Minecraft:Bedrock Edition Preview 26.20.23/Upstream

Preview 26.20.23 (Windows, iOS, iPadOS, Xbox, PlayStation), or Beta 26.20.24 (ChromeOS, Android) is the fourth beta/Preview for Minecraft:Bedrock Edition 26.20, released on March 31, 2026,<ref>Template:Cite</ref> which adds the Minecraft:sulfur caves, Minecraft:sulfur and Minecraft:cinnabar block sets, and Minecraft:sulfur cube behind an experiment, and fixes bugs.

Changes

General

Minecraft:Mobs

• Minecraft:Ravagers can only destroy Minecraft:leaves and Minecraft:crops when running into them, and can no longer destroy Minecraft:snow, Minecraft:turtle eggs or various plant blocks. This better matches their behavior in Template:JE.
  • Unlike Template:JE, they are still able to destroy Minecraft:pumpkin stems and Minecraft:melon stems.

Graphical

• Template:Cd and Template:Cd are now required in the Template:Cd version of the atmospherics config file.
• Accessing atmospherics graphics overrrides through Minecraft:scripting is now done from Template:Cd.

Minecraft:Realms

• Added functionality for the "Resource packs" and "Behavior packs" tabs in the new Minecraft:edit world screen.
• Replaced the development notice for the upcoming "Admin log" with a message that settings, community, and world changes will be logged here, but it is not functional yet.

Technical

AI Goals

• Made schemas for the following goals stricter when parsing and will fail to load an entity json that has invalid data in versions 1.26.20 and newer:
  • Template:Cd
  • Template:Cd
  • Template:Cd
• Refactored Template:Cd to Template:Cd. The following fields have been added to the behavior:
  • Template:Cd: If Template:Cd, the mob will always search for a valid leader to follow if none is found or current leader is not valid anymore.
  • Template:Cd: The filters to use when determining if a mob is a suitable leader or not.
  • Template:Cd: (default: Template:Cd) Number of ticks that must pass before a new search is initiated after a target is not found, lost, or becomes invalid.

API

• Added beta read-only property Template:Cd to Template:Cd that returns a Template:Cd object Template:Cd or undefined if the player is not in a party.
• Added settings under "Creator" section to configure text filtering debug delay.
• Moved Template:Cd from Template:Cd to Template:Cd.
• Moved Template:Cd from Template:Cd to Template:Cd.

Biomes

• Added Template:Cd field to Biome Json API.
  • Sub Surface Builders allow specifying a Template:Cd to be applied to biomes located underneath the Overworld's terrain surface.
• Added Template:Cd sub surface builder type, which places continuous bands of blocks according to a noise distribution.
  • This surface builder has the following parameters:
    • Template:Cd: a list of blocks that the surface builder is not allowed to replace.
      • Leaving this list empty or unspecified will allow the replacement of any block type.
    • Template:Cd: a list of block names that will be sampled according to a Perlin noise distribution.
      • Specifying Template:Cd is permitted, and will result in the original block not being replaced, meaning it is possible to adjust the density/intensity of block replacement in the biome using this surface builder type.

Entity components

• Added the Template:Cd component, which controls how an entity bounces when colliding with surfaces.
  • Contains a single field, Template:Cd, defining the bounce strength:
    • Template:Cd results in no bounce.
    • Template:Cd results in a perfectly elastic collision with full energy preservation.
  • If the component is not present, bounciness defaults to Template:Cd.
  • Only available if the entity's Template:Cd is set to Template:Cd.
• Added the Template:Cd component, which controls how an entity applies knockback to a target.
  • Template:Cd defines how much the target is hit backwards.
    • Defaults to Template:Cd if not defined.
  • Template:Cd defines how much the target is hit upwards.
    • Defaults to Template:Cd if not defined.
  • Template:Cd defines the target's maximum vertical upwards velocity after the target's knockback rules have been evaluated.
    • Defaults to Template:Cd if not defined.
  • Template:Cd defines whether the target should be fully immersed in water for the knockback rules to apply.
    • Defaults to Template:Cd if not defined.
• Added the Template:Cd component.
  • The higher its value, the more air drag affects an entity:
    • Template:Cd means no air drag.
    • Template:Cd means regular air drag.
    • Template:Cd means double air drag.
  • Only available if the entity's Template:Cd is set to Template:Cd.
• The Template:Cd component now accepts negative values down to a minimum of Template:Cd, resulting in knockback being increased instead of being diminished.

