Bedrock Edition Preview 1.21.100.20

Preview 1.21.100.20
Edition	Bedrock Edition
Release date	June 10, 2025
Server version	1.21.100.20
Editor version	1.0.1
Build version	32724063
Internal version	Windows, Xbox: 1.21.10020.0; Android: 1.21.100.20
Version code	Android:; 952110020 (armeabi-v7a, 34); 962110020 (x86, 34); 972110020 (arm64-v8a, 34); 982110020 (x86_64, 34)
Type	Preview
Preview for	1.21.100
Downloads	Server; Windows; Linux
Protocol version	823
Preview 1.21.100.20	Preview 1.21.100.21 ►

Beta 1.21.100.20 (ChromeOS, Android) or Preview 1.21.100.20 (Windows, iOS, iPadOS, Xbox, PlayStation) is the first beta/Preview version for Bedrock Edition 1.21.100, released on June 10, 2025,^[1] which fixes bugs and makes some small changes to improve parity with Java Edition.

Additions

General

Accessibility

Added screen narrator enumeration to UI buttons when adding a new server.

Changes

Commands format

World spawn

The world spawn can now be set in the End using /spawnpoint.

/locate

/locate biome command now requires that the biome's namespace is specified (ex: minecraft:plains instead of just plains). Auto-complete suggestions for this command will now include namespaces.

Mobs

Animals

The ambient sound interval for all animals has been adjusted to 6 seconds, matching Java Edition.

Ghasts

The ambient sound interval for all ghasts has been adjusted to 4 seconds, matching Java Edition.

Snowballs, Ender Pearls, Ender Eyes, Experience Bottles, Splash Potions, Lingering Potions, and Ice Bombs

Their sprites, when rendered in the world, now have the correct scaling and positional offset.
They now match Java Edition, and also match better with their collider.

General

This section is missing information about: The which marketplace-related menus were changed..

Please expand the section to include this information. Further details may exist on the talk page.

UI

"Owned" or "Download" is now displayed on items the player owns outside of the "My Library" page.
The Marketplace Pass chevron will now show on items that the user owns while on normal Marketplace pages. Not on the inventory. Owned/Download text moved to the right.
Updated Marketplace Pass chevron to show on items in the inventory.
Moved the "Owned"/"Download" text to the right side.

Audio Settings Screen

The audio default volumes have been updated.
Audio settings have been updated with a brand-new look and improved navigation:
- Each setting now includes a helpful description, making it easier to understand what it does.
- Improved interaction with sliders that are now smoother and more responsive than before.

World generation

Trees

Trees now generate more sparsely in groves.
Trees now generate more frequently in snowy plains.

Frozen Ocean

Its surface is no longer entirely covered by ice, and now features patches of open water.
Icebergs in frozen ocean biomes now generate with a shape and frequency that more closely matches Java Edition.

Deep Frozen Ocean

Its surface is no longer covered by ice and now consists entirely of open water.

Old Growth Spruce Taiga and Old Growth Pine Taiga

Increased the size of the podzol patches generated beneath mega pines and mega spruces.
- This change affects both world generation and trees grown by players.

Mushrooms

Mushrooms now properly generate under trees in swamps and other biomes where they naturally generate.

Seagrass

Seagrass no longer pokes through ice when it generates in shallow water in biomes that have ice on the water's surface.

Technical

Add-Ons and Script Engine

Custom biome names are no longer implied by their filenames. Biome names are explicitly specified via the identifier property under the description sub-object of their JSON definition.
Biome identifiers must now be namespaced (ex: minecraft:plains). Client biomes with a format version lower than 1.21.90 will have their identifier automatically prefixed minecraft: when loaded if no namespace is already specified.
Updated biome documentation to match updated biome JSON formatting and requirements.

