Bedrock Edition Preview 1.21.120.20
Preview 1.21.120.20


| Edition | ||||||
|---|---|---|---|---|---|---|
| Release date |
September 3, 2025 | |||||
| Server version | ||||||
| Editor version | ||||||
| Build version |
36570833 | |||||
| Internal version |
Windows, Xbox: 1.21.12020.0 | |||||
| Version code |
Android: | |||||
| Type |
Preview | |||||
| Preview for | ||||||
| Downloads | ||||||
| Protocol version |
850 | |||||
| ||||||
{
"title": "Preview 1.21.120.20",
"images": [
"Bedrock 1.21.120.20 PatchNotes.jpg",
"Bedrock 1.21.120.20.png"
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"field": "<small>'''Android''':<br />\n952112020 (armeabi-v7a, 35)<br />\n962112020 (x86, 35)<br />\n972112020 (arm64-v8a, 35)<br />\n982112020 (x86_64, 35)</small>",
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"field": "'''Server'''<br>[https://www.minecraft.net/bedrockdedicatedserver/bin-win-preview/bedrock-server-1.21.120.20.zip Windows]<br>[https://www.minecraft.net/bedrockdedicatedserver/bin-linux-preview/bedrock-server-1.21.120.20.zip Linux]",
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"footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" rowspan=\"2\">[[Bedrock Edition 1.21.114|<span style=\"margin-right:-0.35em\">◄</span>◄ 1.21.114]]</td>\n<td style=\"padding: 0.4em\">'''[[Bedrock Edition 1.21.120|1.21.120]]'''</td>\n<td style=\"padding: 0.4em\" >[[Bedrock Edition 1.21.121| 1.21.121 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n\n<td style=\"padding: 0.4em\">''' Preview 1.21.120.20'''</td>\n<td style=\"padding: 0.4em\">\n[[Bedrock Edition Preview 1.21.120.21| Preview 1.21.120.21 ►]]\n</td>\n</tr>\n</table>"
}
Beta 1.21.120.20 (ChromeOS, Android) or Preview 1.21.120.20 (Windows, iOS, iPadOS, Xbox, PlayStation) is the first beta/Preview version for Bedrock Edition 1.21.120, released on September 3, 2025,[1] which fixes some bugs.
Additions
General
- Added splash "Music made by Hyper Potions!".
Changes
Blocks
- Adding or removing redstone power to or from the shelf now emits vibrations.
- When a player places/removes/swaps an item on an unpowered shelf, a vibration of frequency 3 is emitted.
- When a player places/removes an item on a powered shelf, a vibration of frequency 3 is emitted.
- When a player swaps item with one on a powered shelf, a vibration of frequency 6 is emitted.
General
Camera
- The first person camera will now offset backwards slightly when facing and climbing blocks such as ladders and vines.
Graphical
- Added TAA upscaling to weather effects like snow.
- Improved quality of gamma correction on PC and Consoles.
- Mobs will now become slightly transparent when the camera gets too close or passes through them.
- Starting a world with a missing Marketplace template will now correctly redownload the template and start the world.
UI
- Brightness adjustment was renamed to gamma adjustment in Vibrant Visuals.
- A "Reset to Defaults" button was added to the gamma adjustment screen in Vibrant Visuals.
- The slider widget that controls the Vibrant Visuals gamma value shows the current gamma value, and the center of the slider corresponds to the default value.
Mobs
- The baby zombie riding a chicken now drops the lava chicken music disc when killed by a tamed wolf.
- Copper golem step and spin sounds now use a natural attenuation curve.
World generation
- Structures no longer build on top of features (e.g. trees) at chunk borders.
Technical
- Optionally set version property to
betato always choose the latest beta version of the module. Example frommanifest.json:
"dependencies": [
{
"module_name": "@minecraft/server",
"version": "beta"
}
LootTableManager's loot generation methods now properly recognize tools enchanted with looting.- Moved type
ScriptBiomeTypefrombetainto2.3.0. - Moved API
Dimension.getBiome(location: Vector3)frombetainto2.3.0.
