Java Edition 1.21.6

1.21.6, the first release of Chase the Skies, is an upcoming game drop that is scheduled to release on June 17, 2025. The update was originally announced at Minecraft Live 2025 on March 22, 2025.^[2]^[3]^[4]^[5]

Additions[]

Blocks[]

Dried Ghast

Can be found in the Nether in Nether Fossil structures
Is crafted with a Soul Sand and 8 Ghast Tears:

Ingredients	Crafting recipe
Ghast Tear + Soul Sand

When waterlogged it undergoes 3 state changes over about 20 minutes until it spawns a Ghastling mob
Makes sounds and shows particles depending on the state
- Emits a vibration frequency of 11 when its block state changes
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
Piglins can now give Dried Ghast Blocks when bartered with

Items[]

Harness

Harness is a new item that can be equipped on a Happy Ghast to allow players to ride it
It is 16 new items, one for each color
Crafted from 3 Leather, 2 Glass blocks and 1 Wool, the Harness will have the same color as the Wool block used when crafting:

Ingredients	Crafting recipe
Leather + Glass + White Wool

Can be re-dyed
Can only be equipped on a Happy Ghast
Allows up to 4 players to mount the Happy Ghast
Can be removed from the Happy Ghast using Shears but only when no players are mounted

Music Disc

Add new music disc "Tears" by Amos Roddy
- Added the following new music tracks by Amos Roddy:
  - Below and Above
  - Broken Clocks
  - Fireflies
  - Lilypad
  - O's Piano
  - Tears
- These new tracks will play in a variety of biomes in both survival and creative, as well as in the main menu
- The Ghast now drops the "Tears" Music Disc when killed by a Fireball deflected by a Player

Mobs[]

Happy Ghast

The adult Happy Ghast is a new flying mount that can carry up to four players
Grows up from a Ghastling after about 20 minutes (or faster if the Ghastling is fed Snowballs)
Can be equipped with a Harness and then be mounted by up to 4 players
Tempted by Snowballs and Harness
- Harness tempting only works if the Happy Ghast is unharnessed
Has no panic behavior when taking damage
Cannot be bred
Slowly regenerates health, with regeneration speeding up during rain, snow or when flying at the same height as clouds are rendered
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
- Pressing the sneak key will make the player dismount the Happy Ghast
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 of the Happy Ghast
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
3rd person camera is moved back when player is mounted on the Happy Ghast
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
If players dismount midair, the Happy Ghast will descend towards the ground before it resumes roaming
Cannot enter boats
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

Ghastling

A young version of the Happy Ghast mob.
Spawns from a Dried Ghast block that has continuously been waterlogged for about 20 minutes.
After spawning, the 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.
Can be tempted and fed using Snowballs.
Will grow up into a Happy Ghast after about 20 minutes (or faster if fed Snowballs).

Locator Bar[]

The Locator Bar works by a server-controlled Waypoint system. Waypoints are received by Players, and connections between Waypoints and Players are managed by the multiplayer server.

The Locator Bar is a new default UI element for players that displays the direction of other players in the world in multiplayer.
- If there are no other players in the world the experience bar will display as normal, otherwise if another player is in the world (and that player is not hiding) then the experience bar will appear when experience is gained, otherwise the Locator Bar will display in the same area.
Multiplayer servers can toggle the Locator Bar with the locatorBar gamerule
- This allows servers to manage Waypoints and their connections with Players
- By default, all Players transmit a Waypoint from themselves, and all Players receive all Waypoints; allowing players to locate other players in multiplayer
  - Individual Players can have their transmission and receive ranges controlled by the waypoint_transmit_range and waypoint_receive_range attributes
Facing other players within a 120 degrees range will display those players as colored indicators on the Locator Bar
Other players that are above/below the screen will also display an up/down arrow with their indicator
The indicator will change to different sized icons depending on how far away the other Player is
Colored indicators are randomized for each player
Servers can modify the colors of indicators with the /waypoint command
- eg: /waypoint modify @s color red to set an indicator to red
Players can hide by crouching, wearing a mob head or a Carved Pumpkin, or using a Potion of Invisibility
Players in Spectator Mode are not visible on the Locator Bar
- However, Spectating player are visible to each other
Players on a team will override their default indicator color with their team color
Player Changes
- 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
Item Changes
- The following items will hide players when worn in the head slot:
Potion Changes
- Using a Potion of Invisibility will also hide players from the Locator Bar

Advancements[]

Stay Hydrated!

Husbandry Advancement when a Dried Ghast Block is placed into Water

Heart Transplanter

Adventure Advancement that is unlocked when a player places a Creaking Heart with the correct alignment between two Pale Oak Log blocks

Changes[]

Clouds now exist all the way to the horizon
Fog was tweaked for improved atmospheric perspective
Fog is now applied to 3d hud elements such as first person player hands and items in hands
It now becomes foggier when it rains
The test framework will no longer try to restart running tests after a server restart
Updated the main screen panorama
Updated the pattern of clouds in the sky, to look less scattered.

Items[]

Elytra

While gliding, using a firework will only be used as a boost even if placed on a block

Lead

The slimeball in the recipe has been replaced with a string.

Ingredients	Crafting recipe
String	2

Leashes are now rendered twice as thick, to match bedrock
Leads can now be used to leash two mobs together
- Sneak-interact on any mob while holding a bunch of leashed mobs will leash these mobs to the interacted entity
- You now cannot leash anything to itself
If the re-leashing an entity would result in immediate leash snapping due to distance, the re-leashing would not happen
Leads can be snipped from an entity when interacting them with Shears
- This applies to its own leash connection as well as all entities attached to it
- Dispensers can now snip leads from entities in front of them when they are equipped with Shears
Improved leash mechanics, with reworked leash physics, allowing for more stable leash connection, especially when leashed entities are not on ground
- When dragged on the lead, leashed objects will now orient themselves towards the leasher
- Using a firework rocket when flying with leashed entities will now break the leash connections
When leashing an already leashed mob, the current lead will now snap and a player will re-leash the object to themselves
- You cannot steal leashed entities from other players
Interactions with a Leash Knot and Fence Blocks have changed:
- When interacting with a Leash Knot or a Fence Block, if there are any player-leashed entities in range of the leash knot, they will be re-leashed to the Leash Knot or a Fence Block
- In case of attaching of mobs fails due to distance or there is nothing to attach, the player will now transfer all fence leashed entities to itself
- If there is nothing left attached to the Leash Knot, it disappears
- Sneak-interact can only result in attaching of the player mobs to the fence
- Interacting with Shears or punching the Leash Knot will result in all current connections broken
Boats and large mobs that can be leashed, but cannot fit in the boat (Horses, Donkey, Mule, Camel and Sniffer) can now be leashed in a special 4-leash configuration to the Happy Ghast
- Happy Ghast will also present a custom layer when its leashing something using a quad connection
- Leashed in quad connection are now rendered without slack
Leash snapping distance has been changed from 10 to 12 blocks
- The distance between centers of entities bounding boxes, rather than their feet is used to determine the distance between two leashed entities
- Happy Ghast leash is now longer - with free roaming distance of 10 blocks and leash snapping at 16 blocks

Saddles

Saddles can now be crafted with 3 Leather and 1 Iron Ingot
Recipe unlocks when a player picks up their first Leather

Ingredients	Crafting recipe
Leather + Iron Ingot

Some loot tables have had saddles removed from them and replaced with 1-5 Leather:
- Monster Room chests
- Ancient City chests
- Desert Pyramid chests
- Jungle Pyramid chests
- Stronghold altar chests

