Java Edition 25w43a

Minecraft 25w43a
Edition	Java Edition
Release date	October 21, 2025
Type	Snapshot
Snapshot for	1.21.11
Downloads	Client (.json); Server
Obfuscation maps	Client; Server
Protocol version	dec: 1073742101; hex: 40000115
Data version	4659
Resource pack format	71.0
Data pack format	91.0
Minimum Java version	Java SE 21

25w43a is the third snapshot for Java Edition 1.21.11,^{[unofficial name]} released on October 21, 2025, which makes some tweaks to spear mechanics.^[1]

Additions

General

Loot functions

minecraft:discard
- Replaces any item stack with empty one.
- No fields.

Changes

Items

Spear

Spears now deal more damage through charge attacks dealt by players, but also mobs. This is because the spear's charge attacks now deal the attack damage attribute's base value on top of their formula.
The spear model is now slightly larger.
Spears now provide visual feedback when they hit a target in the charge attack.

Mobs

Nautilus

Can no longer enter boats.

Zombie nautilus

Can no longer enter boats.
No longer suffocates outside water.

Command format

/worldborder

The time argument is now given in ticks instead of seconds.

Gameplay

Enchantments

Using Lunge no longer causes durability damage to the spear.
Using Lunge now consumes hunger points by exhausting the player, similar to sprinting or jumping.
- Level I consumes 3 (), level II consumes 4 (), and level III consumes 5 ().
- Lunge can only be used if the player has at least 6 () hunger points in their hunger bar.

World border

World border interpolation is now dependent on game ticks instead of real time.
- This means the world border will no longer move when the game is paused.
- It will also respect any changes made by the /tick command.

General

Data pack

The pack format version is now 91.0.

Enchantment definition

Entity Effects
- minecraft:apply_exhaustion: applies exhaustion to the targeted entity.
  - amount - Level-Based Value indicating the amount of exhaustion to apply.
  - Effective only on players.

Loot functions

minecraft:filtered
- The field modifier has been replaced with two fields:
  - on_pass - function or a list of functions to run when item_filter predicate passes.
  - on_fail - function or a list of functions to run when item_filter predicate fails.

LWJGL

Updated the LWJGL library to version 3.3.6.

Resource pack

The version is now 71.0.

Sounds

Added new sound event for the Nautilus:
- item.underwater_saddle.equip

Tags

Added nautilus, and zombie_nautilus to #cannot_be_pushed_onto_boats entity tag.

Textures

The darkened_cutout_mipmap field of the texture section of *.mcmeta files has been replaced by a new field mipmap_strategy with the following supported values:
- mean averages both color and alpha between groups of four pixels for the current mipmap level to generate the next mipmap level pixel. This was and stays the default strategy for most solid or translucent full block textures.
- dark_cutout is similar to mean, but blends colors in a way that makes the pixels bordering cutout pixels darker. This was and stays the strategy for leaves and mangrove roots. It simulates dark interior of the blocks.
- cutout is a new strategy that always generates a mipmap based on the original texture instead of the previous mipmap. Used for most cutout blocks that became mipmapped in this version.
- strict_cutout is a modification of cutout that uses stricter alpha cutoff value leading to the textures using this value disappearing at higher mipmap levels. Is used for flowers and similar blocks to avoid artifacts.
- auto is the default value and will make the game to pick mean for textures that do not contain fully transparent pixels and cutout for those that do.
All mipmap levels are once again animated for block animated textures.
Beacon and redstone dust now support translucent textures.

Fixes

28 issues fixed

From released versions before 1.21

MC-53491 – The world border can change in size when the game is paused.

From 1.21.10

MC-302695 – Can use the game mode switcher while the game is paused, and doing so unpauses the game.
MC-302854 – Glass is less transparent when viewed from far away.
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.

From the 1.21.11 development versions

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-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-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.

From the previous development version

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.

Videos

Videos made by Slicedlime:

References

↑ "Minecraft Snapshot 25w43a" – Minecraft.net, October 21, 2025.

Navigation

[1] "Minecraft Snapshot 25w43a" – Minecraft.net, October 21, 2025.

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