, mapping) -> {
-            // 1.20.10+ received parity for concrete and shulker boxes
-            String id = item.javaIdentifier();
-            if (id.endsWith("_concrete") || id.endsWith("_shulker_box")) {
-                // the first underscore in "_shulker_box" accounts for ignoring "minecraft:shulker_box"
-                // which is mapped to "minecraft:undyed_shulker_box"
-                return mapping.withBedrockIdentifier(id);
-            }
-            return mapping;
-        };
-        // 1.20 to 1.20.30
-        Remapper remapper618 = (item, mapping) -> {
-            mapping = remapper594.remap(item, mapping); // apply 1.20.10 remapper first
-
-            String id = item.javaIdentifier();
-            if (id.endsWith("concrete_powder") || id.contains("stained_glass") || (id.endsWith("_terracotta") && !id.contains("glazed"))) {
-                // parity: concrete powder, stained-glass blocks and panes, and coloured terracotta
-                // 1.   'minecraft:terracotta' is still 'minecraft:hardened_clay'
-                // 2.   there were no changes for glazed, but it doesn't have full parity, so ignore it.
-                return mapping.withBedrockIdentifier(id);
-            }
-            return mapping;
-        };
-
+        /*
         Remapper remapper630 = (item, mapping) -> {
-            mapping = remapper618.remap(item, mapping); // apply 1.20.30 remapper first
-
             String id = item.javaIdentifier();
             // 1.20.50 replaced stone & planks to individual stone types
             // E.g.: granite, diorite, andesite, polished variants, dark_oak_planks etc
@@ -126,13 +100,11 @@ public class ItemRegistryPopulator {
 
             return mapping;
         };
+         */
 
         List<PaletteVersion> paletteVersions = new ArrayList<>(3);
-        paletteVersions.add(new PaletteVersion("1_20_0", Bedrock_v589.CODEC.getProtocolVersion()));
-        paletteVersions.add(new PaletteVersion("1_20_10", Bedrock_v594.CODEC.getProtocolVersion(), Collections.emptyMap(), remapper594));
-        paletteVersions.add(new PaletteVersion("1_20_30", Bedrock_v618.CODEC.getProtocolVersion(), Collections.emptyMap(), remapper618));
-        paletteVersions.add(new PaletteVersion("1_20_40", Bedrock_v622.CODEC.getProtocolVersion(), Collections.emptyMap(), remapper618)); // NO item changes between 1.20.30 and 1.20.40
-        paletteVersions.add(new PaletteVersion("1_20_50", Bedrock_v630.CODEC.getProtocolVersion(), Collections.emptyMap(), remapper630));
+        //paletteVersions.add(new PaletteVersion("1_20_40", Bedrock_v622.CODEC.getProtocolVersion(), Collections.emptyMap(), remapper618)); // NO item changes between 1.20.30 and 1.20.40
+        paletteVersions.add(new PaletteVersion("1_20_50", Bedrock_v630.CODEC.getProtocolVersion()));
 
         GeyserBootstrap bootstrap = GeyserImpl.getInstance().getBootstrap();
 

core/src/main/java/org/geysermc/geyser/session/GeyserSession.java

@@ -129,7 +129,6 @@ import org.geysermc.geyser.item.Items;
 import org.geysermc.geyser.level.JavaDimension;
 import org.geysermc.geyser.level.WorldManager;
 import org.geysermc.geyser.level.physics.CollisionManager;
-import org.geysermc.geyser.network.GameProtocol;
 import org.geysermc.geyser.network.netty.LocalSession;
 import org.geysermc.geyser.registry.Registries;
 import org.geysermc.geyser.registry.type.BlockMappings;
@@ -699,10 +698,8 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
         gamerulePacket.getGameRules().add(new GameRuleData<>("keepinventory", true));
         // Ensure client doesn't try and do anything funky; the server handles this for us
         gamerulePacket.getGameRules().add(new GameRuleData<>("spawnradius", 0));
-        // Recipe unlocking - only needs to be added if 1. it isn't already on via an experiment, or 2. the client is on pre 1.20.10
-        if (!GameProtocol.isPre1_20_10(this) && !GameProtocol.isUsingExperimentalRecipeUnlocking(this)) {
+        // Recipe unlocking
         gamerulePacket.getGameRules().add(new GameRuleData<>("recipesunlock", true));
-        }
         upstream.sendPacket(gamerulePacket);
     }
 
@@ -1561,10 +1558,6 @@ public class GeyserSession implements GeyserConnection, GeyserCommandSource {
         startGamePacket.setRewindHistorySize(0);
         startGamePacket.setServerAuthoritativeBlockBreaking(false);
 
-        if (GameProtocol.isUsingExperimentalRecipeUnlocking(this)) {
-            startGamePacket.getExperiments().add(new ExperimentData("recipe_unlocking", true));
-        }
-
         upstream.sendPacket(startGamePacket);
     }
 

core/src/main/java/org/geysermc/geyser/translator/protocol/java/JavaClientboundRecipesTranslator.java

@@ -40,11 +40,6 @@ public class JavaClientboundRecipesTranslator extends PacketTranslator<Clientbou
 
     @Override
     public void translate(GeyserSession session, ClientboundRecipePacket packet) {
-        // recipe unlocking does not exist pre 1.20.10
-        if (GameProtocol.isPre1_20_10(session)) {
-            return;
-        }
-
         UnlockedRecipesPacket recipesPacket = new UnlockedRecipesPacket();
         switch (packet.getAction()) {
             case INIT -> {