Minecraft:Java Edition 26.3 Snapshot 1

26.3 Snapshot 1 (known as 26.3-snapshot-1 in the Minecraft:launcher) is the first snapshot for Minecraft:Java Edition 26.3, released on June 23, 2026,<ref>Template:Mcnet</ref> which adds features announced at Minecraft:Minecraft Live – May 2026 and more.

Additions

Blocks

Poplar wood set:

• File:Poplar Sapling.png Minecraft:Poplar sapling
  • Grows into any one of red, orange or yellow poplar trees.
• Template:Animate Minecraft:Poplar leaves
  • Comes in red, orange, and yellow varieties.
• File:Poplar Log.pngFile:Stripped Poplar Log.png Minecraft:Poplar log and Minecraft:stripped poplar log
• File:Poplar Wood.pngFile:Stripped Poplar Wood.png Minecraft:Poplar wood and Minecraft:stripped poplar wood
• File:Poplar Planks.png Minecraft:Poplar planks
  • File:Poplar Stairs.png Minecraft:Poplar stairs
  • File:Poplar Slab.png Minecraft:Poplar slab
  • Template:InvSpritewidth=32x32Minecraft:Poplar sign
  • Template:InvSpriteFile:Poplar Hanging Sign.pngMinecraft:Poplar hanging sign
  • File:Poplar Button.png Minecraft:Poplar button
  • File:Poplar Pressure Plate.png Minecraft:Poplar pressure plate
  • Template:InvSpriteFile:Poplar Door.pngMinecraft:Poplar door
  • File:Poplar Fence (EW).png Minecraft:Poplar fence
  • File:Poplar Fence Gate.png Minecraft:Poplar fence gate
  • File:Poplar Trapdoor.png Minecraft:Poplar trapdoor
  • width=32x32 Minecraft:Poplar shelf

File:Red Shrub.png Minecraft:Red shrub

• A Minecraft:bush-like plant block found in dappled forests.
• Using bone meal on a red shrub attempts to grow another shrub on a neighboring block.

Template:Animate Minecraft:Shelf mushroom

• A mushroom variant found on poplar trees.
• Comes in two sizes.
  • A small shelf mushroom can be grown into a large shelf mushroom with bone meal.
  • A large shelf mushroom drops two shelf mushroom items when broken.
• Is bouncy when fallen on by entities.
• Can be used to make Minecraft:mushroom stew.
• Can be traded for by a Minecraft:wandering trader.

Template:AnimateTemplate:Animate Minecraft:Wool stairs and slabs

• Comes in sixteen colors.
• Can be used to dampen sounds, like Minecraft:wool and Minecraft:carpets.

Non-mob entities

Template:InvSpriteFile:Poplar Boat.png Minecraft:Poplar boat

• A boat that is crafted using poplar planks.
• Template:InvSpriteFile:Poplar Boat with Chest.png Minecraft:Poplar boat with chest

World generation

Biomes

Template:BiomeLink

• An autumn-themed forest biome which can be found near cold biomes that consists of Minecraft:poplar trees, Minecraft:red shrubs, Minecraft:leaf litter, Minecraft:brown mushrooms, Minecraft:shelf mushrooms, and rarely Minecraft:spruce trees.
  • Fallen poplar trees generate more frequently than other trees.
• The following passive and neutral mobs spawn in the Dappled Forest, using their cold variants where applicable:
  • Minecraft:Sheep
  • Minecraft:Chicken
  • Minecraft:Cow
  • Minecraft:Pig
  • Minecraft:Rabbit
  • Minecraft:Fox

Features

Template:Animate Minecraft:Poplar tree

• A Minecraft:tree that generates in dappled forests.
• Comes in three different colors of leaves, orange, red, and yellow, randomly chosen at generation.
• Generate with Minecraft:leaf litter around or shelf mushrooms on them.
• File:Poplar Fallen Log.png Fallen poplar trees have shelf mushrooms on them.

Structures

File:Abandoned Camp.png Minecraft:Abandoned camp

• A structure that generates in the following biomes:
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
  • Template:BiomeLink
• Abandoned camps of each structure have their own different variants, consisting of Minecraft:wool stairs of various colors, or having Minecraft:leaves, Minecraft:cobwebs, a Minecraft:tree or a Minecraft:crop farm.

General

Minecraft:Data component format

• Template:Cd
  • Describes the pottery pattern stored on a stack.
  • Format:
    • namespaced ID pointing to an element of Template:Cd registry.