Shears

Shears can be used to remove Saddles, Horse Armor, Harnesses and Carpets from the mobs they are equipped on.
- Unless the mob has a rider
- Unless the player is crouching
- Saddles cannot be removed from Ravagers using Shears
- Dispensers with Shears cannot remove Saddles, Horse Armor, Harnesses or Carpets equipped on mobs
- Shearing Saddles, Horse Armor, and Carpets emits a vibration frequency of 6, along with the Unequip frequency of 4

Splash Potions

Splash Potions distance to affected entities now depends on the closest distance between the entity hitbox and the splash potion hitbox where it landed
- This means that if an entity is hit directly by the splash potion, it will receive the full effect of the potion
- If the entities are grouped together, they will receive the same effect strength

Mobs[]

The old 16x pixel textures of the Ghast is now changed to 32x pixel textures, to look more similar to its passive counterpart.
Increased the third-person camera distance when spectating or riding Ghasts, Ender Dragons, and Giants
Wolves, Sheep and Pigs now have their legs mirrored
Spectators will now teleport together with, but stop spectating, entities that move to other dimensions
Horses, Donkeys, and Mules can now be fed carrots to heal, grow, and improve their temper

Projectiles[]

Projectiles now have a target tolerance margin that changes over time
- Previously, all projectiles had a fixed 0.3 blocks target tolerance margin
- Now, all projectiles start with no margin for the first two ticks of their flight
- After that, the target margin will expand by 0.05 blocks per tick until it reaches the previous 0.3 blocks margin
- This allows for better precision close to the shooting player or entity, while still allowing for some collision leeway when the projectile is further away

Realms[]

Changed the layout of the Realms configuration screen to use tabs
A Worlds tab containing changes to any of the world slots, creating new worlds and changing their settings
A Players tab to manage the players that have access and their level of access to the Realm
A Subscription tab to manage the Realms subscription
A Settings tab to change the settings of the Realm
Introduced a Region Preference setting that allows for more granular control over what region a Realm is started
Changed wording for Close/Open Realm to Temporarily close/Reopen Realm
Added the Realms logo to the Realms loading screens
Added region information when connecting to a Realm

Music and Sound[]

Music now plays even when the game is paused
Added an option to the Music & Sound settings that allows players to change how frequently music plays while in a game world
Added an option to the Music & Sound settings that enables a music toast to be shown whenever a song starts playing
- With this option enabled, the song that is currently playing will be seen at all times in the top left corner of the in-game Pause Menu
The following sound categories have been renamed:
- Friendly Creatures -> Friendly Mobs
- Hostile Creatures -> Hostile Mobs
Added new sound volume category called "UI" for sounds played by UI elements, like button clicks

Ambient Desert Block Sounds Changes[]

Ambient sand sounds no longer require sky access to play
Ambient sand sounds now have a slightly decreased chance to play
Sand blocks no longer trigger ambient wind sounds
Terracotta blocks no longer trigger ambient sand 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

Technical Changes[]

Pressing F3 + V now prints client-side version information
All JSON files (in worlds, packs, configuration, etc.) are now parsed in strict mode

Data Pack[]

The data pack version is now 80.
Dimension Type definitions have a new optional field, cloud_height that indicates on what y-level the clouds start in the dimension
--quickPlaySingleplayer command line argument can now be used without an identifier to launch into the last played world
Users will now be prompted for confirmation before executing a command from the run_command click action in books and chat if the command can't be parsed or requires elevated permissions (i.e. higher than 0)
The minecraft:custom click event has been expanded to carry a full NBT tag

Attributes

Added attribute 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

Added flying_speed attribute for Ghasts
- Ghasts now have a flying_speed attribute that affects their flying speed

The scale attribute for the Happy Ghast now has a limit of 1.0

Added attribute 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 that are within that range
- Similarly, receivers only receive waypoints that are inside their receive range (and receive nothing if that range is zero)
- Examples:
  - /attribute @s minecraft:waypoint_transmit_range base set 0 will prevent a player from transmitting (hiding them)
  - /attribute @s minecraft:waypoint_transmit_range base set 80 will only let a player transmit up to 80 blocks (hiding them from players further than that)
  - /attribute @s minecraft:waypoint_receive_range base set 0 will prevent a player from receiving (turns off their Locator Bar)
  - /attribute @s minecraft:waypoint_receive_range base set 120 will only let a player see Locator Bar dots that are within 120 blocks (hiding all players further than that)

Commands

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

Added /dialog
- New command has been added to show dialog to clients
- Syntax:
  - /dialog show <targets> <dialog> - show dialog to player(s)
    - <targets> - player name, UUID or a player selector
    - <dialog> - a namespaced ID from minecraft:dialog registry or inline dialog value as described above
    - Returns number of players in targets argument
  - /dialog clear <targets> - clean dialog for player(s), if they have any visible
    - <targets> - player name, UUID or a player selector
    - Returns number of players in targets argument

Modified /playsound
- Added new category ui
- Sounds in this category will continue playing when paused, similarly to music

Added /version
- No arguments
- Prints current version information on server side
- Available in singleplayer or for server operators

Added /waypoint
- For querying and modifying waypoints.
  - /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> style <waypoint_style/resource>
  - /waypoint modify <entity-selector> style reset
- Arguments:
  - 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
    - /style: For changing the icon spriteset and selection distances
      - /set <waypoint_style/resource> changes the style to a specific asset under /waypoint_style/
    - reset will restore the default icon behavior of the Locator Bar
- Waypoint Styles
  - These define custom icons to be displayed on the Locator Bar and are within the waypoint_style/ asset directory.
  - The default implementation is as such:

{
  "near_distance": 128,
  "far_distance": 332,
  "sprites": [
    "minecraft:default_0",
    "minecraft:default_1",
    "minecraft:default_2",
    "minecraft:default_3"
  ]
}

- - - near_distance and far_distance are optional and default to the values 128 and 332 respectively.
      - far_distance distance must be greater than near_distance
    - Each sprite is searched within the prefix of hud/locator_bar_dot/ (the directory textures/gui/sprites/hud/locator_bar_dot).

Data Components

attribute_modifiers Item Component
- 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 modifier entry

equippable Item Component
- Added optional field can_be_sheared (boolean)
  - If true, players can use Shears to remove this equippable item from a target mob by right-clicking, provided all other shearing conditions are satisfied
  - If not specified, it defaults to false
- Added optional field shearing_sound (sound event)
  - It's a sound event that plays when the equippable item is sheared
  - If not specified, it defaults to the item.shears.snip sound event

painting/variant Item Component no longer accepts inline variants

area_effect_cloud Entity Data
- 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

Added home_pos and home_radius fields to all mobs
- Mobs with set home position will limit their pathfinding to stay within the indicated area
- Some mobs, like Bats, Slimes, Magma Cubes, Phantoms and Ender Dragons may ignore it
- Interacting with leashes or riding may change the home position of the mob

tnt Entity Data
- The entity that primed the TNT is now stored in an optional owner field (UUID of Living entity)
vex Entity Data
- The owner of a Vex is now stored in an optional owner field (UUID of Mob)

Dialogs

Added a way to display simple modal dialogs to a user
Dialogs are an experimental feature
Every dialog can have inputs and can submit information
Dialogs are stored in a minecraft:dialog registry, but can also be defined inline
A new keybind called "Quick Actions" has been added to allow accessing content-configured dialogs
To avoid user confusion, dialog screens are marked with a warning sign next to the title
- Clicking on this warning leads to a dialog that explains to user that this screen is provided by custom content
- It also gives user an option to leave current world to avoid them being locked in infinite loop of dialogs
- If a new dialog is received by the client while warning screen is visible, it will not replace it, but when user clicks the "Back" button, the new dialog will be restored instead
Dialogs can be displayed by server in play and configuration connection phases
- However, only inline registries are allowed in configuration, since registries are not yet available in that phase
Dialogs always close after user selects any action
Dialogs can configure if they pause the game and if they close after an action is taken
Dialogs by default will also close after Escape key is pressed
- When this happens, dialog will run action specific to dialog type described as "exit action" below
- This behavior is configurable
When dialog screen is closed, game goes back to previously displayed non-dialog screen or back to gameplay
- That means that new dialogs always replace already opened ones, if any
Dialogs screens will pause the game in singleplayer mode
Dialogs can be configured to be accessible from Pause menu
- This replaces and expands "Server Links" button added in previous versions
Most dialogs follow a common layout, however exact contents depend on type:
- Header with title and warning button
- Body elements (labels, inputs, buttons and submit actions), scrollable if needed
- Optional footer, contains main buttons and submit actions
- The order of elements is:
  - Body
  - Inputs
  - Actions
Developer's Note: Dialogs are not supposed to fully describe any in-game UI, but just to allow custom content to display simple messages and get input from users. This feature is intentionally limited to match that use case.

