Minecraft 1.21.2 Snapshot 24w36a Server Hosting

Known Issues

• Ender Pearls will not teleport you to the right location

Experimental Features

Bundles

• When a Bundle is used in the hotbar, one group of items is emptied at a time instead of everything being emptied at once

Changes

• Squid Spawn Eggs now only spawn adult Squids
  • There is a 5% chance of Squids spawned in groups in the wild to be a baby
• When a mob converts from one type to another (ex: Piglin to Zombified Piglin), the health of the converted mob is set to the same percentage of max health as the original mob had before conversion

Technical Changes

• The Data Pack version is now 52
• Resource Pack version is now 37

Data Pack Version 52

Tags

Block Tags

• bats_spawnable_on: Blocks that bats can spawn on

Item Tags

• Added new tags to control which items can be used to repair various armor sets:
  • repairs_leather_armor
  • repairs_iron_armor
  • repairs_chain_armor
  • repairs_gold_armor
  • repairs_diamond_armor
  • repairs_netherite_armor
  • repairs_turtle_helmet
  • repairs_wolf_armor
• piglin_safe_armor: Items that, when worn by a player, will cause Piglins to not get angry

Changed Item Components

minecraft:item_name

This component is now always present on every item

New Item Components

minecraft:item_model

• Controls item model
• Present on every item
• Format: namespaced id
  • namespace:id will reference model /assets/<namespace>/models/item/<id>

minecraft:equippable

• If present, this item can be equipped by players in the selected slot
• When right-clicking with an item with this component, it will be swapped into the appropriate slot
• Format: object with fields
  • slot: one of head, chest, legs, feet, body, mainhand, or offhand
  • equip_sound (optional): Sound event to play when the item is equipped
    • If not specified, the default armor equip sound will be played
  • model (optional): namespaced ID of the equipment model to use when equipped
    • These model definitions are loaded from Resource Packs
    • If not specified, will fall back to rendering as the item itself when in the head slot (or no rendering if not applicable)
  • allowed_entities (optional): Entity ID, Entity Tag, or list of Entity IDs to limit which entities can equip this item
    • If not specified, any entity (that can wear this kind of equipment) is allowed to equip this item
  • dispensable: boolean (default: true), whether the item can be equipped by using a Dispenser
    • If the item type has special dispenser behavior, this will have no effect
  • e.g. equippable={slot:’chest’,equip_sound:’item.armor.equip_chain’}

minecraft:glider

• If present, this item will allow players to glide (as with Elytra) when equipped
• Format: empty object
  • e.g. glider={}

minecraft:tooltip_style

• If present, this item can use custom sprites for its tooltip background and frame
• Format: namespaced ID for a tooltip style
  • A tooltip style of namespace:path will use sprites with IDs:
    • <namespace>:tooltip/<path>_background and <namespace>:tooltip/<path>_frame
  • e.g. tooltip_style=’minecraft:special_sword’

Predicates

• Added a new field in the Player sub-predicate, input, that can be used to detect which movement keys the player is pressing
• If specified the predicate matches with the corresponding keybind that the player is pressing; it supports detecting the following input:
  • forward : boolean (optional)
  • backward : boolean (optional)
  • left : boolean (optional)
  • right : boolean (optional)
  • jump : boolean (optional)
  • sneak : boolean (optional)
  • sprint : boolean (optional)

Resource Pack Version 37

• Introduced equipment models
• Textures for entity equipment have been moved and renamed
• The tooltip background and frame may now be customized by replacing sprites:
  • tooltip/background: The background of the tooltip
  • tooltip/frame: The frame appearing around the tooltip
  • Items with a custom tooltip_style component will use sprites with IDs:
    • <namespace>:tooltip/<path>_background and <namespace>:tooltip/<path>_frame
• The nine_slice GUI sprite scaling mode has a new optional boolean property: stretch_inner
  • If true, the inner parts of the texture (i.e. not the corners) will be stretched instead of tiled
  • If not specified, defaults to false as before

Item Models

• All item models can now use the broken property in model overrides that was previously limited to just Elytra
  • This will have a value of 1 if the item has 1 durability left, or 0 otherwise

Custom Equipment Models

The appearance of equipment when equipped by players or certain mobs can now be customized by defining ‘equipment models’ in the Resource Pack.

• Equipment model definitions are loaded from assets/<namespace>/models/equipment/<path>.json
  • These can then be referenced by the equippable component with a model id of namespace:path
• The model definition is an object with fields: wolf_body, horse_body, llama_body, humanoid, humanoid_leggings, wings
  • All fields are optional, and can be used to specify a list of layers for the given model layer type
  • Each field contains list of layer objects:
    • texture: namespaced texture location for this layer
      • namespace:path will resolve to assets/<namespace>/textures/entity/equipment/<layer_type>/<path>.png
    • dyeable: object with fields (optional), specifying how this layer behaves when dyed (in the dyeable item tag, and has dyed_color component)
      • color_when_undyed: rgb color int (optional)
      • If specified, this layer will be tinted by the color contained in the dyed_color component
        • If the item is not dyeable or not dyed, it will be tinted based on the color specified by color_when_undyed
        • If color_when_undyed is not specified and the item is not dyed, the layer will be hidden
    • use_player_texture: boolean (default: false), true if this layer texture should be overridden by a texture given by the player
      • Only used for wings layers, which will override with the player’s custom Elytra texture

A model definition specifying both player and horse armor layers might look like:

{
  "layers": {
    "horse_body": [
      { "texture": "minecraft:iron" }
    ],
    "humanoid": [
      { "texture": "minecraft:iron" }
    ],
    "humanoid_leggings": [
      { "texture": "minecraft:iron" }
    ]
  }
}

Trims

• All equippable items with an equipment model defined support rendering trims, based on the trim component
• Trim textures will be loaded from the appropriate folder in the textures/trims/entity directory
  • For example, armor with wolf_body layers will fetch trims from textures/trims/entity/wolf_body

Moved Textures

• All equipment-related textures have been moved to subfolders of the textures/entity/equipment directory
  • Player armor textures have been moved to textures/entity/equipment/humanoid and textures/entity/equipment/humanoid_leggings
    • <material>_layer_1 textures have been renamed to <material>, and moved into the humanoid subdirectory
    • <material>_layer_2 textures have been renamed to <material>, and moved into the humanoid_leggings subdirectory
    • leather_layer_1_overlay and leather_layer_2_overlay textures have been renamed to leather_overlay in their respective subdirectories
  • wolf_armor and wolf_armor_overlay textures have moved to textures/entity/equipment/wolf_body/ and have been renamed to armadillo_scute and armadillo_scute_overlay respectively
  • turtle_layer_1 has been renamed to turtle_scute
  • Llama decor textures have been moved to textures/entity/equipment/llama_body
  • Horse armor textures have been moved to textures/entity/equipment/horse_body
  • The Elytra texture has been moved to textures/entity/equipment/wings/elytra
• Armor trim textures have also been moved to match the folder structure of the regular equipment textures
  • Textures in textures/trims/models/armor have been divided between textures/trims/entity/humanoid and textures/trims/entity/humanoid_leggings
  • For leggings textures, the _leggings suffix is dropped

Fixed bugs in 24w36a

• MC-16829 – The horse armor model does not show the enchantment glint effect
• MC-38022 – Order of rendering translucent block faces fails to update with camera position
• MC-88967 – Most NBT tags are not kept when a mob converts to another mob
• MC-92875 – Collisionless blocks ignore entities with high velocity
• MC-135898 – Teams are not retained when a mob converts to another mob
• MC-196556 – When projectiles (such as arrows and tridents) move too fast, they can’t be teleported by portals and end gateways
• MC-196964 – Fall damage is reset when an entity converts to another entity
• MC-230317 – Lead disappears when mooshroom cow is sheared
• MC-250924 – Goat horns are missing sounds
• MC-259936 – Equipping armor in hand via right-click equips entire stack
• MC-261666 – Armor given to Villagers is lost when they convert to Zombie Villagers
• MC-270842 – Scores are not kept when a mob converts to another mob
• MC-271826 – Armor default attribute modifier component can’t be removed
• MC-275011 – Instant mine does not work when standing inside of cobwebs
• MC-275228 – You can duplicate items in your creative hotbar
• MC-275239 – Item duplication while a screen is opened (Creative Mode)
• MC-275298 – Blocks with special collision behavior have a larger detection range than previously
• MC-275299 – Crafting using Ctrl + Drop key crafts the incorrect amount of items
• MC-275344 – Sweet Berry Bushes deal damage inconsistently
• MC-275345 – Inventory bug that causes items to be constantly shuffled
• MC-275416 – Baby squid or baby glow squid produces ink particles that are too far away from itself
• MC-275418 – Feeding baby dolphins won’t speed up their growth
• MC-275437 – Fast moving entities freeze the server which causes watchdog crash
• MC-275445 – Specifying the size of a target in post effect shaders fails
• MC-275450 – Player Motion data no longer updates while riding another entity
• MC-275455 – Player motion is no longer retained on relative teleportation
• MC-275462 – Bats can spawn in unusual places, such as in woodland mansions and beneath trees
• MC-275497 – The repairable data component does not exist in armor items by default
• MC-275537 – Sliding down honey blocks is slower than in previous versions
• MC-275622 – Minecarts with TNT are more volatile than in previous releases
• MC-275624 – Redstone wire with custom model unexpectedly appears green
• MC-275638 – It is still possible to go through portals without being teleported when going quickly enough by throwing riptide tridents
• MC-275642 – Baby dolphins do not spawn naturally
• MC-275655 – Entity rotation does not visually update when using the teleport command until the world is reloaded
• MC-275745 – A scoreboard objective with display mode below_name renders right behind the player’s name
• MC-275767 – Camera is shaky when riding an entity that is being constantly teleported
• MC-275770 – Guardian beam attacks stay yellow and do not shift colors anymore
• MC-276027 – Chestplates and Boots on Armor Stands render the helmet overlay texture
• MC-276030 – The blue highlighted text background for signs is gone
• MC-276064 – Tall grass generated from bone mealing a grass block will delete the 2nd block above it
• MC-276122 – Soul sand and magma block bubble columns don’t move the player vertically in creative mode when not flying
• MC-276132 – Translucency sorting seems to be slightly broken
• MC-276179 – Zombie villagers don’t raise their arms to attack again
• MC-276204 – Dolphins and axolotls keep trying to swim into the seabed