Java Edition 25w15a

Minecraft 25w15a

Edition	Java Edition
Release date	April 8, 2025
Type	Snapshot
Snapshot for	1.21.6
Downloads	Client (.json) Server
Obfuscation maps	Client Server
Protocol version	dec: 1073742069  hex: 400000F5
Data version	4422
Resource pack format	56
Data pack format	72
Minimum Java version	Java SE 21
◄◄  1.21.5 1.21.6 25w15a 25w16a ►

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25w15a is the first snapshot for Java Edition 1.21.6, released on April 8, 2025.

Additions

Blocks

Dried Ghast

• Found in Nether fossils in soul sand valleys.
• Can be crafted with 1 bone block and 8 ghast tears.

Ingredients	[hide]Crafting recipe
Ghast Tear + Bone Block

• Can be mined instantly without using a tool.
• When waterlogged, it undergoes 3 states over about 20 minutes until it spawns a ghastling mob.
• Makes sounds and shows particles depending on state.
• If mined during the waterlogging, it will revert to its "dry" state regardless of what state it has reached during waterlogging.
  • Will revert states back to its initial "dry" state when it is taken away from being waterlogged, using the same time scale.
• Can be moved by pistons.

Items

Happy Ghast Spawn Egg

• Used to spawn a happy ghast.

Harness

• Crafted out of 3 leather, 2 glass and 1 wool, the harness will have the same color as the wool used when crafting.

Ingredients	[hide]Crafting recipe
Leather + Glass + Matching Wool

• Used to fly on happy ghasts.
  • Can only be equipped on a happy ghast.
  • Allows up to 4 players to mount the happy ghast.
• Have 16 variants, matching the color of wool used to craft the harness.
  • Can be re-dyed.

Ingredients	[hide]Crafting recipe
Any Harness + Matching Dye

• Can be removed from the happy ghast using shears, but only when no players are mounted.

Mobs

Ghastling

• Spawned after a dried ghast gets hydrated in water.
  • Can also be summoned using the command: /summon happy_ghast ~ ~ ~ {Age:-24000}.
• Has 20HP × 10 health points.
• Will grow up into a Happy Ghast after about 20 minutes (or faster if fed Snowballs).
  • Can be tempted and fed using snowballs to speed up their growth.
• After spawning, a ghastling will try and follow:
  • Players within a 16-block radius.
  • Or an adult, non-aquatic passive mob (and some neutral mobs) within a 16-block radius.
• If no player or suitable mob is close around the ghastling will idle around within 32 blocks from its home position (where it spawned or last was interacted with).
  • It will reset its home position if it is moved more than 16 blocks away from the border of its home area.

Happy Ghast

• Spawned after a ghastling gets fed enough snowballs.
• Has 20HP × 10 health points.
• A rideable entity, which can be equipped with a harness and ridden by up to four players.
  • When a player mounts, the goggles on the happy ghast go down to cover its eyes, indicating that it now can be controlled.
  • Players mounted after the first player piloting the happy ghast are placed in slots on each side of it, starting clockwise from the first player.
  • Pressing crouch button dismounts the player on top.
  • 3rd person camera is moved back when player is mounted.
  • If players dismount midair, the happy ghast will descend towards the ground before it resumes roaming.
• The first player that mounts the Happy Ghast will control it, sitting in front of the Happy Ghast, just above its face.
  • Pressing the forward key will make the Happy Ghast fly in the direction the player is looking.
  • Pressing the back key will make the Happy Ghast fly in the opposite direction the player is looking.
  • Pressing the left and right keys will strafe the Happy Ghast in the respective direction.
  • Pressing the jump key will make the Happy Ghast fly directly up.
• Can be stood on, similar to a shulker.
  • If the happy ghast detects players on top of it, it then ceases all movement and aligns to the closest cardinal horizontal direction.
    • This happens regardless of it having a harness equipped or not.
• When not being ridden, can be tempted by players holding snowballs and harness.
  • However, they can not be bred.
  • Harness tempting only works if the Happy Ghast is unharnessed.
• Has no panic behavior when taking damage.
• Slowly regenerates health, with regeneration speeding up during rain, snow or when flying at the same height as clouds are rendered.
• Can be burned by fire and lava, as opposed to regular ghasts.
• Cannot enter boats, but can enter minecarts.
• When there are no players mounted or walking on the happy ghast, the goggles go up and the happy ghast starts to roam around the home position.
• Idles around within 64 blocks from its home position in the similar way as the ghastling.
  • If wearing a harness, the happy ghast idles closer to the home position (within 32 blocks).
  • The Happy Ghast will try to stay close to blocks when roaming on its own.
• Does not drop anything other than experience.