- Custom blocks using a non-opaque
render_methodin theminecraft:material_instancescomponent that are placed above water will no longer incorrectly cull the top face of the water block.
Components
- The
all_slots_empty,any_slot_empty,has_equipmentfilters now supportmain_handas an equipment location.
Item Components
- Items with the new
minecraft:fire_resistantitem component no longer visually disappear on the client when thrown in fire while persisting on the server, as the property is now synced correctly across both.
- Added 31 new Molang expressions:
math.inverse_lerp(start, end, value), returns the normalized progress between start and end given value.math.ease_in_quad(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating toward the end.math.ease_out_quad(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating toward the end.math.ease_in_out_quad(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow, accelerating in the middle, then slowing again at the end.math.ease_in_cubic(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating strongly toward the end.math.ease_out_cubic(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating strongly toward the end.math.ease_in_out_cubic(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow, accelerating strongly in the middle, then slowing again at the end.math.ease_in_quart(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating rapidly toward the end.math.ease_out_quart(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating rapidly toward the end.math.ease_in_out_quart(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow, accelerating rapidly in the middle, then slowing again at the end.math.ease_in_quint(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating sharply toward the end.math.ease_out_quint(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating sharply toward the end.math.ease_in_out_quint(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow, accelerating sharply in the middle, then slowing again at the end.math.ease_in_sine(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating smoothly toward the end.math.ease_out_sine(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating smoothly toward the end.math.ease_in_out_sine(start, end, 0_to_1), output goes from start to end via0_to_1, starting and ending slow, with smoother change in the middle.math.ease_in_expo(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating very rapidly toward the end.math.ease_out_expo(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating gradually toward the end.math.ease_in_out_expo(start, end, 0_to_1), output goes from start to end via0_to_1, starting and ending slow, with very rapid change in the middle.math.ease_in_circ(start, end, 0_to_1), output goes from start to end via0_to_1, starting slow and accelerating along a circular curve toward the end.math.ease_out_circ(start, end, 0_to_1), output goes from start to end via0_to_1, starting fast and decelerating along a circular curve toward the end.math.ease_in_out_circ(start, end, 0_to_1), output goes from start to end via0_to_1, starting and ending slow, with circular acceleration and deceleration in the middle.math.ease_in_bounce(start, end, 0_to_1), output goes from start to end via0_to_1, starting with bounce oscillations and settling into the end.math.ease_out_bounce(start, end, 0_to_1), output goes from start to end via0_to_1, approaching the end with bounce oscillations that diminish over time.math.ease_in_out_bounce(start, end, 0_to_1), output goes from start to end via0_to_1, starting and ending with bounce oscillations, smoother in the middle.math.ease_in_back(start, end, 0_to_1), output goes from start to end via0_to_1, overshooting backward before accelerating into the end.math.ease_out_back(start, end, 0_to_1), output goes from start to end via0_to_1, overshooting past the end before settling into it.math.ease_in_out_back(start, end, 0_to_1), output goes from start to end via0_to_1, overshooting at both start and end, with smoother change in the middle.math.ease_in_elastic(start, end, 0_to_1), output goes from start to end via0_to_1, starting with elastic oscillations before accelerating into the end.math.ease_out_elastic(start, end, 0_to_1), output goes from start to end via0_to_1, overshooting the end with elastic oscillations before settling.math.ease_in_out_elastic(start, end, 0_to_1), output goes from start to end via0_to_1, oscillating elastically at both start and end, with stable change in the middle.
Experimental
These additions and changes are accessible by enabling the "Beta APIs", "Upcoming Creator Features", and "Render Dragon Features for Creators" experimental toggles.
Additions
Technical
API
- Added
Dimension.getGeneratedStructures(location: Vector3)which can be used to locate the Structures(Pillager Outpost, Mineshaft, etc.)of a given location. - Added
worldAfterEvents.playerUseNameTagwhich fires when a Player uses a named NameTag Item on an Entity. - Added
ControlSchemestring enum. - Added method
Player.setControlScheme(controlScheme?: string): void; tobeta. - Added method
Player.getControlScheme(): ControlScheme;tobeta.
