25w15a — release journal

What 25w15a changed for data packs, measured against 1.21.5, the build before it. Released 2025-04-08; development build — not a release.

⚠ Entries removed

67 registry entries were removed. A pack that names one of them will fail to parse where it does.

Formats

	1.21.5	25w15a
Data pack format	71.0	72.0 moved
Resource pack format	55.0	56.0 moved
Data version	4325	4422

Registries

381 entries added and 67 removed across 22 registries.

Registry	Change	Added	Removed
`advancement`	changed	`adventure/heart_transplanter`, `husbandry/place_dried_ghast_in_water`, `recipes/building_blocks/dried_ghast`, `recipes/building_blocks/dye_black_harness`, `recipes/building_blocks/dye_blue_harness`, `recipes/building_blocks/dye_brown_harness`, `recipes/building_blocks/dye_cyan_harness`, `recipes/building_blocks/dye_gray_harness`, `recipes/building_blocks/dye_green_harness`, `recipes/building_blocks/dye_light_blue_harness`, `recipes/building_blocks/dye_light_gray_harness`, `recipes/building_blocks/dye_lime_harness`, `recipes/building_blocks/dye_magenta_harness`, `recipes/building_blocks/dye_orange_harness`, `recipes/building_blocks/dye_pink_harness`, `recipes/building_blocks/dye_purple_harness`, `recipes/building_blocks/dye_red_harness`, `recipes/building_blocks/dye_white_harness`, `recipes/building_blocks/dye_yellow_harness`, `recipes/transportation/black_harness`, `recipes/transportation/blue_harness`, `recipes/transportation/brown_harness`, `recipes/transportation/cyan_harness`, `recipes/transportation/gray_harness`, `recipes/transportation/green_harness`, `recipes/transportation/light_blue_harness`, `recipes/transportation/light_gray_harness`, `recipes/transportation/lime_harness`, `recipes/transportation/magenta_harness`, `recipes/transportation/orange_harness`, `recipes/transportation/pink_harness`, `recipes/transportation/purple_harness`, `recipes/transportation/red_harness`, `recipes/transportation/white_harness`, `recipes/transportation/yellow_harness`	—
`attribute`	changed	`camera_distance`, `waypoint_receive_range`, `waypoint_transmit_range`	—
`block`	changed	`dried_ghast`	—
`block_definition`	changed	`dried_ghast`	—
`block_type`	changed	`dried_ghast`	`terracotta`
`command_argument_type`	changed	`hex_color`	—
`custom_stat`	changed	`happy_ghast_one_cm`	—
`datapack`	changed	`locator_bar`	—
`entity_type`	changed	`happy_ghast`	—
`equipment`	changed	`black_harness`, `blue_harness`, `brown_harness`, `cyan_harness`, `gray_harness`, `green_harness`, `light_blue_harness`, `light_gray_harness`, `lime_harness`, `magenta_harness`, `orange_harness`, `pink_harness`, `purple_harness`, `red_harness`, `white_harness`, `yellow_harness`	—
`item`	changed	`black_harness`, `blue_harness`, `brown_harness`, `cyan_harness`, `dried_ghast`, `gray_harness`, `green_harness`, `happy_ghast_spawn_egg`, `light_blue_harness`, `light_gray_harness`, `lime_harness`, `magenta_harness`, `orange_harness`, `pink_harness`, `purple_harness`, `red_harness`, `white_harness`, `yellow_harness`	—
`item_definition`	changed	`black_harness`, `blue_harness`, `brown_harness`, `cyan_harness`, `dried_ghast`, `gray_harness`, `green_harness`, `happy_ghast_spawn_egg`, `light_blue_harness`, `light_gray_harness`, `lime_harness`, `magenta_harness`, `orange_harness`, `pink_harness`, `purple_harness`, `red_harness`, `white_harness`, `yellow_harness`	—
`loot_table`	changed	`blocks/dried_ghast`, `entities/happy_ghast`	—
`model`	changed	`block/dried_ghast`, `block/dried_ghast_hydration_0`, `block/dried_ghast_hydration_1`, `block/dried_ghast_hydration_2`, `block/dried_ghast_hydration_3`, `item/black_harness`, `item/blue_harness`, `item/brown_harness`, `item/cyan_harness`, `item/gray_harness`, `item/green_harness`, `item/happy_ghast_spawn_egg`, `item/light_blue_harness`, `item/light_gray_harness`, `item/lime_harness`, `item/magenta_harness`, `item/orange_harness`, `item/pink_harness`, `item/purple_harness`, `item/red_harness`, `item/white_harness`, `item/yellow_harness`	—