Dialog Description Format
- Dialogs are stored in minecraft:dialog registry that can be provided by a datapack
- Fields:
  - type - one of dialog types from minecraft:dialog_type registry
  - <type-specific> - see below
- Common Dialog Fields
  - Most dialog types share some fields. To avoid duplication, they are listed in this section
  - Fields:
    - title - screen title, text component
      - Should be always visible on screen, no matter the specific type
    - external_title - name to be used for a button leading to this dialog (for example from Pause screen), optional text component
      - If not present, title will be used instead
    - body - optional list of body elements or a single element, see below
    - can_close_with_escape - can dialog be dismissed with Escape key, default true
    - pause - if the dialog screen should pause the game in single-player mode, default: true
    - after_action - an additional operation performed on the dialog after click or submit actions, default: close
      - After every action the dialog will always evaluate the contents of the after_action field
      - close - closes the dialog and returns to the previous non-dialog screen (if any)
      - none - does nothing, i.e. keeps the current dialog screen open
        only available if pause is false to avoid locking the game in single-player mode
      - wait_for_response - replace the current dialog with a "Waiting for Response" screen
        this option is intended to prevent users from sending multiple actions on slow connections
        servers are expected to eventually replace this screen with a new dialog
        
        to avoid accidental locking, a "Back" button will become active after 5 seconds
        clicking this button will continue as if the dialog was closed (i.e. the game returns to the previous non-dialog screen, if any)
        
        The "Waiting for Response" screen will unpause the game in single-player mode to avoid locking the game
- Common Button Data
  - Most actions in dialog types share following fields that describe appearance of a button associated with that action:
    - label - text component
    - tooltip - optional text component to display when button is highlighted or hovered over
    - width - width of the button, positive integer between 1 and 1024 (inclusive), with default 150
- Action Types
  - All existing click_event actions (except for open_file) are included as dialog action types.
  - Uses same format as click_event on text components (but with action replaced with type) For example, when using show_dialog, entry for action button will look like:

{
    "label": "some label",
    "action": {
        "type": "show_dialog",
        "dialog": "some:id"
    }
}

- - minecraft:dynamic/run_command Action Type
    - This action will build a run_command event using a provided macro template
    - The macro will be expanded with string values from all inputs
    - For example, if the macro template is some_command $(some_input), the string value from the input with key of some_input will be used for the template expansion
    - Inputs not used in macro will be ignored, while macro parameters not matching any inputs will be replaced with an empty string
    - Fields:
      - template - a string with a macro template to be interpreted as a command
  - minecraft:dynamic/custom Action Type
    - This method will build a minecraft:custom event using all input values
    - All input contents will be sent together inside a compound tag, with tag value of each input put under id from key field of that input
    - Additional static fields can be added to payload
    - Fields:
      - additions - fields to be added to payload, optional compound tag
      - id - namespaced ID
- Click Action
  - Common object used in dialogs to represent clickable action on a dialog
  - Fields:
    - Common button data (see above)
    - action - an action to perform when button is clicked, optional object with fields:
      - type - value from minecraft:dialog_action_type registry
      - <type-specific> - see below, depends on type
- Dialog Types
  - minecraft:confirmation
    - A simple screen with two actions in footer
    - Exit action: same as no action
    - Fields:
      - Common dialog fields (see above)
      - yes - click action (see above) for positive outcome
      - no - click action (see above) for negative outcome
  - minecraft:dialog_list
    - A scrollable list of buttons leading directly to other dialogs, arranged in columns
    - Titles of those buttons will be taken from external_title fields of targeted dialogs
    - Screen also has button in footer that runs exit action and closes the screen
    - Label will be gui.cancel if dialog has defined exit action and gui.back if it has no side effects
    - Exit action: defined in on_cancel field
    - Fields:
      - Common dialog fields (see above)
      - dialogs - dialog, a list of dialogs or a dialog tag
      - exit_action - holds an optional action
        If present, a button for it will appear in footer, otherwise the footer is not present
        
        Also used for the Escape action
      - columns - positive integer describing number of columns, default: 2
      - button_width - width of buttons in the list, positive integer with default 150
  - minecraft:multi_action
    - A scrollable list of actions arranged in columns
    - Screen also has button in footer that runs exit action and closes the screen
      - Label will be gui.cancel if dialog has defined exit action and gui.back if it has no side effects
    - Exit action: defined in on_cancel field
    - Fields:
      - Common dialog fields (see above)
      - actions - non-empty list of click actions (see above)
      - exit_action - holds an optional action
        If present, a button for it will appear in footer, otherwise the footer is not present
        
        Also used for the Escape action
      - columns - positive integer describing number of columns, default: 2
  - minecraft:notice
    - A simple screen with one action in footer
    - Exit action: same as action
    - Fields:
      - Common dialog fields (see above)
      - action - click action (see above), defaults to button with gui.ok label and no action or tooltip
  - minecraft:server_links
    - A scrollable list of links received from server in minecraft:server_links packet, arranged in columns
    - Screen also has button in footer that runs exit action and closes the screen
    - Label will be gui.cancel if dialog has defined exit action and gui.back if it has no side effects
    - Note: this is a replacement for previous Server Links screen, but now with an additional body
    - Exit action: defined in on_cancel field
    - Fields:
      - Common dialog fields (see above)
      - exit_action - holds an optional action
        If present, a button for it will appear in footer, otherwise the footer is not present
        
        Also used for the Escape action
      - columns - positive integer describing number of columns, default: 2
      - button_width - width of buttons in the list, positive integer with default 150
- Dialog Body Types
  - All dialogs have a list of body elements describing contents between title and actions or inputs
  - Click events are handled by the dialog screen like any other action - that means it will also run the after_action
  - Fields:
    - type - one of dialog body types from minecraft:dialog_body_type registry
    - <type-specific> - see below
  - minecraft:item
    - Item with optional description
    - If description is present, it will be rendered to the right of item
    - Item will be rendered as if it was in inventory slot
    - Item is not scaled even if width and height are set to values other than default
    - Fields:
      - item - item stack with count
      - description - optional object with fields:
        contents - text component
        
        width - maximum width of contents, positive integer between 1 and 1024 (inclusive), with default 200
        
