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Minecraft 25w43a

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

2,823 names shipped in this version. Each result opens the wiki page for that thing.

Contents (8)
  1. What changed in 25w43a
  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 25w43a

Everything below is measured by comparing the game files of 25w42a with 25w43a — not copied from patch notes.

+1Sound events

Sound events +1

Item.Underwater Saddle.Equip

New in-game text 1

KeyText
subtitles.item.underwater_saddle.equipSaddle equips

Reworded text 23

Wording Mojang changed in this version.

KeyBeforeAfter
debug.entry.overlayIn overlayIn Overlay
key.debug.clearChatClear chatClear Chat
key.debug.copyLocationCopy locationCopy Location
key.debug.copyRecreateCommandCopy dataCopy Data
key.debug.crashDebug crashDebug Crash
key.debug.debugOptionsDebug optionsDebug Options
key.debug.dumpDynamicTexturesDump dynamic texturesDump Dynamic Textures
key.debug.dumpVersionDump version infoDump Version Info
key.debug.focusPauseToggle lost focus pauseToggle Lost Focus Pause
key.debug.fpsChartsFPS chartsFPS Charts
key.debug.modifierDebug modifier keyDebug Modifier Key
key.debug.networkChartsNetwork chartsNetwork Charts
key.debug.overlayToggle overlayToggle Overlay
key.debug.profilingStart/stop profilingStart/Stop Profiling
key.debug.profilingChartProfiling chartProfiling Chart
key.debug.reloadChunkReload chunksReload Chunks
key.debug.reloadResourcePacksReload resource packsReload Resource Packs
key.debug.showAdvancedTooltipsShow advanced tooltipsShow Advanced Tooltips
key.debug.showChunkBordersShow chunk boundariesShow Chunk Boundaries
key.debug.showHitboxesShow hitboxesShow Hitboxes
key.debug.spectateCycle spectatorCycle Spectator
key.debug.switchGameModeGame mode switcherGame Mode Switcher
mco.configure.world.name.validation.whitespaceMust not start or end with whitespaceMust not start or end with whitespace. It will be trimmed.
Full comparison pageEvery registry, side by side

Fixes 28

Read from Mojang’s own release notes for Minecraft Snapshot 25w43a, published 2025-10-21. Every entry keeps its original bug ID.

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

Fixed bugs in 25w43a 28

  • MC-53491 The world border can change in size when the game is paused
  • MC-302669 Banners sometimes show incorrect textures when viewed from some angles
  • MC-302675 Some item frames do not render their item correctly after world upgrade
  • MC-302691 Held and dropped items sometimes fail to render correctly when banners exist in the world
  • MC-302695 Can use the game mode switcher while the game is paused, and doing so unpauses the game
  • MC-302719 Debug key binds text is improperly capitalized
  • MC-302724 The "debug.entry.overlay" string is improperly capitalized
  • MC-302737 After using the game mode switcher, you need to press F3 twice to toggle the debug overlay
  • MC-302769 Several blocks now turn invisible at short distances
  • MC-302790 The minecraft:apply_impulse effect cannot be used in minecraft:location_changed
  • MC-302849 Mobs with spears deal too little damage
  • MC-302854 Glass is less transparent when viewed from far away
  • MC-302872 Severe color contrast between lava mip levels
  • MC-302887 Spear charging animation in first person isn’t perfectly mirrored between the main hand and off hand
  • MC-302912 Zombie nautiluses suffocate out of water, unlike other undead mobs
  • MC-302915 Mipmapping on cutout textures can cause them to appear larger than they should
  • MC-302963 Killing a player's mounted nautilus will cause that player to briefly glide upward, unaffected by gravity
  • MC-302984 Holding a spear in the off hand and attacking an entity adds the spear's attack damage to the attack
  • MC-303032 Nautiluses can still be controlled normally even when they are babies or untamed
  • MC-303138 Piglins and hoglins can zombify in the nether
  • MC-303150 Can't lay in bed during the day even with "can_sleep" set to "always" and "playerSleepPercentage" set to 101+
  • MC-303157 remove_binomial enchantment effect has a chance of producing out-of-range values
  • MC-303166 /stopwatch create suggests existing stopwatches
  • MC-303181 Spears have an attribute modifier for attack_damage for both hands, even though the charge attack does not use it
  • MC-303201 Zombified piglins attack players in Creative mode
  • MC-303266 Nautiluses and zombie nautiluses can enter boats
  • MC-303381 Game crashes when serializing a world spawn point with yaw or pitch values outside of rotation bounds
  • MC-303382 Player spawn points with rotation values outside of bounds aren't serialized

Development cycle

This build was part of the run-up to 1.21.11. Everything tested here landed in that release.

Minecraft 1.21.11The release this one led to

Browse this version

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Neighbouring versions

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