`recipe`	changed	`black_harness`, `blue_harness`, `brown_harness`, `cyan_harness`, `dried_ghast`, `dye_black_harness`, `dye_blue_harness`, `dye_brown_harness`, `dye_cyan_harness`, `dye_gray_harness`, `dye_green_harness`, `dye_light_blue_harness`, `dye_light_gray_harness`, `dye_lime_harness`, `dye_magenta_harness`, `dye_orange_harness`, `dye_pink_harness`, `dye_purple_harness`, `dye_red_harness`, `dye_white_harness`, `dye_yellow_harness`, `gray_harness`, `green_harness`, `light_blue_harness`, `light_gray_harness`, `lime_harness`, `magenta_harness`, `orange_harness`, `pink_harness`, `purple_harness`, `red_harness`, `white_harness`, `yellow_harness`	—
`sensor_type`	changed	`happy_ghast_temptations`, `nearest_adult_any_type`	—
`sound`	changed	`block/dried_ghast/ambient1`, `block/dried_ghast/ambient2`, `block/dried_ghast/ambient_water1`, `block/dried_ghast/ambient_water2`, `block/dried_ghast/break`, `block/dried_ghast/hit1`, `block/dried_ghast/hit2`, `block/dried_ghast/hit3`, `block/dried_ghast/placeinwater`, `block/dried_ghast/step/wood1`, `block/dried_ghast/step/wood2`, `block/dried_ghast/step/wood3`, `block/dried_ghast/step/wood4`, `block/dried_ghast/step/wood5`, `block/dried_ghast/step/wood6`, `block/dried_ghast/transition`, `block/dried_ghast/wood1`, `block/dried_ghast/wood2`, `block/dried_ghast/wood3`, `block/dried_ghast/wood4`, `block/dry_grass/wind1`, `block/dry_grass/wind10`, `block/dry_grass/wind11`, `block/dry_grass/wind12`, `block/dry_grass/wind2`, `block/dry_grass/wind3`, `block/dry_grass/wind4`, `block/dry_grass/wind5`, `block/dry_grass/wind6`, `block/dry_grass/wind7`, `block/dry_grass/wind8`, `block/dry_grass/wind9`, `mob/ghastling/death`, `mob/ghastling/ghastling1`, `mob/ghastling/ghastling2`, `mob/ghastling/ghastling3`, `mob/ghastling/ghastling4`, `mob/ghastling/ghastling5`, `mob/ghastling/ghastling6`, `mob/ghastling/ghastling7`, `mob/ghastling/hurt1`, `mob/ghastling/hurt2`, `mob/ghastling/hurt3`, `mob/ghastling/hurt4`, `mob/ghastling/hurt5`, `mob/ghastling/spawn`, `mob/glow_squid/ambient1`, `mob/glow_squid/ambient2`, `mob/glow_squid/ambient3`, `mob/glow_squid/ambient4`, `mob/glow_squid/ambient5`, `mob/glow_squid/death1`, `mob/glow_squid/death2`, `mob/glow_squid/death3`, `mob/glow_squid/hurt1`, `mob/glow_squid/hurt2`, `mob/glow_squid/hurt3`, `mob/glow_squid/hurt4`, `mob/glow_squid/squirt1`, `mob/glow_squid/squirt2` and 69 more	`block/sand/wind1`, `block/sand/wind10`, `block/sand/wind11`, `block/sand/wind12`, `block/sand/wind2`, `block/sand/wind3`, `block/sand/wind4`, `block/sand/wind5`, `block/sand/wind6`, `block/sand/wind7`, `block/sand/wind8`, `block/sand/wind9`, `entity/glow_squid/ambient1`, `entity/glow_squid/ambient2`, `entity/glow_squid/ambient3`, `entity/glow_squid/ambient4`, `entity/glow_squid/ambient5`, `entity/glow_squid/death1`, `entity/glow_squid/death2`, `entity/glow_squid/death3`, `entity/glow_squid/hurt1`, `entity/glow_squid/hurt2`, `entity/glow_squid/hurt3`, `entity/glow_squid/hurt4`, `entity/glow_squid/squirt1`, `entity/glow_squid/squirt2`, `entity/glow_squid/squirt3`, `entity/guardian/ambient1`, `entity/guardian/ambient2`, `entity/guardian/ambient3`, `entity/guardian/ambient4`, `entity/pufferfish/blow_out1`, `entity/pufferfish/blow_out2`, `entity/pufferfish/blow_up1`, `entity/pufferfish/blow_up2`, `entity/pufferfish/death1`, `entity/pufferfish/death2`, `entity/pufferfish/flop1`, `entity/pufferfish/flop2`, `entity/pufferfish/flop3`, `entity/pufferfish/flop4`, `entity/pufferfish/hurt1`, `entity/pufferfish/hurt2`, `entity/pufferfish/sting1`, `entity/pufferfish/sting2`, `entity/rabbit/attack1`, `entity/rabbit/attack2`, `entity/rabbit/attack3`, `entity/rabbit/attack4`, `entity/squid/ambient1`, `entity/squid/ambient2`, `entity/squid/ambient3`, `entity/squid/ambient4`, `entity/squid/ambient5`, `entity/squid/death1`, `entity/squid/death2`, `entity/squid/death3`, `entity/squid/hurt1`, `entity/squid/hurt2`, `entity/squid/hurt3` and 4 more