API

The message parameter of the setText method on BlockSignComponent no longer accepts a RawText as an option. This option was redundant as it is covered by the existing RawMessage option. This affects the setText method in all versions.
Updated many error strings to use consistent punctuation.
The properties minValue and maxValue on the ArgumentOutOfBoundsError class are now optional.
Updated several APIs to throw ArgumentOutOfBoundsError instead of Error where appropriate. This affects the following APIs in all versions:
- Entity.addEffect for when the amplifier setting is out of bounds (0 - 255) or duration setting is out of bounds (1 - 20000000).
- Entity.applyImpulse for when the vector parameter is out of bounds (-1000 - 1000 per axis).
- ItemStack.setLore and ContainerSlot.setLore for when the loreList parameter is out of bounds (0 - 100 max lines, 0 - 1000 max length per line).
- ItemStack.setAmount and ContainerSlot.setAmount for when the amount parameter is out of bounds (0 - 255).
Some existing errors that throw ArgumentOutOfBoundsError have been updated to use a standardized error message. This affects the following APIs in all versions:
- ScreenDisplay.setTitle for when the fadeInDuration, stayDuration or fadeOutDuration settings are out of bounds (min value of 0).
- StructureManager.placeStructure for when the integrity setting is out of bounds (0 - 1).
- PlayerAimAssist.setAimAssistSettings for when the viewAngle setting is out of bounds (10 - 90) or distance setting is out of bounds (1 - 16).
- ItemStack.setNameTag and ContainerSlot.setNameTag for when the nameTag parameter length is out of bounds (0 - 255).
Some existing errors that throw InvalidArgumentError have been updated to use a standardized error message.
- CustomSpawnRulesRegistry.registerObstructionCallback for when the predicate parameter is empty or a duplicate.
Released DyeableItemComponent to stable.

Block Components

Modified minecraft:geometry block component.
- Field uv_lock no longer requires "Upcoming Creator Features" experiment to work, Json format_version still needs to be >= 1.19.80.

Components

Content warnings will log missing entity references in Spawn Rule JSON.
Content warnings will log missing references in Client Biome JSON.
The minecraft:body_rotation_axis_aligned component has been renamed to minecraft:rotation_axis_aligned.

Entity Components

Made the schema for the minecraft:tick_world entity component stricter so that the parsing now refuses out of range values for radius and distance_to_players.

Graphical

Changed cloud quality to player visible option and not a dev only option.

Jigsaw

Added minecraft:blockstate_match and minecraft:random_blockstate_match rules to jigsaw processors.
Added heightmap projection type none and made it the default setting, which instead of performing heightmap calculations uses the starting placement position.

Experimental

These additions and changes are accessible by enabling the "Beta APIs", "Experimental Creator Camera", and "Custom Biomes" experimental toggles.

Additions

Technical

API

Added class InvalidItemStackError to beta.

Commands

Added the fov_set keyword to the /camera command for changing the camera's field of view. Enabled with the Experimental Creator Camera toggle.

Scripting

Added support for text to speech for tooltips at Server-UI forms.

UI

Added support for navigation using keyboard and gamepad for tooltips at settings. Also, to be showed always inside the visible area. Mobile resolutions were having issues with this.

Changes

Technical

API

Moved class PlayerHotbarSelectedSlotChangeAfterEvent from beta to 2.1.0.
Moved class PlayerHotbarSelectedSlotChangeAfterEventSignal from beta to 2.1.0.
Moved class PlayerInventoryItemChangeAfterEvent from beta to 2.1.0.
Moved class PlayerInventoryItemChangeAfterEventSignal from beta to 2.1.0.
Moved interface HotbarEventOptions from beta to 2.1.0.
Moved interface InventoryItemEventOptions from beta to 2.1.0.
Moved enum PlayerInventoryType from beta to 2.1.0.
Class HotbarEventOptions.
- Field allowedSlots added bound validation, numbers inside the array must be between 0 and 8.
Class InventoryItemEventOptions.
- Field allowedSlots added bound validation, numbers inside the array must be positive.
ItemInventoryComponent
- Bundle UI now renders non-contiguous items added to the container with this API correctly.

Experimental

/locate structure command (and similar structure-searching gameplay elements) will now quickly return no result if experimental Custom Biomes have replaced all of the biomes where that structure could appear.

Jigsaw

max_distance_from_center now parses horizontal and vertical values separately in an object while supporting horizontal only with parsing as a constant, the vertical value is now optional and defaults to having no limit.

