Bedrock Edition Preview 1.21.40.21

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 "title": "Preview 1.21.40.21",
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 "field": "'''Android''':<br />\n952104021 (armeabi-v7a, 34)<br />\n962104021 (x86, 34)<br />\n972104021 (arm64-v8a, 34)<br />\n982104021 (x86_64, 34)<br />",
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 "footer": "<table style=\"margin: auto; word-break: break-word;\">\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\" >[[Bedrock Edition 1.21.31|<span style=\"margin-right:-0.35em\">◄</span>◄  1.21.31]]</td>\n<td style=\"padding: 0.4em\">'''[[Bedrock Edition 1.21.40|1.21.40]]'''</td>\n<td style=\"padding: 0.4em\" >[[Bedrock Edition 1.21.41| 1.21.41 <span style=\"margin-right:-0.35em\">►</span>►]]</td>\n</tr>\n<tr style=\"background: inherit;\">\n<td style=\"padding: 0.4em\">\n[[Bedrock Edition Preview 1.21.40.20|◄  Preview 1.21.40.20]]\n</td>\n<td style=\"padding: 0.4em\">''' Preview 1.21.40.21'''</td>\n<td style=\"padding: 0.4em\">\n[[Bedrock Edition Preview 1.21.40.22| Preview 1.21.40.22 ►]]\n</td>\n</tr>\n</table>"
}

Beta 1.21.40.21 (ChromeOS, Android) or Preview 1.21.40.21 (Windows, iOS, iPadOS, Xbox, PlayStation) is the second beta/Preview version for Bedrock Edition 1.21.40, released on September 11, 2024,^[1] which reorganizes items and blocks in the creative inventory, and fixes bugs.

Monster Spawner

• Its step sounds and hit sounds now play at their intended volume.

Trial Spawner

• Its hit sounds now play at their intended volume.

Creative inventory

• Items and blocks in the creative inventory have been reorganized, with the goal of making overall sorting more intuitive:
  • Trial chamber items:
    • Trial keys were moved to be next to ominous trial keys.
    • Ominous bottles were moved next to the existing potions and were made into its own "Ominous Bottle" group.
  • Stone group in the "Nature" tab:
    • Stone was moved into the "Stone" group.
    • Stone is now the front block of the "Stone" group.
    • Basalt and smooth basalt were moved into the "Stone" group.
    • Tuff and polished tuff were moved into the "Stone" group.
  • "Decorative Stone" in the "Construction" tab:
    • Smooth stone was moved into "Decorative Stone".
    • Tuff bricks, chiseled tuff, and chiseled tuff bricks were moved from the "Nature" category to "Decorative Stone" in the "Construction" category.
    • Prismarine bricks were moved from the "Decorative Stone" group, now they are next to prismarine and dark prismarine.
  • Copper family:
    • Reordered raw iron, raw copper, raw gold to raw copper, raw iron, raw gold.
    • The copper, iron, and gold blocks were moved to match the raw versions ordering.
    • The copper doors were moved to all the other doors.
    • The copper trapdoors were moved to the group with all the other trapdoors.
    • Copper blocks and copper grates are now sorted by block type then by oxidation level, instead of oxidation level then block type.
  • Tuff family:
    • Tuff stairs, tuff slabs, tuff walls, and their polished versions were moved from the "Nature" tab to the "Construction" tab into their respective groups.
  • Other blocks
    • Bricks are now placed before the "Slabs" group.
      • This change only affects bricks made from clay and not all the brick blocks.
    • Chiseled nether bricks and cracked nether bricks were moved next to the nether bricks block and red nether bricks.
    • Quartz bricks placed next to the other quartz blocks.
    • Rooted dirt is now next to the other dirt blocks.
    • Many dirt blocks and grass variants were shuffled around for a greater parity with Java Edition.
    • Gravel is now ordered after the "Stone" group and is next to sand and red sand.
    • Clay was moved from the "Construction" category to the "Nature" category, placed next to the mud block.

Settings

• Removed some Keyboard key bindings from Settings that should only exist in Minecraft Education: Control Tips, Code Builder, and Immersive Reader.

UI

• LAN worlds are now visible in the "Worlds" tab for the OreUI Play screen (Preview only).

Mace

• Mobs can now perform mace smash attacks again.

Behavior Packs

• Updated references to old block names in behavior pack wood recipe files.
• Updated references to old block names in remaining behavior pack recipe files.

Blocks

• Added content warning when carried_textures or blockshape are incorrectly written in blocks.json.