`sound_event`	changed	`block.dried_ghast.ambient`, `block.dried_ghast.ambient_water`, `block.dried_ghast.break`, `block.dried_ghast.fall`, `block.dried_ghast.hit`, `block.dried_ghast.place`, `block.dried_ghast.place_in_water`, `block.dried_ghast.step`, `block.dried_ghast.transition`, `block.dry_grass.ambient`, `entity.ghastling.ambient`, `entity.ghastling.death`, `entity.ghastling.hurt`, `entity.ghastling.spawn`, `entity.happy_ghast.ambient`, `entity.happy_ghast.death`, `entity.happy_ghast.equip`, `entity.happy_ghast.harness_goggles_down`, `entity.happy_ghast.harness_goggles_up`, `entity.happy_ghast.hurt`, `entity.happy_ghast.riding`, `entity.happy_ghast.unequip`	`block.sand.wind`
`tag/block`	changed	`triggers_ambient_desert_dry_vegetation_block_sounds`, `triggers_ambient_desert_sand_block_sounds`	`plays_ambient_desert_block_sounds`
`tag/entity_type`	changed	`can_equip_harness`, `followable_friendly_mobs`	—
`tag/item`	changed	`happy_ghast_food`, `happy_ghast_tempt_items`, `harnesses`	—
`texture`	changed	`block/dried_ghast_hydration_0_bottom`, `block/dried_ghast_hydration_0_east`, `block/dried_ghast_hydration_0_north`, `block/dried_ghast_hydration_0_south`, `block/dried_ghast_hydration_0_tentacles`, `block/dried_ghast_hydration_0_top`, `block/dried_ghast_hydration_0_west`, `block/dried_ghast_hydration_1_bottom`, `block/dried_ghast_hydration_1_east`, `block/dried_ghast_hydration_1_north`, `block/dried_ghast_hydration_1_south`, `block/dried_ghast_hydration_1_tentacles`, `block/dried_ghast_hydration_1_top`, `block/dried_ghast_hydration_1_west`, `block/dried_ghast_hydration_2_bottom`, `block/dried_ghast_hydration_2_east`, `block/dried_ghast_hydration_2_north`, `block/dried_ghast_hydration_2_south`, `block/dried_ghast_hydration_2_tentacles`, `block/dried_ghast_hydration_2_top`, `block/dried_ghast_hydration_2_west`, `block/dried_ghast_hydration_3_bottom`, `block/dried_ghast_hydration_3_east`, `block/dried_ghast_hydration_3_north`, `block/dried_ghast_hydration_3_south`, `block/dried_ghast_hydration_3_tentacles`, `block/dried_ghast_hydration_3_top`, `block/dried_ghast_hydration_3_west`, `entity/equipment/happy_ghast_body/black_harness`, `entity/equipment/happy_ghast_body/blue_harness`, `entity/equipment/happy_ghast_body/brown_harness`, `entity/equipment/happy_ghast_body/cyan_harness`, `entity/equipment/happy_ghast_body/gray_harness`, `entity/equipment/happy_ghast_body/green_harness`, `entity/equipment/happy_ghast_body/light_blue_harness`, `entity/equipment/happy_ghast_body/light_gray_harness`, `entity/equipment/happy_ghast_body/lime_harness`, `entity/equipment/happy_ghast_body/magenta_harness`, `entity/equipment/happy_ghast_body/orange_harness`, `entity/equipment/happy_ghast_body/pink_harness`, `entity/equipment/happy_ghast_body/purple_harness`, `entity/equipment/happy_ghast_body/red_harness`, `entity/equipment/happy_ghast_body/white_harness`, `entity/equipment/happy_ghast_body/yellow_harness`, `entity/ghast/happy_ghast`, `entity/ghast/happy_ghast_baby`, `gui/sprites/hud/locator_bar_arrow_down`, `gui/sprites/hud/locator_bar_arrow_up`, `gui/sprites/hud/locator_bar_background`, `gui/sprites/hud/locator_bar_player`, `item/black_harness`, `item/blue_harness`, `item/brown_harness`, `item/cyan_harness`, `item/gray_harness`, `item/green_harness`, `item/happy_ghast_spawn_egg`, `item/light_blue_harness`, `item/light_gray_harness`, `item/lime_harness` and 7 more	—

The official notes

Read the 25w15a article on minecraft.net.

That article's technical changes are grouped under these headings — open it for the detail:

Data Pack Version 72
Commands
Attributes
Data Components
Entity Data
Tags
Resource Pack Version 56
Sound Events
Sounds
Equipment Assets

Minecraft Wiki page for 25w15a.

In the journal

← 1.21.5 · All builds · 25w16a →

Sources

misode/mcmeta — 25w15a summary — formats and registries, generated from the game’s own data.
minecraft.net — 25w15a — section names only.