Patch documentation to come
Issues with the old system that are fixed now:
- World generation does not scale with cpu cores effectively.
- Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps.
- Unreliable prioritisation of chunk gen/load calls that block the main thread.
- Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved.
- Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal.
- Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles.
The above list is not complete. The patch documentation will complete it.
New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil.
Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft.
The old legacy chunk system patches have been moved to the removed folder in case we need them again.
Reduce the impact from EAR on hopper minecart based unloaders by making them immune to
EAR while pulling objects. The EAR is still active outside misc activation range when
the hopper minecart is idle, keeping lag low.
* Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
8085edde SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls
04c7e13c PR-719: Add Player Profile API
71564210 SPIGOT-6910: Add BlockDamageAbortEvent
CraftBukkit Changes:
febaa1c6 SPIGOT-6918: Add SpawnCategory API and configurations for Axolotls
9dafd109 Don't send updates over large distances
bdac46b0 SPIGOT-6782: EntityPortalEvent should not destroy entity when setTo() uses same world as getFrom()
8f361ece PR-1002: Add Player Profile API
911875d4 Increase outdated build delay
e5f8a767 SPIGOT-6917: Use main scoreboard for /trigger
a672a531 Clean up callBlockDamageEvent
8e1bdeef SPIGOT-6910: Add BlockDamageAbortEvent
Spigot Changes:
6edb62f3 Rebuild patches
7fbc6a1e Rebuild patches
* Updated Upstream (CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
CraftBukkit Changes:
de951355 SPIGOT-6927: Fix default value of spawn-limits in Worlds
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
9115281f SPIGOT-6832: Improve Player#getPing docs
CraftBukkit Changes:
fd3478bc7 #967: Store last lava contact location for events
Spigot Changes:
dbf49382 Rebuild patches
58cb9d26 #113: Use simulationDistance for entity activation range base
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
c9a46ebf #653: Add World#spawn with randomizeData parameter
e49c2e3a Damageable should extend ItemMeta
01ff04f4 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
ca5b4b1a SPIGOT-6697: Deprecate generateTree with BlockChangeDelegate as it does not handle tiles
CraftBukkit Changes:
7c8bbcbe SPIGOT-6716: Preserve the order of stored enchantments of enchanted books.
18027d02 #914: Add World#spawn with randomizeData parameter
3cad0316 SPIGOT-6714: Don't fire PlayerBucketEvent when empty
8c6d60cf Fix server crash with BlockPopulator when entities are at a negative chunk border
4f6bcc84 SPIGOT-5880, SPIGOT-5567: New ChunkGenerator API
78d5b35b SPIGOT-6697: Restore generateTree with BlockChangeDelegate behaviour
15792f0d Rebuild patch
c949675e SPIGOT-6713: Cancelling EntityTransformEvent Causes Deceased Slimes To Not Despawn
a955f15c Fix issues with new ChunkGenerator API
a0a37f41 SPIGOT-6630: Replacing an enchantment on an item creates a conflict error
Spigot Changes:
b166a49b Rebuild patches
3c1fc60a SPIGOT-6693: Composters only take in one item at custom hopper speeds
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
17c35d6e SPIGOT-6637: Revert "#636: Add FurnaceStartSmeltEvent"
4b27230b SPIGOT-6623: Missing API reasons for entity freezing
e1528c85 #636: Add FurnaceStartSmeltEvent
CraftBukkit Changes:
a6292cc3 SPIGOT-6637: Revert "#874: Add FurnaceStartSmeltEvent"
f4066854 SPIGOT-6579: DragonFireBall movement with setDirection jumps around a lot
9add952b SPIGOT-6623: Missing API reasons for entity freezing
2ea359f1 #874: Add FurnaceStartSmeltEvent
be8d625e SPIGOT-5560, SPIGOT-6574, SPIGOT-6632: Remove no longer needed tile entity fix
Spigot Changes:
eac3cd96 Rebuild patches
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing
Bukkit Changes:
2dbec584 SPIGOT-6570: Missing InventoryType: COMPOSTER
e9ce88b9 SPIGOT-6562: Add more specific sculk sensor event
CraftBukkit Changes:
9122f5a6 #869: Fix BossBar setColor and setStyle updates
96a15d7a Incrase outdated build delay
ded19075 SPIGOT-6570: Missing InventoryType: COMPOSTER
d7ef1e91 SPIGOT-6558: Attempt to improve SkullMeta
e7a63287 SPIGOT-6562: Add more specific sculk sensor event
Spigot Changes:
101ebb63 SPIGOT-6573: Berry Bushes deal damage when not moving