        Can also be just be text component
      - show_decorations - if true, count and damage bar will be rendered over the item, default: true
      - show_tooltip - if true, item tooltip will show up when item is hovered, default: true
      - width - horizontal size of element, between 1 and 256 (inclusive), default: 16
      - height - vertical size of element, between 1 and 256 (inclusive), default: 16
  - minecraft:plain_message
    - A multiline label
    - Fields:
      - contents - text component
      - width - maximum width of message, positive integer between 1 and 1024 (inclusive), with default 200
- Input Control Types
  - Input dialog uses a set of controls to accept user input
  - When submitted, current value of input will be converted to a string and sent to the server as described by Submit Action section below
  - Fields:
    - type - one of input control types from minecraft:input_control_type registry
    - key - string identifier of value used when submitting data, must be a valid template argument (letters, digits and _)
    - <type-specific> - see below
  - minecraft:boolean
    - A plain checkbox with a label
    - Fields:
      - label - a text component to be displayed to the right of control
      - initial - an initial value, default: false (i.e. unchecked)
      - on_true - a string value to send when control is checked, default: 'true'
      - on_false - a string value to send when control is unchecked, default: 'false'
    - Output values:
      - As template substitution: on_true when checked, on_false when unchecked
      - As tag: 1b when checked, 0b when unchecked
  - minecraft:number_range
    - A slider for picking a numeric value out of some range
    - Sends currently selected value
    - Whole numbers will be sent without decimal point
    - Fields:
      - label - a text component to be used as a slider label
      - label_format - a translation key to be used for building label (first argument is contents of label field, second argument is current value), default: options.generic_value
      - width - width of input, positive integer between 1 and 1024 (inclusive), with default: 200
      - start - start value (when slider is in leftmost position) (inclusive), float
      - end - end value (when slider is in rightmost position) (inclusive), float
      - step - step size, optional positive float
        If present, only values of initial + <any integer> * step will be allowed
        
        If absent, any value from the range is allowed
      - initial - if not specified, now defaults to the middle of the range
    - Output values:
      - As template substitution: text representation of current value
        Whole numbers will be sent without decimal point
      - As tag: a float tag with current value
  - minecraft:single_option
    - A button that cycles between a set of options when clicked
    - Sends value associated with currently selected preset
    - Fields:
      - label - a text component to be displayed on the button
      - label_visible - if true, label will be incorporated into button text, default: true
      - width - width of button, positive integer between 1 and 1024 (inclusive), with default: 200
      - options - a list of objects with fields:
        id - a string value to send on submit
        
        display - a text component to display on button, optional (if not present, id is used)
        
        initial - an optional boolean flag that selects initial option (only one option can have it set to true)
        
        Additionally list might also contain plain string - in that case it's equivalent to a single entry with field id set to that string and other fields set to default
  - minecraft:text
    - Simple text input
    - Sends current contents without modification
    - Fields:
      - width - width of input, positive integer between 1 and 1024 (inclusive), with default: 200
      - label - a text component to be displayed to the left of control
      - label_visible - controls label visibility, default: true
      - initial - initial contents, default: "" (empty)
      - max_length - maximum length of input, positive integer with default of 32
      - multiline - if present, allows users to input multiple lines, optional object with fields:
        max_lines - if present, limits maximum lines, optional positive integer
        
        height - height of input, optional integer in range 1 to 512
        If this field is omitted, but max_lines is present, the height that will be chosen to fit the maximum number of lines can't exceed 512
        
        If this and max_lines are both omitted, it will default to a height that fits 4 lines
    - Output values:
      - As template substitution: contents with special characters escaped to fit in a SNBT literal (note: both ' and " are escaped)
      - As tag: a string tag with contents without modification
- Submit Actions
  - Every submit action on input dialog has a button associated with it
  - When one of those buttons is clicked, values of all inputs will be collected and sent to a server using one of methods described below
  - id field of a submit action will be included as an input with key action
  - Submit action fields:
    - Common button data (see above)
    - id - string identifier of an action
    - action - an action to perform when button is clicked, optional object with fields:
      - type - value from minecraft:dialog_action_type registry
      - <type-specific> - see below, depends on type
  - Note: server does not validate individual values as they arrive as filled commands or custom payloads
- Submit Method Types
  - minecraft:command_template
    - This method will build a command using a provided macro template and request the server to run it (same as minecraft:run_command click event)
    - If the command requires permission higher than 0 (when any operator permissions are required), a confirmation dialog will be shown
    - Macro will be expanded with values from input
    - For example, if macro is some_command $(action), action parameter will be expanded to id field of a submit action
    - Inputs not used in macro will be ignored, while macro parameters not matching any inputs will be replaced with an empty string
    - Fields:
      - template - a string with a macro template to be interpreted as a command
  - minecraft:custom_form
    - This method will build a custom server click action from all values and request the server to run it (same as minecraft:custom click event)
    - Format:
      - keys are separated from values with horizontal tabulation (U+0009) character
      - key-value entries are separated with line feed (U+000A) character
      - If characters U+0009 and U+000A are present in any key or value, they will be escaped to \t and \n
    - Fields:
      - id - namespaced ID
  - minecraft:custom_template
    - This method will build a custom server click action using a provided macro template and send it to the server (same as minecraft:custom click event)
    - Macro will be expanded with values from input
    - Inputs not used in macro will be ignored, while macro parameters not matching any inputs will be replaced with an empty string
    - Fields:
      - template - a string with a macro template to be used as a payload
      - id - namespaced ID

Built-in dialogs
- The built-in datapack contains some custom dialogs to provide customization of specific screens used by client
- minecraft:custom_options
  - Shows contents of minecraft:pause_screen_additions tag (see below)
  - Lets user select a specific dialog if this tag contains multiple entries
  - Note: Since this tag is meant for interoperability, any content that replaces this dialog should be careful to not hide other dialog providers
- minecraft:server_links
  - Replacement for previously existing "Server Links" screen
  - Meant to simplify migration for servers that used this feature previously

Game Rules

Added LocatorBar game rule
- Default is true: enabling the Locator Bar
- Changing to off will remove all existing Waypoints from all players
- Renamed from useLocatorBar during the experiment. This may break minor command related features in worlds created in the previous snapshot.

Pause Screen Configuration

A data pack can request some of the available dialogs to be accessible from Pause screen
This feature replaces "Server Links" button and is placed on Pause screen according to the same rules
Buttons leading to dialogs exposed in this way will use label described in external_title field
This feature is configured by minecraft:pause_screen_additions dialog tag:
- If this tag is not specified or is empty but the server has sent server_links packet, tag will be handled as if it contained minecraft:server_links dialog
  - Note: this matches previous Server Links feature behavior
  - If this dialog is removed, the tag remains empty
  - If this tag is still empty, button is not visible ("Send Feedback" and "Report Bugs" buttons are visible instead)
- If this tag has a single element, Pause screen button will lead directly to this dialog
- If this tag has multiple elements, Pause screen button will lead to minecraft:custom_options which (by default) lets user select one of the tag elements
  - If this dialog is removed, button is not visible

Quick Actions Keybind

A new keybind has been addded that allows users to access a set of dialogs
Default key: G
This feature is configured by minecraft:quick_actions dialog tag
- If this tag is empty, the keybind does nothing
- If this tag has a single element, the keybind will open this dialog
- If this tag has multiple elements, the keybind will lead to minecraft:quick_actions dialog which (by default) lets user select one of the tag elements
  - If this dialog is removed, the keybind does nothing
This option is intended to be used in custom content and by servers, so this tag is empty by default

Tags

Block tags:
- Added #happy_ghast_avoids: blocks that happy ghasts avoid getting close to
- Added #triggers_ambient_desert_dry_vegetation_block_sounds: contains blocks that can trigger ambient desert dry vegetation sounds to play from blocks above
- Added #triggers_ambient_dried_ghast_block_sounds: blocks that can trigger ambient Dried Ghast sounds to play when a Dried Ghast block is placed on them
- Renamed #plays_ambient_desert_block_sounds to #triggers_ambient_desert_sand_block_sounds
Item tags:
- Added #happy_ghast_food: contains items that can be used to feed Happy Ghasts
- Added #happy_ghast_tempt_items: contains items that can be used to tempt Happy Ghasts
Entity tags:
- Added #can_equip_harness: contains entities that can equip the Harness items
- Added #followable_friendly_mobs: contains non-baby entities that will be followed by Baby Happy Ghasts
Updated #followable_friendly_mobs to include the Happy Ghast

