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Minecraft 21w43a

Weekly work-in-progress build. Things break and get removed again. Full source data for this version is extracted and browsable below.

2,112 names shipped in this version. Each result opens the wiki page for that thing.

Contents (7)
  1. What changed in 21w43a
  2. New in-game text
  3. Reworded text
  4. Fixes
  5. Development cycle
  6. Browse this version
  7. Neighbouring versions

Java What changed in 21w43a

Everything below is measured by comparing the game files of 21w42a with 21w43a — not copied from patch notes.

New in-game text 3

KeyText
options.prioritizeChunkUpdates.byPlayer.tooltipSome actions within a chunk will recompile the chunk immediately. This includes block placing & destroying.
options.prioritizeChunkUpdates.nearby.tooltipNearby chunks are always compiled immediately. This may impact game performance when blocks are placed or destroyed.
options.prioritizeChunkUpdates.none.tooltipNearby chunks are compiled in parallel threads. This may result in brief visual holes when blocks are destroyed.

Reworded text 4

Wording Mojang changed in this version.

KeyBeforeAfter
options.prioritizeChunkUpdatesPriority updatesChunk Builder
options.prioritizeChunkUpdates.byPlayerby playerSemi Blocking
options.prioritizeChunkUpdates.nearbynearbyFully Blocking
options.prioritizeChunkUpdates.nonenoneThreaded

Fixes 8

Read from Mojang’s own release notes for Minecraft Snapshot 21w43a, published 2021-10-27. Every entry keeps its original bug ID.

8 issues fixed, read from Mojang’s own patch notes. Each entry keeps its original bug ID.

Fixed bugs in 21w43a 8

  • MC-131930 Deep warm ocean generates without coral and sea pickles
  • MC-156616 Badlands layers not generating properly
  • MC-217379 Pufferfish don't spawn in deep warm ocean
  • MC-236624 Deep Warm Oceans don't count towards the "Adventuring Time" advancement
  • MC-236970 Badlands strata is covered by orange terracotta at Y=160 and above
  • MC-238073 Decorators are independent of world seed
  • MC-238939 Stone can generate in the Nether
  • MC-239397 Lava pockets generate in icebergs

Development cycle

This build was part of the run-up to 1.18. Everything tested here landed in that release.

Browse this version