Components

• Renamed the minecraft:lookat component to minecraft:looked_at to better reflect its functionality:
  • Its look_event field was also renamed to looked_at_event.
  • Its look_cooldown field was also renamed to looked_at_cooldown.
• Expanded the minecraft:looked_at component functionality with the addition of six new [Beta] fields:
  • find_players_only restricts the search for entities looking at the owner entity to players only, ensuring that the closest player satisfying the specified filters is selected.
  • look_at_locations defines the parts of the owner entity that are targeted for being looked at:
    • For these parts, a line-of-sight check is performed to ensure no blocks obstruct the view.
    • Supported values are head, body, and feet.
  • not_looked_at_event specifies the event to trigger when no suitable entity is looking at the owner entity.
  • field_of_view defines the width of the field of view, in degrees, for entities looking at the owner entity:
    • If scale_fov_by_distance is set to true, this value corresponds to the field of view at a distance of one block between the entities.
  • scale_fov_by_distance determines if the field of view narrows as the distance between the owner entity and the entity looking at it increases.
    • This ensures that the width of the view cone at the owner entity position remains relatively constant, regardless of distance.
  • line_of_sight_obstruction_type defines which block shape is considered when checking for line-of-sight obstructions.
    • Supported values are outline, collision, and collision_for_camera.
  • Moreover, et_target now supports three different values:
    • never, looking entities are never set as targets, but events are emitted.
    • once_and_stop_scanning, the first detected looking entity is set as target, but scanning and event emission is suspended if and until the owner entity has a target.
    • [Beta] once_and_keep_scanning, the first detected looking entity is set as target, but scanning and event emission continues.
  • All these fields are planned to be taken out of [Beta] and fully released at a later date.

Entity Event Responses

• Added the reset_target entity event response, which allows an entity to reset its target.

Feature

• Using unsupported feature placement in pregeneration_pass will now throw a content error instead of crash.

Graphical

• Add new the_end.client_biome.json as the first new type of file to contain per-biome rendering and audio settings in resource packs.

Items

• The minecraft:item object is parsed with a strict loader from 1.21.40:
  • Numbers and booleans are no longer interchangeable in the JSON input.
  • Floating point numbers are no longer accepted where an integer is expected.

These additions and changes are accessible by enabling the "Beta APIs", and "Upcoming Creator Features" experimental toggles.

Graphical

• Added a slider in the Deferred Technical Preview video settings for controlling the upscaling resolution factor.

Molang

• Adding under upcoming creator features:
  • query.client_memory_tier. Returns a number representing the client RAM memory tier, 0 = "Undetermined", 1 = "SuperLow", 2 = 'Low", 3 = 'Mid", 4 = "High", or 5 = "SuperHigh". Available on the Client (Resource Packs) only.
  • query.server_memory_tier. Returns a number representing the server RAM memory tier, 0 = "Undetermined", 1 = "SuperLow", 2 = 'Low", 3 = 'Mid", 4 = "High", or 5 = "SuperHigh". Available on the server side (Behavior Packs) only.

Scripting

• Added enum MemoryTier:

 export enum MemoryTier {
 Undetermined = 0,
 SuperLow = 1,
 Low = 2,
 Mid = 3,
 High = 4,
 SuperHigh = 5
 }

• Added base class SystemInfo:
  • Field MemoryTier.
• Added class ClientSystemInfo:
  • Field MemoryTier.
• Class Player:
  • Added property clientSystemInfo.
• Class System:
  • Added property serverSystemInfo.

Graphical

• Improved lighting for maps when held in hand and when placed in frames in the Deferred Technical Preview.

17 issues fixed

From released versions before 1.21.40

• MCPE-116364 – Stone and end stone are not in the Stone group in the Creative inventory.
• MCPE-176383 – Tuff blocks variants aren't grouped together to their block variants respectively.
• MCPE-176384 – Copper group in creative inventory is disorganized.
• MCPE-178959 – Bogged's head does not move together with equipped Skull & Carved Pumpkin.
• MCPE-179608 – No longer able to move "open inventory" touch control to the left side.
• MCPE-180278 – Ominous Bottles are not grouped together as its own item group in the creative menu.
• MCPE-180280 – Ominous Trial Key are not grouped with normal trial key in the creative inventory.
• MCPE-180640 – Oozing, weaving and wind charged don't work on the player.
• MCPE-183431 – New Bed Screen shows an incorrect message when playerssleepingpercentage is set to >100.
• MCPE-185502 – Renamed bundle doesn't have italic formatting.
• MCPE-185913 – Wither Skeleton’s new step sounds are too quiet.
• MCPE-186235 – Slabs in Shipwrecks can be the wrong half.

From the previous development version

• MCPE-186343 – Some blocks have no ambient occlusion.

Other

• Fixed an issue where packs were not downloaded or applied when joining a server that had CDN enabled.
• Fixed an issue where user choice for downloading/applying resource packs during server join was ignored when CDN is enabled on the server.
• Fixed an issue where trades with negative max_use values could not be traded.
• Fixed water surface shaking that would occur when upscaling was enabled in the Deferred Technical Preview.