Tags

• Biome Tags
  • Added tags for biomes which will generate the respective abandoned camp variant:
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd
    • Template:Cd

• Block Tags
  • Added Template:Cd
    • Contains all poplar log blocks.
  • Added Template:Cd
    • Contains all wool stairs blocks.
  • Added Template:Cd
    • Contains all wool slabs blocks.
  • Added Template:Cd and Template:Cd to Template:Cd.
  • Added Template:Cd
    • Collection tag containing all types of ores.
  • Added Template:Cd
    • Collection tag containing all head and skull blocks.
  • Added Template:Cd
    • Collection tag containing all blocks that are considered to block motion in some way.
  • Added Template:Cd
    • Collection tag containing all blocks that are considered to block motion in some way, but excluding leaf blocks.
  • Added Template:Cd
    • Contains all blocks that entities are allowed to teleport to.
  • Added Template:Cd
    • Contains all blocks that Minecraft:dolphins cannot move through when jumping out of water.
  • Added Template:Cd
    • Contains all blocks that causes ice to melt into water if the ice is destroyed when placed above them.
  • Added Template:Cd
    • Contains all blocks that are taken into account for the Template:Cd heightmap.
  • Added Template:Cd
    • Contains all blocks that are taken into account for the Template:Cd heightmap.
  • Added Template:Cd
    • Contains all blocks that block the creation of fire by lava.
  • Added Template:Cd
    • Contains all blocks that block fluid flow.
  • Added Template:Cd
    • Contains all blocks that break when a fluid flows through them.
  • Added Template:Cd
    • Contains the blocks which can satisfy requirement for Poplar leaves to make ambient sound.

• Entity Tags
  • Added Template:Cd
    • Contains all entities which cannot be dismounted by items.
  • Added Template:Cd for all damage types that should not cause tamed wolves to attack their source in order to defend their owner.

• Item Tags
  • Added Template:Cd
    • Contains all poplar log items.
  • Added Template:Cd
    • Contains all wool stairs items.
  • Added Template:Cd
    • Contains all wool slabs items.
  • Added Template:Cd
    • Contains all mushroom items.
  • Added Template:Cd
    • Collection tag containing all types of ores.

Changes

Blocks

• Minecraft:Pottery sherds dropped from breaking a Minecraft:decorated pot will now preserve data.

Items

• Minecraft:Suspicious stew and Minecraft:mushroom stew can now be crafted with 2 of any mushroom.

Mobs

Sulfur cubes

• Changed the sounds of the "regular" sulfur cube archetype.

Command format

Template:Cmd

• Added new Template:Cd condition sub-command.
  • Counts the number of slots from the slot source that are present on the targeted block or entity.
  • The slot source will be evaluated with the Template:Cd loot type.
  • Syntax:
    • Template:Cmd
    • Template:Cmd
• The items condition sub-command now takes a slot source as argument instead of a slot.
  • The slot source will be evaluated with the Template:Cd loot type.
  • Syntax:
    • Template:Cmd
    • Template:Cmd

Template:Cmd

• When the amount of items passed to the give command is above limit, the command will now signal an error instead of just printing an error message and returning Template:Cd.

Template:Cmd

• Now takes a slot source as argument in place of anywhere a slot was previously used.
  • It will be evaluated with the Template:Cd loot type.
  • Can be a slot source in either inline or reference form.
  • Can be a slot source targeting multiple slots.
  • The Template:Cd sub-command has new semantics:
    • One by one in the order they are provided by the slot source, the contents of each destination slot are replaced with the corresponding source item.
    • When there are more destination slots than there are source items, the remaining slots are ignored.
      • Example: Template:Cd
    • When there are fewer destination slots than there are source items, the remaining items are ignored.
      • Example: Template:Cd
  • String notation slot ranges in the form Template:Cd or Template:Cd are still permitted.
    • Can be a single slot, such as Template:Cd
    • Can be multiple slots, such as Template:Cd
    • Acts as shorthand for a minecraft:slot_range slot source using that slot range.
      • Example: Template:Cd is the same as Template:Cd}
• The entity argument in the from entity item source can now be a selector targeting multiple entities.
  • When more than a single entity is targeted, the slots sourced from each are concatenated.
• Added new fill and override sub-commands, each with syntax identical to Template:Cmd.
  • Template:Cmd
    • Fills each destination slot with a source item.
    • When there are more destination slots than there are source items, the items repeat until every slot is filled.
      • Example: Template:Cd
  • Template:Cmd
    • Overrides the contents of each destination slot with the corresponding source item.
    • When there are more destination slots than there are source items, the remaining slots are cleared.
      • Example: Template:Cd (where Template:Cd represents an empty slot).

Template:Cmd

• The result of Template:Cmd and Template:Cmd subcommands now reflects the exact count of entities that have joined or left (i.e. excluding entities for which teams have not changed).

Template:Cmd

• The Template:Cd component in a raw chat message will only be resolved up to 64k times.

Template:Cmd

• The following subcommands will now signal an error instead of just printing an error message and returning Template:Cd:
  • Template:Cmd
  • Template:Cmd
  • Template:Cmd

General

Minecraft:Block entity

• Template:Cd
  • Field Template:Cd no longer stores a list of 4 item IDs. Instead, the new format is an object with 4 optional item stack fields named:
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd

Minecraft:Data component format

• Template:Cd
  • Instead of taking a list of 4 item IDs, this component now takes an object with 4 optional item stack fields named:
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd
• Template:Cd
  • The format of inline material definitions has been updated
  • Trim Materials
    • The format of elements in the Template:Cd registry has been updated:
      • Template:Cd has been replaced with palette - Palette Texture ID to be used for this material.
      • Template:Cd has been removed, overrides are now defined in the Resource Pack Equipment Asset.