Blocks
- Allow items referencing a pottable block in their
minecraft:block_placercomponent to be pottable whenreplace_block_itemis true.
- Added an offset and alignment property to the summon tool so that creators can more easily position entities at specific locations.
Graphical
- Deprecated
point_lights/global.jsonin favor of a new file and schema,local_lighting/local_lighting.json. Creators can still make use ofpoint_lights/global.json, but are encouraged to migrate to the new schema.- Extended per-block local lighting information to include a
light_typewhich can be eitherstatic_lightorpoint_light.- A block will only be considered for point lighting if its
light_typeis set topoint_light. static_lightis currently unused.
- A block will only be considered for point lighting if its
- The
light_colorproperty is now optional. If unprovided, the block will use a fallback light color instead. - A sample
local_lighting.jsoncould look like this:format_version:1.21.120,minecraft:local_light_settings:minecraft:torch:light_color:#EFE39D,light_type:point_light.
- Extended per-block local lighting information to include a
- Added
query.entity_biome_has_any_identifier,query.entity_biome_has_any_tags, andquery.entity_biome_has_all_tagsmolang query functions to Upcoming Creator Features.- These queries only work in resource packs (client-side), and are not supported in behavior packs.
entity_biome_has_any_identifier('namespace:biome_name')takes a list of biome identifiers and checks if any are the specified biome the entity is in.entity_biome_has_any_tags('my_tag_name')takes a list of biome tags and checks if the biome the entity is in matches any.entity_biome_has_all_tags('my_tag_name')takes a list of biome tags and checks if the biome the entity is in matches all.
Fixes
From released versions before 1.21.120
- MCPE-51173 – No Suspicious Stew in the Creative menu.
- MCPE-105710 – Keyboard button for mobile devices in chat still exists on Windows, and Console.
- MCPE-159992 –
/locate biome deep_darksometimes sent you to the wrong coordinates of the biome. - MCPE-177866 – Custom items can't be used in commands if their menu category is "none" or undefined.
- MCPE-180489 – Custom blocks do not have a quick move animation.
- MCPE-183832 – Player sleep message says Users instead of Players.
- MCPE-186409 – Clicking text to reposition caret is wrong if the text box isn't scrolled fully right.
- MCPE-190569 – Enchantment glint animation still plays when the game is paused.
- MCPE-191379 –
/damagecan damage end crystals even though the chat says it cannot. - MCPE-224011 – Copper chest opening and closing sounds are too loud.
- MCPE-225249 – Items held by copper golems can't be taken when the player has an item in the offhand.
- MCPE-225309 – Some items stick out too far from shelves.
- MCPE-225997 – Tadpoles spawn in the upper northwest corner of the frogspawn block, often causing them to die out of the water.
- MCPE-225999 – Sitting Copper Golem Statue has inconsistent UV mapping.
- MCPE-226160 – Smooth lighting on partial blocks is broken after 1.21.100 update.
- MCPE-226829 – Items can’t be moved from creative inventory to player inventory.
Other
- Fixed an issue with being unable to continue destroying valid blocks in Adventure Mode when they are behind water.
- Fixed loading of text for sign blocks from very old worlds.
- Fixed snowflakes flickering during player movement.
- Fixed the brightness of creeper textures in the gamma calibration screen in Vibrant Visuals.
- Fixed a bug that could cause armor trims to appear applied to untrimmed armor in the inventory.
- Fixed issue where worlds backed by Xbox cloud storage would show a default tile when local data was present but invalid.
- Fixed
Player.graphicsModenot returning the correct graphics mode when a player has switched to Vibrant Visuals. - Fixed
query.graphics_mode_is_anynot being correct when switching to Vibrant Visuals.
References
- ↑ "Minecraft Beta & Preview - 1.21.120.20" – Minecraft Feedback, September 3, 2025.