Java Edition 25w05a

25w05a is the fourth snapshot for Java Edition 1.21.5, released on January 29, 2025,^[1] which adds the bush, firefly bush, new cow variants and fixes various bugs.

Bush

• Generates in the following biomes:
  • Plains
  • Windswept Hills
  • Windswept Gravelly Hills
  • Windswept Forest
  • River
  • Frozen River
  • Forest
  • Birch Forest
  • Old Growth Birch Forest
• They are tinted by the grass color of the biome they are placed in.
• Can be used in the composter, with a 30% chance to add a layer.
• Using bone meal on a bush will generate a neighboring bush next to it if possible.
• Can be instantly broken without any particular tool.

Firefly bush

• Generates in swamps and near rivers.
• When it's dark, glowing firefly particles appear around the firefly bush, up to 5 blocks away.
• Can be used in the Composter, with a 30% chance to add a layer.
• Using bone meal on a firefly bush will spawn another firefly bush item.
• Emits a light level of 2.
• Can be instantly broken without any particular tool.

Cow

• Nose now extrudes from model.
• New cow variants have been added.
  • Temperate Cow: The pre-existing cow variant.
    • Spawns by default where the cold and warm cow variants do not spawn.
  • Cold Cow: A variant that spawns in the following biomes:
    • Old Growth Pine Taiga
    • Old Growth Spruce Taiga
    • Taiga
    • Snowy Taiga
    • Windswept Hills
    • Windswept Gravelly Hills
    • Windswept Forest
  • Warm Cow: A variant that spawns in the following biomes:
    • Savanna
    • Savanna Plateau
    • Windswept Savanna
    • Jungle
    • Sparse Jungle
    • Bamboo Jungle
    • Eroded Badlands
    • Wooded Badlands
    • Badlands
• When bred by a player, a baby cow variant will not be chosen by the current biome, but instead randomly selected from one of the parents' variants.

Sound

• Dead bushes have a chance of playing ambient sounds when placed on top of two blocks that are any color of terracotta, sand or red sand blocks in any biome.

• Sand, red sand and terracotta of any color have a chance of playing ambient sounds when surrounded by any one of them on at least 3 sides 8 blocks away.
  • block.sand.idle can be played in any biome.
  • block.sand.wind only plays when in desert or badlands biomes.

Tag

• Added the #plays_ambient_desert_block_sounds block tag.
  • Contains blocks that will play ambient desert block sounds.

Beacon

• Beacons and their beams now render beyond 16 chunks up to the client render distance.
  • To keep it easily visible at large distances, the beam is rendered thicker the further away it is from the player.
  • The beam now renders up to 2048 blocks high, up from 1024.

Powder snow

• Landing on powder snow with leather boots equipped after falling further than 2.5 blocks will now make entities fall through the snow.
  • Jumping or falling less than 2.5 blocks allows the entity to land on top of the snow like before.

Pig

• Warm pigs now properly spawn in windswept savannas.

/bossbar, /scoreboard and /team

• Text component arguments are now resolved before use in context of entity held in @s.

Data component format

• blocks_attacks
  • Added the bypassed_by field - hashtagged damage type tag (optional)
    • If specified, blocking is bypassed by these damage types.
  • The objects within the damage_reductions list now have a new field:
    • horizontal_blocking_angle- angle in degrees as a positive float
    • Default: 90
      • The maximum angle between the user's facing and the incoming attack for the block to be effective.

Data pack

• The pack format version is now 65.

Entity variant components

• Cow variants can be data-driven adding entries to data/<namespace>/cow_variant/<id>.json.
  • This feature is experimental.
  • Fields in file:
    • model - one of: normal, cold, warm.
    • asset_id - namespaced id for this variant asset, resolves to assets/<namespace>/textures/<path>.png.
    • spawn_conditions - field described in uniform variant selection above.

Map item format

• Filled map data format was changed.

Raids.dat format

• Renamed all data file fields to lowercase underscore format.

Resource pack

• The pack format version is now 50.
• Added new textures for cow variants.
  • cold_cow
  • warm_cow
• Changed the size of temperate_cow texture.
• Changed the size of red_mooshroom and brown_mooshroom textures.
• The temperate Cow has an updated model and texture.
  • Cow models now have a snout.
  • Cow models now have their legs mirrored.
• The texture cow has been renamed to temperate_cow.
• The texture pig has been renamed to temperate_pig.

Tag

• Renamed the #bypasses_blocking damage type tag back to #bypasses_shield.
• Replaced windswept_hills with windswept_savanna in the #spawns_warm_variant_farm_animals biome tag.

22 issues fixed

From released versions before 1.21

• MC-108495 – Non-LivingBase entities can be on a team (and show color) but can't be targeted using team=.
• MC-165711 – Eye of ender hitbox always lags behind the animation.

From 1.21.2

• MC-279390 – Baby zombified piglin helmet clipping.

From 1.21.4

• MC-279857 – Piglins summoned by the /summon command do not pick up gold items.

From the 1.21.5 development versions

• MC-279257 – crafting_transmute recipes don't give output if the resulting item has the same ID as the input item.
• MC-279280 – windswept_hills is in both the warm and cold variant farm animal biome tags.
• MC-279315 – Warm pigs do not spawn in windswept savannas.
• MC-279353 – The minecraft:fall_damage_multiplier attribute doesn't function when riding specific rideable mobs.
• MC-279497 – Structure preview outline breaks for max integer-length sizes.
• MC-279531 – GameTest entrypoint doesn't report failures to spawn the structure.
• MC-279534 – Display entities use interpolation duration value for teleport duration.
• MC-279543 – Neutral Mobs don't attack the player back when attacked under certain conditions.
• MC-279556 – The "/execute on attacker" command does not target an entity previously targeted by the "/data" command.
• MC-279577 – Test blocks are restricted to one within a block-based structure.

From the previous development version

• MC-279684 – Shield blocking animation no longer plays when blocking an attack.
• MC-279685 – Shields no longer consume durability when blocking attacks.
• MC-279688 – Sprinting is canceled upon flying with elytra.
• MC-279692 – Instrument component crashes the game.
• MC-279693 – Summoned lingering potions render as splash potions.
• MC-279697 – Llamas show a non-interactive saddle slot.
• MC-279698 – provides_banner_pattern component does not use hash prefix.
• MC-279760 – Typing an inline definition in the provides_trim_material component crashes the game.