Network Protocol

• Added the bool Template:Cd to the Packet Template:Cd.

Experimental

These additions and changes are accessible by enabling the "Beta APIs", "Upcoming Creator Features", "Render Dragon Features for Creators", "Experimental Voxel Shape Features", the new "Drop 2 of 2026", and "Experimental Custom Projectile Features" Minecraft:experimental toggles.

Additions

Blocks

File:Cinnabar.png Minecraft:Cinnabar

• A red-colored block that generates in sulfur caves.
• Used to Minecraft:craft or cut cinnabar width=32x32 stairs, width=32x32 slabs, width=32x32 walls, width=32x32 Minecraft:polished cinnabar, width=32x32 stairs, width=32x32 slabs, width=32x32 walls, width=32x32 Minecraft:cinnabar bricks, width=32x32 brick stairs, width=32x32 brick slabs, width=32x32 brick walls, and width=32x32 Minecraft:chiseled cinnabar.

File:Sulfur.png Minecraft:Sulfur

• A yellow-colored block that generates in sulfur caves.
• Used to craft or cut sulfur width=32x32 stairs, width=32x32 slabs, width=32x32 walls, width=32x32 Minecraft:polished sulfur, width=32x32 stairs, width=32x32 slabs, width=32x32 walls, width=32x32 Minecraft:sulfur bricks, width=32x32 brick stairs, width=32x32 brick slabs, width=32x32 brick walls, and width=32x32 Minecraft:chiseled sulfur.

File:Potent Sulfur.png Minecraft:Potent sulfur

• A variant of sulfur that emits bubbles when placed underwater. It also produces a cluster of noxious gas particles in the water's surface.
• Players and mobs get Minecraft:Nausea when they enter water that is near and directly or indirectly connected to the block.

Items

File:Sulfur Cube Spawn Egg.png Minecraft:Sulfur cube spawn egg

• Used to spawn a sulfur cube.

File:Bucket of Sulfur Cube.png Minecraft:Bucket of sulfur cube

• Obtained by Template:Ctrl a Minecraft:bucket on a Minecraft:sulfur cube.
• When used, spawns a sulfur cube.

Mobs

File:Sulfur Cube.png Minecraft:Sulfur cube

• A Minecraft:passive slime-like mob that spawns in sulfur caves.
• Immune to fall damage.
• When killed, it will split into 2 small cubes, like other slime-like mobs.
  • Unlike the Minecraft:slime and Minecraft:magma cube, the small versions can grow up into the large version, like how a Minecraft:baby mob works.
• It is attracted to the dropped item form of full blocks. The cube can pick up a block, or a player can Template:Ctrl a full block on the cube, causing the cube to absorb it into its body.
  • File:Sulfur Cube Stone.png In this state, they become immobile and cannot be damaged by most entities. Instead it will be knocked back when attacked.
    • The knockback also depends on the damage that would have been dealt, with stronger attacks sending the cube further.
  • Minecraft:Shearing it removes and drops the block, reverting back to normal.
  • Depending on the full block, they will behave differently when punched while in its immobile state, examples are:
    • Minecraft:Blocks of iron make it heavy, i.e. it will have higher gravity.
    • Minecraft:Wool makes it floaty, i.e. it will have lower gravity.
    • Wooden Minecraft:logs and Minecraft:stems make it bouncy.
    • Minecraft:Ice reduces its friction, making it slide more.
• Can be caught in Minecraft:buckets to move it.

Technical

Items

• Added tags for Minecraft:sulfur cubes to make use of for physics determination and absorbing
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd
  • Template:Cd

World generation

Template:BiomeLink

• A cave biome composed of Minecraft:sulfur and Minecraft:cinnabar blocks.
• Minecraft:Sulfur cubes spawn here.
• Have a high concentration of Minecraft:glow lichen.
• Minecraft:Sulfur pools also generate here.

