Minecraft:Java Edition 26.4 Snapshot 6

26.4 Snapshot 6 (known as 26.4-snapshot-6 in the Minecraft:launcher) is the sixth Minecraft:snapshot for Minecraft:Java Edition 26.4, released on October 27, 2026,<ref>Template:Mcnet</ref> which adds the Minecraft:snow bricks block set and the cold sulfur cube archetype, and fixes bugs.

Additions

Blocks

File:Snow Bricks JE1.png Minecraft:Snow bricks

• A new kind of brick made of Minecraft:snow.
• Crafted using a 2×2 square of snow blocks.
• Have a slab, stairs, and wall variant.
  • A Minecraft:stonecutter cannot be used to craft snow brick slabs, stairs, and walls.
• Snow bricks belong to the Fast Sliding Minecraft:sulfur cube archetype.
• The correct tool to mine snow bricks is a Minecraft:shovel, and will only drop themselves if mined with one.

File:Snow Brick Slab JE1.png Minecraft:Snow brick slab

• The slab variant of snow bricks.

File:Snow Brick Stairs (N) JE1.png Minecraft:Snow brick stairs

• The stair variant of snow bricks.

File:Snow Brick Wall (ewU) JE1.png Minecraft:Snow brick wall

• Wall variant of snow bricks.

General

Minecraft:Sulfur cube archetype definition

• Added new Template:Cd field — an optional list of location-based effects.
  • The format for each entry is exactly the same as a location-based enchantment effect.
  • Level-based values in this definition will always be evaluated with level Template:Cd.

Tags

• Entity type tags
  • Added Template:Cd for entity types that are considered swimming in water.
  • Added Template:Cd for entity types that are considered flying.
• Fluid tags
  • Added Template:Cd for fluids that players can swim in.
• Item tags
  • Added Template:Cd for items that can be placed inside the Minecraft:sulfur cube that turns it into a cold sulfur cube archetype.

Changes

Blocks

Minecraft:Brittle ice

• Will no longer crack when a Minecraft:stray is standing on top of it.

Minecraft:Chiseled packed ice, Minecraft:packed ice bricks, slab, stairs, and wall

• All packed ice brick variants now require a pickaxe to drop themselves.

Minecraft:Ice crystal

• Has a chance of playing an ambient sound if it has a block of Minecraft:packed ice below.

Mobs

General

• Mobs falling through lava may take slightly less fall damage in some cases.

Minecraft:Sulfur cube

• Added the "Cold" archetype, with similar properties to "Fast Sliding" except it is buoyant.
  • Used when the sulfur cube absorbs a Minecraft:blue ice block.
  • Floats and replaces water below it with a disk of Minecraft:frosted ice when it moves, similar to the Minecraft:Frost Walker enchantment.
    • Will only place frosted ice if the sulfur cube starts its movement while it is on ground.
    • Air blocks above the water block are required for frosted ice placement.

General

Minecraft:Data pack

• The Minecraft:pack format version is now Template:Cd.

Minecraft:Density functions

• Changed Template:Cd
  • The Template:Cd and Template:Cd fields now additionally accept a Vertical Anchor, as long as axis is Template:Cd.
• Added Template:Cd
  • Samples an input function by applying an offset to each sampled coordinate.
    • Note: if the offsets change rapidly by large amount, performance may degrade significantly. This function should be used sparingly.
  • Format: object with fields:
    • Template:Cd — density function, the input function to sample.
    • Template:Cd — density function, the offset to apply to sampled X coordinates.
      • The result is implicitly truncated to an integer.
      • If not specified, defaults to: Template:Cd.
    • Template:Cd — density function, the offset to apply to sampled Y coordinates.
      • The result is implicitly truncated to an integer.
      • If not specified, defaults to: Template:Cd.
    • Template:Cd — density function, the offset to apply to sampled Z coordinates.
      • The result is implicitly truncated to an integer.
      • If not specified, defaults to: Template:Cd.
  • At least one of Template:Cd, Template:Cd, or Template:Cd must be specified.

Launcher metadata

• Tweaked default JVM options in the launcher metadata for this version.
  • The launcher will thus pass arguments to set the player's JVM heap size based on their system memory, using up to 25% with a maximum of 4 GB.

Minecraft:Resource pack

• The version is now Template:Cd.

Minecraft:Sounds

• Added new sound events: Template:Cd

Minecraft:Structure pool elements

• Added optional Template:Cd field
  • Limits the placement of a structure pool element this by sampling a density function at the corners of its bounding box.
  • Format: list of objects with fields:
    • Template:Cd — the density function to sample at the bounding box' corner.
    • Template:Cd — inclusive range of doubles, a corner's sampled density within this range counts as "inside".
    • Template:Cd — integer between Template:Cd, and Template:Cd, the padding of the bounding box before sampling its corners.
      • If not present, defaults to Template:Cd.
    • Template:Cd — one of Template:Cd, Template:Cd, or Template:Cd, which corners to check.
      • If not present, defaults to Template:Cd.
    • Template:Cd — range between Template:Cd, and Template:Cd, the number of corners that must be inside Template:Cd for the check to pass.

Minecraft:Textures

• Block models
  • Removed block models: Template:Cd
• Block sprites
  • Added new block textures: Template:Cd