Minecraft:Instrument definition

• The format of elements in the instrument registry have been updated:
  • Added the Template:Cd field - optional non-negative integer, amount of durability to consume on each use.
  • Updated the Template:Cd field - can now be Template:Cd for no cooldown.

Minecraft:Loot functions

• Added Template:Cd loot table type.
  • Currently used to evaluate slot sources with the Template:Cmd and Template:Cmd commands.
  • It takes the following parameters:
    • Template:Cd, the container or inventory being evaluated.
    • Template:Cd, the position at which the command was executed.
    • Template:Cd, the @s entity of the command being executed (optional).

Minecraft:Particles

• Fallen leaves particles no longer appear under Minecraft:spruce leaves.

Minecraft:Slot sources

• Slot sources can now be defined as files inside a datapack, within the Template:Cd folder.
  • Can be used in commands which take slot sources as arguments.
  • Can be used in inline slot sources using the Template:Cd type.
• Template:Cd is no longer restricted to only selecting non-empty slots.
• Added Template:Cd
  • Uses the referenced slot source.
  • Fields:
    • Template:Cd - the namespaced id of the slot source.
• Changed Template:Cd
  • The Template:Cd field has a new valid type container, which sources slots from a container or inventory provided through loot context.
  • The Template:Cd field is now optional.
    • Defaults to the container source type when absent.

Minecraft:World generation

• Features
  • The Template:Cd registry has moved to Template:Cd and configuration is now done inline in the root object rather than separated into a config field.
  • Added Template:Cd feature type
    • Places the Minecraft:end podium.
    • Two feature instances are now used to place the podium from in-game events:
      • Template:Cd
      • Template:Cd
    • Fields:
      • Template:Cd: boolean field controlling if the portal is active.
  • Template:Cd feature type
    • Added Template:Cd tree decorator type.
      • Places Minecraft:shelf mushrooms on logs with the specified probability.
      • Format: object with fields:
        • Template:Cd - float (between Template:Cd and Template:Cd), the probability that any Shelf Mushrooms will be placed for a given feature.
  • Added Template:Cd foliage placer type
    • Places leaves blocks for Minecraft:poplar trees in a rhombus shape in one of two possible directions
    • Format: object with fields:
      • Template:Cd - int provider (between Template:Cd and Template:Cd), the height of the foliage.
      • Template:Cd - float (between Template:Cd and Template:Cd), the chance for blocks to be randomly removed at the edge of the foliage.
  • Added Template:Cd trunk placer type
    • Places log blocks for poplar trees in a straight shape with branches by the start of the foliage.
    • Format:
      • Template:Cd - int provider (between Template:Cd and Template:Cd), the height of the trunk above the branches.
      • Template:Cd - int provider (between Template:Cd and Template:Cd), the amount of branches to create by the foliage.

• Minecraft:Noise settings
  • The Template:Cd field has been renamed to Template:Cd
    • Format: inline Material Rule or Material Rule ID reference.

• Material Rule Registry
  • A new data-driven registry has been introduced, loaded from data/<namespace>/worldgen/material_rule/<id>.json.
  • Elements in this registry define a pipeline for selecting what base block to place in the world at a given position.
  • The format is identical to that which was formerly written in the Template:Cd field within noise settings files, with the following extensions:
    • Material rules can now be specified either inline (as previously), or as an ID reference to an element in the Template:Cd registry.
    • Material conditions can also now be specified as an ID reference to an element in the Template:Cd registry.

• Material Condition Registry
  • A new data-driven registry has been introduced, loaded from data/<namespace>/worldgen/material_condition/<id>.json.
  • Elements in this registry define a condition that can be referenced within a Material Rule pipeline (e.g. testing biome or surface depth).
  • The format is identical to that which was formerly written within the condition Material Rule type, with the following extension:
    • Material Conditions can also now be specified as an ID reference to an element in the Template:Cd registry.

• Structure Placements
  • Added Template:Cd
  • New structure placement that places a single instance of the structure at the dimension origin.
    • The dimension origin is defined as the Template:Cd for noise settings based dimensions, otherwise Chunk (0, 0).
  • No additional fields.

• Rule Tests
  • These are the predicates used by ore Features (Template:Cd), and rule Structure Processors (Template:Cd and Template:Cd).
  • Added test type minecraft:height_match
  • This checks the y-level of a block, returning true only if it's higher than or equal to Template:Cd and lower than or equal to .Template:Cd
  • Format: object with fields:
    • • Template:Cd - int, the minimum y value of allowed blocks (inclusive)
      • Template:Cd - int, the maximum y value of allowed blocks (inclusive)
  • Added rule test type Template:Cd
    • This checks a list of Rule Tests for whether all of them return true for the same block.
    • Format: object with fields:
      • Template:Cd - list of Rule Tests, the rules to test the block against.

Trivia

• The Template:Bug fix in this snapshot marks the longest period of time between a bug being reported and being patched, at nearly 14 years.