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Minecraft 21w37a

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

2,111 names shipped in this version. Each result opens the wiki page for that thing.

Contents (8)
  1. What changed in 21w37a
  2. Sound events
  3. New in-game text
  4. Reworded text
  5. Fixes
  6. Development cycle
  7. Browse this version
  8. Neighbouring versions

Java What changed in 21w37a

Everything below is measured by comparing the game files of 1.17.1 with 21w37a — not copied from patch notes.

+3Sound events

Sound events +3

Item.Bundle.Drop ContentsItem.Bundle.InsertItem.Bundle.Remove One

New in-game text 19

KeyText
commands.jfr.dump.failedFailed to dump JFR recording: %s
commands.jfr.start.failedFailed to start JFR profiling
commands.jfr.startedJFR profiling started
commands.jfr.stoppedJFR profiling stopped and dumped to %s
controls.keybindsKey Binds...
controls.keybinds.titleKey Binds
options.audioDeviceDevice
options.audioDevice.defaultSystem Default
options.hideLightningFlashesHide Lightning Flashes
options.hideLightningFlashes.tooltipPrevents lightning bolts from making the sky flash. The bolts themselves will still be visible.
options.prioritizeChunkUpdatesPriority updates
options.prioritizeChunkUpdates.byPlayerby player
options.prioritizeChunkUpdates.nearbynearby
options.prioritizeChunkUpdates.nonenone
selectWorld.conversion.tooltipThis world must be opened in an older version (like 1.6.4) to be safely converted
selectWorld.incompatible_seriesCreated by an incompatible version
subtitles.item.bundle.drop_contentsBundle empties
subtitles.item.bundle.insertItem packed
subtitles.item.bundle.remove_oneItem unpacked

Reworded text 1

Wording Mojang changed in this version.

KeyBeforeAfter
selectWorld.pre_worldheightLoading of worlds with extended height is disabled.Incompatible world height
Full comparison pageEvery registry, side by side

Fixes 43

Read from Mojang’s own release notes for Minecraft Snapshot 21w37a, published 2021-09-15. Every entry keeps its original bug ID.

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

Fixed bugs in 21w37a 43

  • MC-29274 Withers will not pursue players in survival mode unless attacked
  • MC-30560 River through Eroded Badlands biome generates floating rock formations at water surface
  • MC-54545 Client render distance doesn't adjust to server render distance if they are different, causing faulty chunk loading
  • MC-65628 Desert pyramids generate underground when using amplified or custom terrain
  • MC-123277 Too long scoreboard objectives and team names are not detected when commands are parsed
  • MC-129266 Jagged ocean transitions and slower biome generation
  • MC-138801 The interactions between a biome and another biome and its variants are inconsistent
  • MC-140690 Giant Spruce Taiga Hills has no difference with Giant Spruce Taiga
  • MC-159025 Drowned do not spawn in warm ocean biomes
  • MC-160710 Chat messages written while sleeping are deleted after waking up
  • MC-166423 Splash water bottles don't damage endermen
  • MC-182362 Score callbacks with a too long name break callback chain
  • MC-202376 Rabbits, instead of spawning on snow blocks, spawn on snow layers
  • MC-208601 Axolotls do not avoid danger when pathfinding
  • MC-212113 Glow Lichen can spawn underwater whilst not in a cave.
  • MC-213779 FPS drops when looking up in a tall world (4064 blocks
  • MC-214783 Oceans generate with stone floors
  • MC-214797 Pointed dripstone can generate floating at transitions between local water levels
  • MC-214799 Aquifiers sometimes create air pockets
  • MC-214864 Hard edges when new caves generate near surface
  • MC-214989 Isolated floating mineshaft platform
  • MC-215296 Mineshafts often don't generate in floating island worlds
  • MC-215876 Dirt can generate below y=0 from mineshafts
  • MC-216784 Ruined Portals don't generate below y=0
  • MC-216952 Some chunks interrupting with cave systems filled with blocks
  • MC-216967 Kelp & Seagrass can generate in aquifers
  • MC-217465 Unnatural shape looking like a chunk border but appears to be completely unrelated to chunk borders
  • MC-217509 Inefficient generation of aquifers, noise caves and ore veins
  • MC-219774 Magma blocks generate everywhere underwater in 21w10a
  • MC-219946 Weird flat sections of terrain
  • MC-221777 Horses donkeys, mules, llamas, and trader llamas do not follow players holding food
  • MC-221815 Flat roofs in underwater caves
  • MC-221917 Dripstone, pointed dripstone, and cave magma generate in oceans
  • MC-222051 Iron Ore generation was not increased in 21w13a
  • MC-222379 Magma can spawn under air in underwater caves
  • MC-223044 Floating Water can generate in ravines
  • MC-223051 Dripstone can generate in surface lakes
  • MC-223148 Extended height message goes behind the scrolling bar
  • MC-226184 Axolotls pathfinding to water can sometimes fall in wide holes
  • MC-227244 Ore blocks from ore veins float in underwater magma ravines
  • MC-230343 Parity issue: enchanting tables do not emit a light level of 7
  • MC-231721 Dinnerbone Animals do not look at food correctly.
  • MC-231863 Game crashes when trying to access the realms settings

Development cycle

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

Minecraft 1.18The release this one led to

Browse this version

BlocksEvery blockItemsEvery itemRecipesEvery recipeTagsEvery tag

Neighbouring versions

← 1.17.1 (previous)21w38a (next) →