Template:EnvLink

• Greenish pools that generate in sulfur caves.
• Consists of a body of water surrounded by sulfur blocks and cinnabar with Minecraft:potent sulfur generating at the bottom, which inflicts Minecraft:Nausea to mobs in the pool.

Template:EnvLink

• A pile of Minecraft:sulfur with a small sulfur pool on the surface.
• Generates on the surface indicating the presence of sulfur caves below.

Changes

Technical

Minecraft:Add-Ons

• Added experimental toggle "Custom Projectiles" which enables improvements around custom projectiles in add-ons without the use of runtime identifiers.
  • Adds Template:Cd property to minecraft:projectile component for easier trajectory control.
  • Template:Cd goal now applies projectile offsets relative to entity rotation.
  • Custom projectiles now:
    • Can be reflected.
    • Update their owner upon launch and reflection.
    • No longer collide with their owner on launch.
    • Apply their offsets on launch.
    • Remain at their point of impact when using Template:Cd.

Minecraft:API

• Added Template:Cd to Template:Cd in Template:Cd could be invisible.
• Added the Script Entity property Template:Cd to Template:Cd.
• Added the Script Entity property Template:Cd to Template:Cd.
• Added Template:Cd to Template:Cd.
• Added Template:Cd support to entity heal before/after events.
• Added Template:Cd to Template:Cd - an optional string prepended to the player's name in chat messages.
• Added Template:Cd to Template:Cd - an optional string appended to the player's name in chat messages.
• Added Template:Cd to Template:Cd - a read-only property returning the composed chat name (chatNamePrefix + name + chatNameSuffix).
• Added Template:Cd to Template:Cd - an optional string prepended to the text of the player's chat messages, useful for applying color/formatting codes.
• Added Template:Cd to Template:Cd using Template:Cd allows custom components to read a state change.
• Added Template:Cd Boolean property Template:Cd to Template:Cd.

DDUI

• Class Observable.
  • Added the method Template:Cd. Gets filtered data from the Observable (only available for strings). Template:Cd
  • Added the enum Template:Cd. An enum representing the errors that can occur during text filtering. This is used at Template:Cd to provide more context about the filtering process.

Scripting

• Added scripting method that allows creators to check the snow logging behavior of a block.

Voxel Shapes

• Added non-unit-cube voxel shapes for 70 blocks when the Voxel Shapes experiment is enabled.
  • These shapes improve face culling so that hidden faces between adjacent blocks are correctly removed.
    • Slab shapes (62 blocks)
    • Other shapes (8 blocks): Minecraft:calibrated sculk sensor, Minecraft:end portal frame, Minecraft:comparator (powered and unpowered), Minecraft:repeater (powered and unpowered), Minecraft:snow, and Minecraft:stonecutter.

Fixes

Template:Fixes Other

• Fixed custom components not parsing with modern block definition loader.
• Pixelated shadows in Minecraft:Vibrant Visuals no longer experience artifacts in Xbox One X/S.
• Fixed empty space appearing on screens with text input when using a physical keyboard on iOS.
• Fixed several issues with text input on iOS when using a physical keyboard.
• Fixed a bug where Minecraft:minecarts on the same track would not properly transfer momentum when colliding with each other.
• Fixed incorrect variation in block lighting during Minecraft:slime jump animations in Vibrant Visuals.
• Fixed a crashing issue when going back from Realms Plan Picker screen before it finishes loading.
• Fixed a bug where removing the movement controller from an entity entirely did not reset the input velocity given by the controller.
• Fixed a bug that caused the Template:Cd AI behavior to sometimes fail to exit after killing a target.
• Fixed actor textures not loading properly when applying packs with an older min engine version.
• Fixed a bug when Template:Cd on a Template:Cd or Template:Cd would not update if the attached entity was unloaded and reloaded.
• Fixed a bug where Template:Cd in Template:Cd could be invisible.
• Fixed slab face culling so that the top face of a block directly above or below a slab is now correctly culled against the slab's shape.
• Blocks with a missing Template:Cd will correctly be accepted again instead of giving the error: "Menu Category should not have an empty value."