Text Components

Click Events
- New click action minecraft:custom has been added
  - When user clicks a component with this click action, client will send a dedicated packet minecraft:custom_click_action to a server
  - The intended use is as an alternative for run_command to be used by modded servers without worrying about having to add custom commands
  - This packet has no functionality on vanilla servers
  - Fields:
    - id - namespaced ID
    - payload - optional string field
Dialog Click Event
- New action show_dialog has been added
  - When user clicks this component, a dialog will be opened for them
  - Fields:
    - dialog - a namespaced ID from minecraft:dialog registry or inline dialog value as described above

Triggers

Added minecraft:player_sheared_equipment
- Can Trigger when a player shears off a shearable equipment from an Entity
- Conditions:
  - item - Item that is sheared
  - entity - The entity that was sheared

Resource Pack[]

The resource pack version is now 63.
The game will now consistently respect blur texture parameter in .png.mcmeta files
Panorama textures must now all be the same size, and square
All core shader uniforms are now uniform blocks
The cloud texture (clouds.png) can no longer be colored

Block Models

elements[].rotation.angle value in block models is no longer limited to multiplies of 22.5 degrees and can now be any angle from -45 to +45

Equipment Assets

Added new happy_ghast_body layer type, rendering in the body slot of the Happy Ghast

Font

Updated Unifont to 16.0.03
Added previously omitted Unifont glyphs for Private Use Areas
- Those glyphs are loaded as a separate sub-font minecraft:include/unifont_pua and are not included in any normally used font
- Characters in those areas are managed by Under-CSUR (Under-ConScript Unicode Registry), which adds various scripts not present in official Unicode set, like Tengwar or Sitelen Pona
unihex Font Provider
- Field size_overrides is now optional (defaults to empty list)

Item Models

Item model definitions now have a boolean field oversized_in_gui which is false by default
- If true, the item model will be allowed to be bigger than its item slot
- If false, the item model will be clipped to the item slot size when being rendered in gui
- This ability of items being rendered outside their slots should not be considered officially supported, it was temporarily restored as an exception since many servers are relying on it
- At some point in the future we hope to replace it with an officially supported way of achieving similar functionality
Introduced new item model minecraft:player_head to handle player profile texture loading and rendering
Removed support for minecraft:profile from minecraft:head
minecraft:player_head special model type
- Renders a player head
- Uses profile from the minecraft:profile component to load a texture. Renders a default texture until the profile texture is fully loaded
- No fields
minecraft:head special model type
- No longer supports profile from minecraft:profile component to load a player texture
- Renders a default player texture when kind is player and no texture override is supplied
- Fields remain unchanged

Shaders & Post-process Effects

Developer's Note: Although it is possible in Resource Packs, overriding Core Shaders is considered as unsupported and not an intended Resource Pack feature. These shaders exist as part of the internal implementation of the game, and as such, may change at any time as the game's internals evolve. We understand that overriding Core Shaders is used for very cool Resource Pack features, many of which lack supported alternatives. We would like to provide better, supported alternatives in the future.

All built-in uniforms are now uniform blocks instead of opaque loose uniforms
Custom uniforms provided to post-process shaders are now uniform blocks
Uniform definitions inside json files are now per-block

Shader fog changes
- The fog is now split into environmental and render-distance-based
- Previously both those concepts were mixed in the same uniforms
- Environmental fog is supposed to represent the "fogginess" of the environment the player is in: lava, water, and now also atmosphere
- Render distance fog is supposed to obscure the border of visible terrain
- Environmental fog uses spherical distance to determine its intensity, render distance fog uses cylindrical distance
- The resulting fog value for any given vertex is the maximum of both

Post-process Effect Definitions
- Entries in the targets map have been expanded to support new properties
  - New optional boolean field: persistent (default: false)
    - If true, this render target will be persistent across frames
    - The contents of the target will be cleared when the screen is resized
  - New optional field: clear_color (default: [0, 0, 0, 0])
    - Format: integer ARGB value, or float array in order [R, G, B, A]
    - When this target is created or cleared, it will be filled with this color
- The uniforms values is now a list-per-block, instead of a global list
  - e.g. uniforms: { "UniformBlockName": [ { "type": "vec2", "value": [...] } ] }
    - The order of uniforms in a block must match the order in the shader
- name as part of a uniform definition is no longer used
  - We encourage setting it to help keep the json file organised/readable, but the game won't use it
- value as part of a uniform definition replaces the old values, and the type depends on the type field
  - This field is required
  - "type": "int" needs "value": 123 (a single int)
  - "type": "float" needs "value": 123.4 (a single float)
  - "type": "vec2" needs "value": [1.2, 3.4] (two floats)
  - "type": "vec3" needs "value": [1.2, 3.4, 5.6] (three floats)
  - "type": "ivec3" needs "value": [1, 2, 3] (three ints)
  - "type": "vec4" needs"value": [1.2, 3.4, 5.6, 7.8] (four floats)
  - "type": "matrix4x4" needs "value": [1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0, 16.0] (four rows of four columns of floats)
- We do not validate that the uniform block is valid for a given shader, giving incorrect information will cause undefined and funky behavior

Post-process Effect Shaders
- Instead of every uniform being an individual opaque type, they are now grouped in uniform blocks
  - They will be set according to the pass definition in the json file, and may be shared across both vertex and fragment shaders
- The list of sizes (all vec2 *Size uniforms) are now replaced with a single SamplerInfo uniform block
  - This contains, in order, the size of the output texture followed by the size every input texture
  - The order of textures in the definition file will dictate the order of samplers in this uniform
  - For most post chains this is just OutSize and InSize as before
  - All sizes are vec2
- post/bits.fsh
  - Expects a BitsConfig of float Resolution and float MosaicSize
- post/blit.fsh
  - Expects a BlitConfig of vec4 ColorModulate
- post/blur.vsh and post/box_blur.fsh
  - Expects a BlurConfig of vec2 BlurDir and float Radius
- post/color_convolve.fsh
  - Expects a ColorConfig of vec3 RedMatrix, vec3 GreenMatrix and vec3 BlueMatrix
- post/invert.fsh
  - Expects a InvertConfig of float InverseAmount
- post/rotscale.vsh
  - Expects a RotScaleConfig of vec2 InScale, vec2 InOffset and float InRotation
- post/spiderclip.fsh
  - Expects a SpiderConfig of vec4 Scissor and vec4 Vignette
- Globals Uniform Block
  - Available through #moj_import <minecraft:globals.glsl> for convenience
  - Most shaders are able to receive this uniform block, even if they don't normally use it
  - Contains ScreenSize, GlintAlpha, GameTime and MenuBlurRadius (new)
    - MenuBlurRadius is the blur radius of the background when a menu is open
- Fog Uniform Block
  - Available through #moj_import <minecraft:fog.glsl> for convenience
  - Most shaders are able to receive this uniform block, even if they don't normally use it
  - Contains FogColor, FogRenderDistanceStart, FogRenderDistanceEnd, FogSkyEnd (new) and FogCloudsEnd (new), FogEnvironmentalStart (new), FogEnvironmentalEnd (new)
    - FogSkyEnd is new and represents where the fog should end when drawing for the sky
    - FogCloudsEnd is new and represents where the fog should end when drawing the clouds
    - FogRenderDistanceStart represents the render distance fog start
    - FogRenderDistanceEnd represents the render distance fog end
    - FogEnvironmentalStart is new and represents the start of environment-based fog
    - FogEnvironmentalEnd is new and represents the end of environment-based fog
  - FogStart was replaced with FogRenderDistanceStart
  - FogEnd was replaced with FogRenderDistanceEnd
  - FOG_IS_SKY has been removed in favor of splitting up the sky shader
  - FogShape was removed. Render distance fog is now cylindrical and environmental is for spherical
- Projection Uniform Block
  - Available through #moj_import <minecraft:projection.glsl> for convenience
  - Most shaders are able to receive this uniform block, even if they don't normally use it
  - Contains ProjMat with no changes
- DynamicTransforms Uniform Block
  - Available through #moj_import <minecraft:dynamictransforms.glsl> for convenience
  - Is no longer available to shaders that do not normally use it
  - Contains ModelViewMat, ColorModulator, ModelOffset, TextureMat, LineWidth
    - These are very likely to change in the near future
    - The values of some of these are often hard coded and may not make sense for a given shader, ie LineWidth in any non-line based pipeline
- Lighting Uniform Block
  - Available through #moj_import <minecraft:light.glsl> for convenience
  - Most shaders are able to receive this uniform block, even if they don't normally use it
    - The values may not make sense if the shader wouldn't normally expect it, however
  - Contains Light0_Direction and Light1_Direction
- CloudInfo Uniform Block
  - Only available to the clouds shaders (rendertype_clouds.vsh/rendertype_clouds.fsh)
    - Contains CloudColor, CloudOffset and CellSize (new)
      - CellSize contains the size of an individual cloud cell
- LightmapInfo Uniform Block
  - Only available to the lightmap shader (lightmap.fsh)
  - Contains AmbientLightFactor, SkyFactor, BlockFactor, UseBrightLightmap, NightVisionFactor, DarknessScale, DarkenWorldFactor, BrightnessFactor, SkyLightColor with no change in behavior

Sounds

Changed location on the sounds for glow squid, squid, guardian, horse, rabbit and pufferfish from entity folder to the mob folder
Added entity/leashknot/break for when a Lead snaps
The following sounds have been renamed:
- entity/leashknot/break1 -> entity/leashknot/unleash1
- entity/leashknot/break2 -> entity/leashknot/unleash2
- entity/leashknot/break3 -> entity/leashknot/unleash3
- entity/leashknot/place1 -> entity/leashknot/leash1
- entity/leashknot/place2 -> entity/leashknot/leash2
- entity/leashknot/place3 -> entity/leashknot/leash3
The following sounds have been added for shearing Saddles, Horse Armor, and Carpets from Llamas
- mob/horse/armor_unequip
- mob/horse/saddle_unequip
- mob/llama/unequip

Sound Events

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

UI Sprites

The hud/locator_bar_arrow_up and hud/locator_bar_arrow_down sprites are now animated with a standard animation definition in the corresponding .mcmeta files
The Mob Effect atlas has been removed, and sprites in the textures/mob_effect/ folder are now included within the GUI atlas
- This means Mob Effect sprites now support GUI sprite scaling properties
Added icon/music_notes and toast/now_playing sprites

Fixes[]

Reverted the fix for MC-101556: Nether Portal teleport range is too large (equivalent to a full block)
- Developer's Note: After consideration, we have decided to revert this change as it came in quite late in the snapshot cycle and unintentionally broke some functionality that our community were relying on. We'd like to revisit this at some point when we have time to deal with the issues that showed up due to this change
The fix to MC-3697 has been partially reverted. Decorative hanging entities such as paintings and item frames are now immune to explosions from submerged TNT while items and armor stands are once again vulnerable to them

20 issues fixed
From released versions before 1.21.6

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
MC-275374 – Drowneds with CanBreakDoors:1b don't break doors
MC-276264 – Advancement screen shadow renders below item icons
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
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
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

41 issues fixed
From released and snapshot versions before 25w16a

MC-104231 – Loading a custom structure doesn't load rails correctly
MC-277369 – The draft report icon isn't initially visible when saving a report as a draft
MC-277370 – The draft report icon doesn't initially disappear when a report is discarded
MC-279515 – The game stalls when running the "/test clearall" command with large radiuses
MC-280297 – The volume level between grass and dirt is inconsistent
MC-293754 – Minecraft causes OpenGL errors occasionally
MC-295395 – Entities interact differently with nether portals
MC-295677 – Title screen fades in from black after closing the "Welcome to Minecraft" screen
MC-295895 – 1.21.5 breaks minecart behavior when travelling through nether portals
MC-295944 – Reloading a professionless zombie villager causes it to gain random profession clothing
MC-296099 – Nether portal collision is or isn't working depending on the cardinal direction
MC-296121 – ClientboundLevelChunkPacketData buffer size is too big
MC-296348 – NoAI:1b mobs cannot be ridden in 1.21.5+
MC-296353 – Potions, tipped arrows, and dyed leather armor render with missing or incorrect colors in the inventory
MC-296355 – Characters in front of the cursor render one pixel too far to the left
MC-296356 – Hitbox rendering in GUIs is broken
MC-296357 – Happy ghasts produce footstep sounds when flying close above blocks
MC-296358 – A player in Spectator mode on top of a happy ghast makes it stop moving
MC-296363 – Scrolling in the experiments screen does not move the positions where the buttons can be selected
MC-296365 – Block placing sounds are played when the block states of completely unhydrated dried ghasts are changed
MC-296366 – Kicked for flying while flying happy ghast
MC-296367 – The enchantment glint in the inventory appears on all items of the same type
MC-296373 – The side faces of dried ghast tentacles aren’t culled when covered by blocks
MC-296376 – Sounds produced by ghastlings can be heard from too far away
MC-296381 – Dried Ghasts always face north in world generation
MC-296382 – Filled maps are blurry
MC-296401 – Harnesses are not sorted correctly in the Creative Inventory
MC-296419 – Spectators' names in multiplayer tab list render improperly compared to 1.21.5
MC-296426 – Text background lacks opacity over hotbar icons
MC-296427 – Happy ghasts move/spin erratically when leashed to a fence
MC-296434 – Unable to see items when hovering over them inside of a bundle
MC-296437 – Items render behind effect icons and recipe book inside of the inventory
MC-296444 – Blur is applied to resource pack icons
MC-296465 – Highlighting text on a sign causes it to override the sign background
MC-296467 – Item tooltips cause items behind it to not render
MC-296470 – Items render behind text in anvils
MC-296471 – Hud is now hidden while in bed resulting in delayed hud rendering
MC-296517 – The menu panorama turns gray when the switching realm worlds interface is open
MC-296518 – Text inside the middle of the java realms information box completely disappears when selected
MC-296524 – Server and singleplayer world icons are blurry
MC-296638 – Clocks, compasses, and lodestone compasses do not render enchantment glint in certain display contexts when using Fabulous! graphics