Command format

/version

• No arguments.
• Prints current version information on server side.
• Available in singleplayer or for server operators.

Gameplay

Advancements

• Added 2 new advancements:
  • Stay Hydrated!
    • Place a Dried Ghast block into water
  • Heart Transplanter
    • Place a Creaking Heart with the correct alignment between two Pale Oak Log blocks

General

Attributes

• Added camera_distance
  • Default value: 4.0
  • Modifies the distance at which the camera is placed away from the player or spectated entity when in a third-person view.
  • If the entity being ridden has a larger camera_distance attribute, that distance will be used.
  • This distance is multiplied by the scale attribute to get a final target camera distance.

Controls

• Added F3 + V.
  • Prints client-side version information.

Statistics

• Added minecraft:happy_ghast_one_cm: Distance by Happy Ghast.

Tags

• Added the #triggers_ambient_desert_sand_block_sounds block tag.
  • Contains blocks that can trigger ambient desert sand sounds to play from blocks above.
• Added the #happy_ghast_food item tag.
  • Contains items that can be used to feed happy ghasts.
• Added the #happy_ghast_tempt_items item tag.
  • Contains items that can be used to tempt happy ghasts.
• Added the #harnesses item tag.
  • Contains all types of harnesses.
• Added the #can_equip_harness entity tag.
  • Contains entities that can equip the harness items
• Added #followable_friendly_mobs entity tag.
  • Contains non-baby entities that will be followed by ghastlings.

Changes

Blocks

Firefly bushes

• Now produce larger, and more constant, amounts of particles.

Items

Spawn Eggs

• Blaze and breeze egg size changed from "large" to "medium".

Mobs

Ghast

• Updated its texture to be higher resolution, matching the new happy ghast.

Wolves, Sheeps and Pigs

• Now have their legs mirrored.

Command format

/datapack

• Added /datapack create
  • Creates new empty directory data pack for current world.
  • Supported pack version is always equal to one supported by game.
  • Available only to server owners.
  • Syntax: /datapack create <id> <name>
    • id - new pack name, must be a valid directory name.
    • name - text component to be placed in description in pack.mcmeta.

Gameplay

Sounds

• Rules for when ambient desert blocks sounds play have been tweaked.
  • Ambient sand sounds no longer require sky access to play.
  • Ambient sand sounds now have a slightly decreased chance to play.
  • Terracotta blocks no longer trigger ambient sand sounds.
  • Sand blocks no longer trigger ambient wind sounds.
  • Terracotta blocks no longer trigger ambient wind sounds.
  • Short Dry Grass and Tall Dry Grass can now trigger ambient wind sounds when above 2 Sand, Red Sand or Terracotta blocks.
  • Dead Bush ambient sounds now have a slightly increased chance of playing.

Spectator mode

• Spectators will now teleport together with, but stop spectating, entities that move to other dimensions.

General

Data component format

• attribute_modifiers
  • Added optional display field to attributes_modifiers entries.
    • There are 3 display types:
      • default - Current behavior of showing the calculated attribute modifier values on the tooltip.
      • hidden - Does not show the attribute modifier entry.
      • override - Replaces the shown attribute modifier text.
        • Contains a single field value for the text contents to show for this attribute modifer entry.

Data pack

• The pack format version is now 72.
• Dimension Type definitions have a new optional field, cloud_height that indicates what Y-level the clouds start in the dimension.

Entity data

• area_effect_cloud
  • The Particle field has been renamed to custom_particle, and now always functions as an exact override for the default colored entity_effect particle.
    • The field will not be written if no override is specified.
    • The color will no longer be inherited from the potion contents when specifying the entity_effect or tinted_leaves particle types.

Equipment Assets

• Added new happy_ghast_body layer type, rendering in the body slot of the happy ghast.

Resource pack

• The pack format version is now 56.
• The game will now consistently respect blur texture parameter in .png.mcmeta files.

Sounds

• Changed location on the sounds for glow squid, squid, guardian, horse, rabbit and pufferfish from the entity folder to the mob folder.

Sound events

• block.sand.wind has been renamed to block.dry_grass.ambient.

Tags

• Added happy_ghast to #dismounts_underwater, and #fall_damage_immune entity tags.
• The #plays_ambient_desert_block_sounds block tag has been renamed to #triggers_ambient_desert_dry_vegetation_block_sounds.

Third-person view

• Increased the third-person camera distance when spectating or riding Ghasts, Ender Dragons, and Giants.