World generation

Mixing Terrain matching and Rigid Structures will no longer sink rigid structure 1 block.
Chunks will no longer infinitely load when multiple structures are used within a structure set.
Can now use minecraft:empty_pool_element jigsaw template pools to represent empty elements.

Fixes

43 issues fixed

From released versions before 1.21.100

MCPE-63460 – Water is not transparent in swamp biome
MCPE-74983 – Grass blocks can sometimes generate in Mushroom Islands
MCPE-88837 – Piglin brutes do not despawn in Peaceful mode
MCPE-114253 – Squid rendering is offset in the -Y direction
MCPE-137029 – Swamp Biome no longer has a bumpy shoreline
MCPE-140517 – Large spruce tree (2x2) can generate half or fully floating
MCPE-149587 – Pressing "choose new skin" button and then pressing back button prevents skin from being changed until game is restarted
MCPE-157125 – Non-player entities teleport to the void when transported from the End to the Overworld
MCPE-159044 – Allay not disconnecting from lead
MCPE-163558 – Breaking a fence that has an entity tied to it keeps the lead floating for a few seconds
MCPE-185429 – <message: message> command argument can be empty and runs successfully
MCPE-186435 – Allays can hold leads
MCPE-187041 – Leash knots do not adapt to the size of wall blocks that are not connected to anything when animals are leashed to it
MCPE-190531 – flipbook_textures.json does not support animating multiple variants of a same block and only animates the last entry for that block.
MCPE-190751 – No camera perspective button in spectator mode
MCPE-190776 – Standing in Scaffolding or Powder Snow causes pick-block button on mobile to disappear
MCPE-194268 – Stacking multiple Add-Ons warning button says "Link" instead of "Read more"
MCPE-197900 – When I load a world I get a notification saying Cloud Syncing has failed check internet connection and try again. I am connected to the internet just fine.
MCPE-217597 – Vibrant Visuals: Lead is animated incorrectly in first person view
MCPE-217667 – Clicking a world thumbnail while in the grid layout no longer plays click sounds
MCPE-218617 – "Invite to Game" button obscured by scoreboard
MCPE-219364 – /music command stops working after leaving and rejoining world until game restart
MCPE-219554 – New Tears disc has extra spaces in its name
MCPE-220347 – The on_fire_color component in a mob's render controllers does not display the right color in game
MCPE-220829 – Addon Entities using Properties and Render controllers now have texture replacement issues in the v1.21.82 update

Other

Emoting players will no longer get stuck in a boat.
Fixed a bug where caustics were not appearing for player hand and held items in first person view.
Fixed the spyglass and fire effects in first person not receiving gamma calibration in Vibrant Visuals.
Fixed a bug that caused bottle o' enchanting not to glow when thrown in Vibrant Visuals.
Fixed clusters of mangrove root blocks displaying a non-uniform color.
Fixed chain blocks not being rendered with PBR properties defined by the texture set.
Fixed issue that caused chain blocks to change PBR properties of surrounding blocks.
Fixed a bug where glow squid would not act as leash anchor points.
Fixed bug that caused happy ghast to not rotate properly if dismounted while moving vertically.
Fixed rare crashes during the app suspension on Xbox.
Player dots on the locator bar now move smoothly when strafing near other players.
Player dot on the Locator Bar now stops 1 pixel before the edge of the bar.
Fixed a bug which could cause the bed screen to not be removed properly when being disconnected from a server.
Fixed a bug where the includeLiquidBlocks property on BlockRaycastOptions would not correctly result in hits on liquids if it didn't also reach a solid block afterward.
Fixed a crash with the DebugDrawer when used too early in the client joining a world (such as inside the playerSpawn event).
Fixed assert "can't add a new vertex field at this point: COLOR" when loading some worlds that contained clusters of mangrove roots blocks.
Fixed assert "can't add a new vertex field at this point: TEXCOORD_4" when loading some worlds that contained chain or end portal blocks.
Fixed an issue where projectiles were shot in the wrong direction when using touch controls and custom cameras.

References

↑ "Minecraft Beta & Preview - 1.21.100.20" – Minecraft Feedback, June 10, 2025.

Navigation

[1] "Minecraft Beta & Preview - 1.21.100.20" – Minecraft Feedback, June 10, 2025.

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