28 issues fixed
From released and snapshot versions before 25w17a

MC-240121 – "1x1_b5.nbt" piece does not generate in woodland mansions
MC-296369 – Dispensers cannot equip harnesses onto happy ghasts
MC-296421 – Right-clicking a happy ghast equipped with a harness while crouching will play hand animation
MC-296438 – The "display" field on Attribute Modifiers is not optional, despite the changelog saying it is
MC-296443 – Happy ghasts don’t avoid pathfinding into dangerous blocks
MC-296511 – Gamemode Switcher icons become invisible when using resource pack with opaque or translucent selection.png
MC-296516 – Tooltips are incorrectly rendered below nearby elements when holding your mouse cursor over players that are online on realms
MC-296538 – Rarity of Dried Ghast is inconsistent with its crafting ingredients (recipe has updated to Soul Sand Block rather than a Bone Block)
MC-296542 – Waypoints on locator bar do not adjust to 3rd person front camera
MC-296567 – Waypoints on locator bar do not respect team colors
MC-296583 – Applying the waypoint_transmit_range attribute to an entity at the same time it is summoned makes it not show on the locator bar
MC-296750 – The game crashes after startup on some systems (predominantly Linux systems) with AMD graphics
MC-296755 – Resource Packs: The panorama overlay now renders in front of everything in the title screen
MC-296756 – Clouds do not render at render distance 2 & 3
MC-296764 – The text cursor renders behind command auto-complete text
MC-296766 – GUIs of rideable mobs are missing their slots as of 25w16a
MC-296770 – Strikethrough text in the villager interface is rendered behind characters
MC-296774 – Player messages within the "Select Chat Messages to Report" menu aren’t rendered while selected
MC-296775 – Some elements within the "Select Chat Messages to Report" menu are rendered darker while player messages are selected
MC-296777 – Lead shift right-clicking doesn't work on Boats with Chests
MC-296779 – The social interactions menu is rendered darker than normal
MC-296782 – Player models within the “Report Player Skin” menu are rendered darker and lower than normal
MC-296794 – Furnaces, blast furnaces, and smokers sometimes do not show the burn progress and lit progress animations
MC-296805 – The game crashes when holding your mouse cursor over players that are online on realms
MC-296806 – Cloud rendering has a considerable impact on performance as of 25w16a
MC-296807 – The titles of selected tabs within the "Create New World" menu are rendered behind the background
MC-296808 – The titles of lists within the resource pack and data pack menus are rendered behind the background
MC-296984 – The "No pending invites!" text within the realms invitation menu is rendered behind the background

18 issues fixed
From released and snapshot versions before 25w18a

MC-200925 – Ghasts are not affected by potions thrown on their head
MC-262268 – Keyboard navigation does not work in the book and quill GUI
MC-264431 – #minecraft:sand tag has two minecraft:suspicious_sand
MC-278459 – unifont.json contains trailing comma
MC-279284 – Experience orbs from thrown bottles o' enchanting are very prone to getting stuck inside blocks
MC-279875 – Cannot diagonally climb slab through suspended scaffolding
MC-280281 – Fishing bobbers rapidly jitter when attached to entities that are moving
MC-280502 – Translation key snbt.parser.undescore_not_allowed has a typo
MC-295879 – Sprint-hitting boats and then getting in them causes the boat to fall through the block underneath
MC-295914 – Loot table files accept invalid JSON
MC-296354 – Happy ghasts aren’t affected by potions thrown on their heads
MC-296784 – The "Welcome to Minecraft" screen is missing its fade out
MC-296866 – Predicates of particular namespaces failed to be accessed on /execute
MC-296898 – Happy ghasts' home slightly drift over time
MC-297112 – You cannot use CTRL+NUM to navigate to tabs within the configure realms menu
MC-297114 – The realms menu incorrectly claims that realms are expiring soon
MC-297115 – The “This is a Snapshot Realm…” box no longer renders with a black background
MC-297184 – 'Realms' is lowercase in mco.errorMessage.realmsService.configurationError.

20 issues fixed
From released and snapshot versions before 25w19a

MC-69821 – TNT "forgets" the player that ignited it when the world is reloaded
MC-118430 – Vex summoner is not stored in NBT despite being used for AI task
MC-118432 – Vex summoner is not reset once it is dead
MC-277486 – Mob effect icons ignore "scaling" parameter in mcmeta files
MC-277903 – Creative inventory tab icons can display item cooldown overlay
MC-295690 – Players stay on fire for a while after barely touching fire
MC-296432 – The ability to stand on top of happy ghasts which have a larger scale attribute becomes unreliable or even impossible
MC-296460 – Debug crosshair renders incorrectly
MC-296494 – The player sometimes falls from a happy ghast when reconnecting to a world
MC-296701 – Transformed entities do not retain their custom_data component
MC-296709 – All non-default jukebox_playable components are deleted from existing items when updating past 1.21.4
MC-296797 – The movement of happy ghasts for non-controlling passengers is jittery
MC-296813 – The panorama isn't slightly blurred anymore which causes some "flickering" effects
MC-296970 – The dried ghast block has a hit sound event (block.dried_ghast.hit has now been removed)
MC-297142 – The "Leave Bed" button is invisible
MC-297235 – Clouds not fully rendered depending on angle when very high above the world
MC-297271 – Waypoint packet is handled by network thread instead of render thread, causing crash
MC-297339 – Sign text is non-functional
MC-297347 – Tamed animals no longer sit when their owner changes dimension
MC-297461 – Equipment and sleeping pos data cannot be loaded in 1.21.4, but can be loaded in 1.21.5 to bees spawned from bee nest and bee hive

15 issues fixed
From released and snapshot versions before 25w20a

MC-97423 – Horse temporarily stuck in jump animation if dismounted
MC-103511 – Sound/Song stops playing after adjusting the volume
MC-118081 – Sounds don't pause when game is paused on some UI screens
MC-248682 – Translucent blocks moved by pistons aren't affected by fog correctly
MC-248688 – Falling translucent blocks aren't affected by fog correctly
MC-269744 – Out of memory crash when using a preset with a large layer
MC-276665 – Music is never turning on when it's toggled in the menu
MC-277991 – The 2 brightest pixel colors on pale oak boat items are still switched
MC-296311 – TNT touching water will destroy blocks and damage entities but will ignore decorative entities
MC-296836 – Happy ghast saddle model doesn't change when lead is broken by exceeding max range.
MC-296843 – Clouds are rendered incorrectly on some Mac systems
MC-297524 – Connection with realm gives weird HTML text
MC-297535 – The enchantment glint doesn't render in first person or the inventory
MC-297544 – Rain fog does not affect 1st person hand or items
MC-297570 – Block breaking overlay not affected by environmental fog

20 issues fixed
From released and snapshot versions before 25w21a

MC-36696 – Clicking on the statistics button on the menu screen advances the game by 1 tick
MC-112730 – Beacon beam and structure block render twice per frame
MC-236464 – Beacon beams emitted from below the player are invisible after reloading chunks
MC-258336 – Frost Walker causes frequent visual corruption near chunk borders on Threaded and Semi-Blocking Chunk Builder
MC-296337 – Minecarts cause memory usage increases and crashes
MC-297264 – Cat breeds are not seed based anymore
MC-297336 – Experience orbs from thrown bottles o' enchanting are very prone to getting stuck inside blocks when thrown against a corner
MC-297615 – Untranslatable error message when trying to join a closed Realm
MC-297803 – The string "menu.custom_screen_info.contents" misspells "personal" as "pesonal"
MC-297806 – music.game.swamp.labyrinthine misspells the song's title
MC-297808 – music.game.oxygene is missing the grave accent sign
MC-297812 – Bold text is rendered differently than in previous versions
MC-297813 – Amos Roddy is not listed in the credits
MC-297823 – music.game.mice_on_venus is using wrong capitalization
MC-297845 – Clicking the Statistics button in Singleplayer does not play the button click sound until you resume playing
MC-297846 – The music toast flashes in the pause menu when the Music slider is set to zero
MC-297875 – Text shadow from underlined text overlaps the text below it in chat messages
MC-297888 – Text no longer renders in a consistent order across different fonts
MC-297917 – The client stops responding when showing a dialog with an extremely wide button
MC-297977 – Dialog columns layout has extra spacing between the grid and the overflow linear layout

26 issues fixed
From released and snapshot versions before 1.21.6-pre1

MC-94800 – URL shown in open URL dialog is not shortened
MC-140819 – Lectern model extends past inventory slot
MC-200092 – /setworldspawn seems to ignore the 'angle' parameter
MC-272825 – Custom filled maps from 23w31a and earlier do not upgrade properly in later versions
MC-280276 – Some item models can still clip into the block below when hovering on the ground
MC-296420 – '/datapack create' can create directories with illegal names
MC-296431 – Clipping item sprites to stay in slot makes it impossible to hide the slot for resource packs
MC-296458 – Player heads in the inventory don't show the right skin
MC-297275 – Players can desync from their mounts when jumping on a happy ghast
MC-297550 – Happy ghasts don’t remain stationary correctly when players dismount them while other players are still controlling them
MC-297807 – Clicking "Save and Quit to Title" in the dialog warning menu takes you to the server list even if the world is singleplayer or locally-hosted LAN
MC-297817 – Newly placed paintings sometimes appear at a different position
MC-297848 – The menu background is not shown for a short amount of time when leaving a world from a dialog
MC-297868 – Items in the armor.body and saddle slots are not kept when dying while the game rule keepInventory is set to true
MC-297893 – prevent_equipment_drop enchantment effect does not work with armor.body and saddle slots
MC-297894 – /clear command does not clear armor.body and saddle slots
MC-297897 – Players can fall through happy ghasts
MC-297899 – FPS drops due to clouds
MC-297906 – Running a command with a large output whilst on a dedicated server causes a kick and no logged output
MC-297915 – The name plates of entities with an empty custom name are now rendered incorrectly
MC-298071 – All naturally spawned zombie villagers are professionless since 25w16a
MC-298101 – Sniffers now show the digging animation instead of the walking animation
MC-298116 – The warning text in the confirm link screen is no longer visible
MC-298117 – All buttons at the bottom of the Realms screen are clickable when no realm is selected
MC-298139 – Items bigger than the size of a slot incorrectly bleed over onto other items
MC-298146 – GUI items disappear at high screen resolutions

14 issues fixed
From released and snapshot versions before 1.21.6-pre2

MC-217887 – Unsigned books written in 1.9-pre1 or earlier don't upgrade properly
MC-297575 – Happy Ghast with nbt NoAI set to true can't be controlled by player
MC-297591 – Ender pearls can unexpectedly come to a halt
MC-298104 – The max_lines field of multiline text input control is unrestricted, lagging the game
MC-298144 – The initial value of minecraft:text input type is limited to 32 characters, regardless of max_length field
MC-298155 – Dialog command_template using a multiline text input causes player to be kicked out of the server due to illegal characters in chat (which is \n)
MC-298209 – Player cannot move while touching a happy ghast's body
MC-298301 – Blinking the cursor shifts all characters to the right of a multilines text field input in Dialogs
MC-298307 – Entering and exiting a pale garden while in Creative mode causes the current music track to remain silent
MC-298358 – Riding a mob into powder snow no longer affects the player properly
MC-298361 – Happy ghast with player riding, teleports back and forth when exiting nether portal
MC-298368 – "music_notes.png.mcmeta" has an extra index that does not exist, causing a warning
MC-298394 – Freezing in Powdered Snow is very inconsistent and jittery
MC-298422 – Ghasts and happy ghasts do not take damage from harmful blocks under some circumstances

12 issues fixed
From released and snapshot versions before 1.21.6-pre3

MC-296371 – The entity shadows of happy ghasts are too small in relation to the size of their models
MC-296374 – The entity shadows of ghastlings are too small in relation to the size of their models
MC-296853 – The "Shear Brilliance" advancement is incorrectly given by shearing a lead off a wolf
MC-297113 – Hotbar shown in loading terrain screen
MC-297497 – The “Connection Lost” title isn’t displayed when being kicked from realms due to idle timeout
MC-297972 – Dialog body content is misaligned
MC-298353 – Ridden entities won't make the lead breaking sound when attached to a fence
MC-298412 – Subtitles are no longer shown when the master volume is set to zero
MC-298466 – When clicking the "yes" button to confirm command execution in a dialog, if the player is put into another dialog, the click sound from the "yes" button will not be played until it is closed
MC-298492 – Disconnecting through dialog in configuration phase causes the client to crash.
MC-298516 – While running /dialog clear and /dialog show every tick, pressing the warning button just after joining the world can crash the game
MC-298520 – Items in slots now render behind the container title, mismatching 1.21.5 behavior

4 issues fixed
From released and snapshot versions before 1.21.6-pre4

MC-279417 – Luring mobs onto blocks at Y=-64 will instead make them pathfind to the highest elevation
MC-298446 – The "Thunder roars" sound is no longer affected by the master volume
MC-298510 – Happy ghasts stay still for a few seconds when you get off them
MC-298653 – Master volume slider no longer affects /playsoud sounds with high volume

3 issues fixed
From released and snapshot versions before 1.21.6-rc1

MC-298022 – Not signed Books and Quills with an overflowing new line at the bottom do not depict the pages' contents
MC-298633 – Happy Ghast gets you stuck in blocks while riding and gets stuck in blocks upon dismount
MC-298658 – Locator Bar shows inaccurate positions after respawn

Gallery[]

References[]

↑ VIBRANT VISUALS & CHASE THE SKIES
↑ ^a ^b "Minecraft Live 2025: The Recap" by Sophie Austin. Minecraft.net, October 15, 2023
↑ ^a ^b "The Spring to Life game drop comes today, the summer drop updates comes in June!" – @JustJosIt on X, March 25, 2025 (archived)
↑ ^a ^b "Snapshot 25w15a" by Java Team. Minecraft.net, April 8, 2025
"Snapshot 25w16a" by Java Team. Minecraft.net, April 15, 2025
"Snapshot 25w17a" by Java Team. Minecraft.net, April 22, 2025
"Snapshot 25w18a" by Java Team. Minecraft.net, April 29, 2025
"Snapshot 25w19a" by Java Team. Minecraft.net, May 6, 2025
"Snapshot 25w20a" by Java Team. Minecraft.net, May 13, 2025
"Snapshot 25w21a" by Java Team. Minecraft.net, May 20, 2025
"1.21.6-pre1" by Java Team. Minecraft.net, May 28, 2025
"1.21.6-pre2" by Java Team. Minecraft.net, June 2, 2025
"1.21.6-pre3" by Java Team. Minecraft.net, June 4, 2025
"1.21.6-pre4" by Java Team. Minecraft.net, June 10, 2025
"1.21.6-rc1" by Java Team. Minecraft.net, June 12, 2025
↑ ^a ^b "Our next game drop has a name: Get ready to Chase the Skies" by Sophie Austin. Minecraft.net, June 1, 2025

[1] VIBRANT VISUALS & CHASE THE SKIES

[recap-2] "Minecraft Live 2025: The Recap" by Sophie Austin. Minecraft.net, October 15, 2023

[date-3] "The Spring to Life game drop comes today, the summer drop updates comes in June!" – @JustJosIt on X, March 25, 2025 (archived)

[snapshots-4] "Snapshot 25w15a" by Java Team. Minecraft.net, April 8, 2025
"Snapshot 25w16a" by Java Team. Minecraft.net, April 15, 2025
"Snapshot 25w17a" by Java Team. Minecraft.net, April 22, 2025
"Snapshot 25w18a" by Java Team. Minecraft.net, April 29, 2025
"Snapshot 25w19a" by Java Team. Minecraft.net, May 6, 2025
"Snapshot 25w20a" by Java Team. Minecraft.net, May 13, 2025
"Snapshot 25w21a" by Java Team. Minecraft.net, May 20, 2025
"1.21.6-pre1" by Java Team. Minecraft.net, May 28, 2025
"1.21.6-pre2" by Java Team. Minecraft.net, June 2, 2025
"1.21.6-pre3" by Java Team. Minecraft.net, June 4, 2025
"1.21.6-pre4" by Java Team. Minecraft.net, June 10, 2025
"1.21.6-rc1" by Java Team. Minecraft.net, June 12, 2025

[name-5] "Our next game drop has a name: Get ready to Chase the Skies" by Sophie Austin. Minecraft.net, June 1, 2025

[1]

[2]

[3]

[4]

[5]