Experimental

Additions

Command format

/waypoint

• A new command for querying and modifying waypoints.
• Syntax:
  • /waypoint list
  • /waypoint modify <entity-selector> color <color>
  • /waypoint modify <entity-selector> color hex <hex-color>
  • /waypoint modify <entity-selector> color reset
  • /waypoint modify <entity-selector> fade <fade_start> <alpha_start> <fade_end> <alpha_end>
  • /waypoint modify <entity-selector> fade reset
• Parameters:
  • entity-selector: For selecting entities that are transmitting as waypoints (see waypoint_transmit_range attribute).
  • color: Overrides the locator bar icon color for this waypoint.
  • hex <hex-color> arguments are in web format (RRGGBB).
    • Red is either hex F00 or hex FF0000.
    • Cornflower blue is hex 6495ED.
  • fade: Set the fade out effect for waypoints.
    • The arguments <fade_start> <alpha_start> <fade_end> <alpha_end> handle the starting/ending fade distance & alpha opacity.
      • *_start is the nearby values (closest to the player).
      • *_end is the far values (furthest from the player).
    • reset will restore the default behavior of distant locator bar icons fading out to 0.2 alpha.

Gameplay

Locator bar

• A UI element on the player HUD that displays the direction of other players in the world.
• By default, all players transmit a waypoint from themselves, and all players receive all waypoints; allowing players to locate other players in multiplayer.
• The locator bar will display colored indicators when the camera is facing within 120 degrees towards a waypoint. If a waypoint is above/below the camera's viewport (the screen) an up/down arrow will display.
• Any waypoint that is determined to be a player or mob that belongs to a Team then the color indicator will match the team color.
• Can be toggled with gamerule useLocatorBar.
• Crouching will hide the player, preventing them from appearing on the Locator Bar of other players.
• Spectators are only visible to other spectators on the Locator Bar.

General

Attribute

• Added waypoint_transmit_range and waypoint_receive_range.
  • Default: 0.0, Minimum: 0.0, Maximum: 60000000.0.
  • Players have a default transmission and receive range of 60,000,000.
  • Mobs with a transmission range above zero will send waypoint packets to nearby receivers.
  • Similarly, receivers only receive with a range above zero, and cannot receive waypoints outside of this range.

Game rule

• Added the useLocatorBar game rule.
  • Is enabled by default for servers running the Locator Bar experiment.
  • Disabling the game rule will remove all existing waypoints from all players.

Changes

Blocks

Carved Pumpkin and Heads

• Will hide players from the locator bar when worn in the head slot.

Items

Potion of Invisibility

• Will hide players from the locator bar.

Fixes

20 issues fixed

From released versions before 1.21

• MC-147260 – Map icons are not displayed in the cartography table.
• MC-191306 – Sounds played using /playsound are played in all dimensions.
• MC-266318 – Trapdoors and doors have inconsistent subtitles for being opened and closed.

From 1.21.1

• MC-276264 – Advancement screen shadow renders below item icons.

From 1.21.2

• MC-275374 – Drowneds with CanBreakDoors:1b don't break doors.
• MC-277992 – 1 color in the pale chest boat item is incorrect.
• MC-278466 – Bundle experiment data pack related strings are not in deprecated.json.

From 1.21.4

• MC-278873 – The data fixer regenerates chunks containing items obtained from flower pots using Ctrl + Pick Block before version 1.13, or it crashes the game if the item is in the player's inventory.

From 1.21.5

• MC-280047 – Temperate cows use their 1.14 texture with the Programmer Art resource pack enabled.
• MC-280266 – Firefly bushes don't produce as many, or as constant, amounts of particles as on Bedrock Edition.
• MC-280268 – Blazes and breezes use "large" spawn eggs despite mobs of a similar size using "medium".
• MC-280471 – The Particle.color field in area effect clouds is read-only.
• MC-293619 – The chicken spawn egg texture in Programmer Art is missing pixels that match the inventory slot background color.
• MC-295681 – Leaf litter can generate inside of woodland mansions.
• MC-295850 – Done and Cancel buttons on the world creation Edit Game Rules screen do the same thing.
• MC-295866 – The /setblock and /fill commands no longer update redstone power in some situations.
• MC-295867 – Structures from previous versions fail with DataFixerUpper.
• MC-296035 – Two pixels from "mooshroom_spawn_egg" are the same as "cow_spawn_egg".
• MC-296624 – Old Brown Mooshroom texture is missing from Programmer Art.
• MC-297537 – Extra "entity.wolf_whine.whine" sound event exists in sounds.json.

Videos

Videos made by Slicedlime: