Features and Bug Fixes

Mounts of Mayhem

Nautilus

• When a Nautilus is fed a bucket of fish, the item will turn into a Water Bucket
• A tamed Nautilus will now be tempted by all fish
  • This includes buckets of fish
• A tamed Nautilus can now eat all fish
  • This includes buckets of fish

Spear

• Zombies and Piglins can now use the Spear for attackin

Zombie Horse

• The tooltip displayed when attempting to mount an untamed Zombie Horse has been changed from “Ride” to “Mount”
• Zombie Horse now has the correct spawn category of “monster”

Zombie Nautilus

• An untamed Zombie Nautilus can now be tempted by Pufferfish and Bucket of Pufferfish
• When a Zombie Nautilus is fed a Bucket of Fish, the item will turn into a Water Bucket
• A tamed Zombie Nautilus will now be tempted by all fish
  • This includes buckets of fish
• A tamed Zombie Nautilus can now eat all fish
  • This includes buckets of fish
• Zombie Nautilus no longer suffocates out of water

General

• Resolved an issue on Windows where shared worlds (those available to all players) did not load resource or behavior packs

Mobs

• Camels now take fall damage starting 4 blocks higher when walking or dashing
• Phantoms can no longer drown

Character Creator

• Users will no longer be prevented from loading into a world due to the Invalid Platform Skin error

Realms

• Fixed controller focus being cut off for the top of the Realms Timeline Opted-Out members list

User Interface

• Fixed issue with rendering custom blocks as “flying items” and with quick move animation
• Text input in certain inputs such as Book and Quill, will now prevent new lines if it will push text out of the input window
• Fix suggested commands in chat misplaced when resizing window

Technical Updates

AI Goals

• Added the “minecraft:behavior.use_kinetic_weapon” AI goal
  • Description:
    • Allows a mob to make use of items with a “minecraft:kinetic_weapon” item component
    • The mob will approach the target before using the weapon and charging with it
    • If the target gets too close, the mob will retreat and reposition before charging again
    • Once all “max_duration”s in the item’s “minecraft:kinetic_weapon” component have elapsed, the mob goes on cooldown and retreats before approaching again
  • Fields:
    • “approach_distance”: The distance to the target within which the mob begins using its kinetic weapon
    • “reposition_distance”: The distance the mob retreats to once the target is closer than the midpoint of the item’s “minecraft:kinetic_weapon” component’s minimum and maximum “reach”
    • “reposition_speed_multiplier”: Multiplier applied to the mob’s movement speed while repositioning
    • “cooldown_distance”: The distance the mob retreats to after all of the item’s “minecraft:kinetic_weapon” component’s “max_duration” values have elapsed
    • “cooldown_speed_multiplier”: Multiplier applied to the mob’s movement speed while on cooldown
    • “weapon_reach_multiplier”: Multiplier applied to the item’s “minecraft:kinetic_weapon” component’s “reach”
    • “weapon_min_speed_multiplier”: Multiplier applied to each “min_speed” and “min_relative_speed” condition in the item’s “minecraft:kinetic_weapon” component
    • “min_path_time”: Minimum base time, in seconds, before recalculating a new attack path to the target (before increases are applied)
    • “max_path_time”: Maximum base time, in seconds, before recalculating a new attack path to the target (before increases are applied)
    • “path_fail_time_increase”: Time, in seconds, added to the attack path recalculation interval when the mob cannot move along the current path
    • “inner_boundary_time_increase”: Time, in seconds, added to the attack path recalculation interval when the target is beyond “path_inner_boundary”
    • “outer_boundary_time_increase”: Time, in seconds, added to the attack path recalculation interval when the target is beyond “path_outer_boundary”
    • “path_inner_boundary”: Distance at which to increase attack path recalculation by “inner_boundary_time_increase”
    • “path_outer_boundary”: Distance at which to increase attack path recalculation by “outer_boundary_time_increase”
    • “speed_multiplier”: Multiplier applied to the mob’s movement speed when moving toward its target
    • “require_complete_path”: Specifies whether a full navigation path from the mob to the target is required
    • “track_target”: Allows the mob to track its target even if it lacks a hard-coded sensing component
    • “cooldown_time”: Cooldown time, in seconds, between consecutive attacks
    • “melee_fov”: Field of view, in degrees, used by the hard-coded sensing component to detect a valid attack target
    • “x_max_rotation”: Maximum rotation, in degrees, on the X-axis while the mob is trying to look at its target
    • “y_max_head_rotation”: Maximum rotation, in degrees, on the Y-axis while the mob is trying to look at its target
    • “random_stop_interval”: Defines a 1-in-N chance for the mob to stop its current attack, where N equals “random_stop_interval”
    • “attack_once”: Allows the mob to perform this melee attack behavior only once during its lifetime
  • Requirements:
    • The mob must have an item with the “minecraft:kinetic_weapon” item component
    • Must otherwise fulfill the same conditions as other melee attack goals
• “minecraft:behavior.melee_box_attack”, “minecraft:behavior.delayed_attack”, “minecraft:behavior.melee_attack” and “minecraft:behavior.stomp_attack” now correctly apply their “path_inner_boundary” field

API

• Added new module @minecraft/server-graphics to change graphics and rendering settings. The current set of APIs are associated with Atmospheric Scattering parameters in Vibrant Visuals
• The /clone command now fires onBreak beta API event for custom blocks overridden at source destination

Biomes

• The client side Molang queries query.entity_biome_has_all_tags, query.entity_biome_has_any_tags, and query.entity_biome_has_any_identifier no longer need the UpcomingCreatorFeatures toggle to be used

Block Rendering

• Fixed custom blocks rendered in Structure Block GUI

Block Components

• The option “alpha_masked_tint” in “minecraft:material_instances” is going back to requiring “Upcoming Creator Features” with the next preview
• Modified “minecraft:material_instances” block component
  • Field emissive renamed to shaded to better describe what the field does
  • Default value of shaded now true, when false the material ignores face_dimming and ambient occlusion
• Modified component "minecraft:material_instances"
  • Released field "shaded" formerly called "emissive" from experimental

Editor

• Fixed a bug that updated the rotation range to (-360~360) for Summon tool and Brush tool
• Updated the settings for UI Settings, Tutorial, Keyboard and Graphics mode, users need to manually save these settings
• Added new IModalDialog API to create scripted dialog windows. They can be registered from IModalDialogManager, and then activated like core dialogs
• Added new selection tool utility “Quick Move” mode that allows you to easily move the contents of a selection in any one direction. Can also specify a specific destination.

Entity Components

• Added new field protection_slot to minecraft:burns_in_daylight, which allows specifying an equipment slot that should provide protection from burning in daylight
  • Valid values are “slot.weapon.offhand”, “slot.armor.head”, “slot.armor.chest”, “slot.armor.legs”, “slot.armor.feet”, and “slot.armor.body”
  • Leaving this field unspecified will default to having the Head armor slot provide protection from burning in daylight
• In the “minecraft:ageable” and “minecraft:breedable” components, the “transform_to_item” field has been renamed to “result_item”
  • This field is now defined for each item entry in each component’s “items” list, enabling item-specific transformations on use
• Added “result_item” field to the items in the “minecraft:healable” and “minecraft:tameable” components
  • This field is defined for each item entry in the “items” list
  • On a successful interaction, the consumed item is replaced with this item

Items

• Fix issue with rendering custom blocks as “flying items”

Experimental Technical Updates

API

• Debug Drawing
  • Fixed a bug where timeLeft would cause the DebugShape to be removed immediately
  • Fixed a bug where the arrow head of the DebugArrow would look incorrect at certain rotations

API Infra

• Modernized AvailableCommandsPacket serialization. Added these constraints:
  • Chained Subcommand Data / Name max size set to 512 characters
  • Commands / Name max size set to 512 characters
  • Commands / Description max size set to 1000 characters
  • Commands / Chained Subcommand Indexes max size set to 250 elements
  • Commands / Overloads max size set to 250 elements
  • Constraints / Constraint Indices max size set to 250 elements

Blocks

• Added component minecraft:connection_rule behind the Upcoming Creator Features toggle which allows custom blocks to define whether other blocks with connection behavior – such as fences, walls, bars, and glass panes – can try to create a connection
• Added VanillaBlockTag minecraft:has_fence_connections that can be used to identify a custom block as a block that creates connections like a fence; this tag is required to create connections between custom and Vanilla fences
• The component and tag can be used along with the minecraft:connection block trait to make a custom fence that creates connections like a Vanilla fence. The following is an example of how they fit into the JSON of a custom fence block:

{
    "format_version": "1.21.130",
    "minecraft:block": {
        "description": {
            "identifier": "test:my_fence",
            "traits": {
                "minecraft:connection": {
                    "enabled_states": ["minecraft:cardinal_connections"]
                }
            }
        },
        "components": {
            "tag:minecraft:has_fence_connections": {},
            "minecraft:connection_rule": {
                "accepts_connections_from": "only_fences"
            }
        }
    }
}