Java Edition 25w43a

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 "title": "Minecraft 25w43a",
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 "25w43a.jpg",
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 "label": "Release date"
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 "field": "(link to Snapshot article, displayed as Snapshot)",
 "label": "(link to Version types article, displayed as Type)"
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 "field": "(link to Java Edition 1.21.11 article, displayed as 1.21.11)",
 "label": "Snapshot for"
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 "field": " <span style=\"font-size:smaller\"><abbr title=\"decimal\">dec</abbr>: </span>1073742099<br /> <span style=\"font-size:smaller\"><abbr title=\"hexadecimal\">hex</abbr>: </span>40000113",
 "label": "(link to Protocol version article, displayed as Protocol version)"
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 "label": "<span style=\"white-space: normal;\">(link to Pack format#List of pack formats article, displayed as Resource pack format)</span>"
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 "field": "<span class=\"plainlinks\">[https://en.wikipedia.org/wiki/Java_version_history#Java_SE_21_.28LTS.29 Java SE 21]</span>",
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 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Java Edition 1.21.10|<span style=\"margin-right:-0.35em\">◄</span>◄  1.21.10]]</td>\n<td style=\"padding: 0.4em\">'''[[Java Edition 1.21.11|1.21.11]]'''</td>\n<td style=\"padding: 0.4em\" >[[Java Edition 26.1| 26.1 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Java Edition 25w42a|◄  25w42a]]\n</td>\n<td style=\"padding: 0.4em\">''' 25w43a'''</td>\n<td style=\"padding: 0.4em\">\n[[Java Edition 25w44a| 25w44a ►]]\n</td>\n</tr>\n</table>"
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25w43a is the third snapshot for Java Edition 1.21.11, released on October 21, 2025, which makes some tweaks to spear mechanics.^[1]

Loot functions

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

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.

Nautilus

• Can no longer enter boats.

Zombie nautilus

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

/worldborder

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

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.

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.^{[citation needed]}

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.

27 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 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-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.