Minecraft Beta 1.17.40.21

Hello? Hello? Can anyone hear me? I’m in a newly generated cave and, I’m not saying I’m lost, but I most certainly don’t know how to find my way out. I know I followed a copper ore vein that was deeper than usual and all of a sudden, I’m below one of my saved chunks and here we are. While I try to dig myself out, please enjoy this week’s Bedrock Beta update and send us your feedback at aka.ms/CavesCliffsFeedback and report any bugs at bugs.mojang.com.  And if the rest of the Bedrock team asks where I am, just tell them I’m stuck in traffic. They will never let me live this down…

Experimental Features

• Added new world/cave generation when upgrading saved chunks below Y=0 using the Caves and Cliffs experimental toggle
  • Chunks previously upgraded with Bedrock underneath will not see this change
  • For more information, please see our FAQ! We'd love to hear your feedback about it at aka.ms/CavesCliffsFeedback

Flat World Generation

• Upgrades older flat worlds to the new extended heights available with the Caves & Cliffs experimental toggle
• New flat worlds using the Caves & Cliffs experimental toggle will generate starting at "y=-64"

Gameplay

• Fixed an issue in beta builds where flying above the world limit (255 for non-Caves & Cliffs experimental, 319 for Caves & Cliffs experimental) would be prohibited (MCPE-141360)

Copper Ore

• Copper Ore now generates up to y=96 instead of y=64 (MCPE-125233)

Non-Experimental Features and Bug Fixes

General

• Holding Top Snow in hand while hovering over Grass Blocks no longer causes incorrect behavior (MCPE-140659) (MCPE-140660)
• Bee Nests now generate correctly in the world (MCPE-141324) (MCPE-132195)
• Non-fireproof mobs now avoid pathing through fire (MCPE-23835)

Gameplay

• Vanilla Parity: Players are now able to activate Elytra gliding while moving upward (MCPE-59580)
• Using Dye on Signs that contain formatted color text will overwrite the formatted color text

World Generation

• Fossils are now much less likely to generate in, and destroy, structures
• Dungeons are no longer misplaced or missing outside of the Caves & Cliffs experimental toggle (MCPE-121708)

Mobs

• Iron Golem now spawns only on solid blocks (MCPE-140145)
• Wielded weapons now render properly on Pillagers and Vindicators (MCPE-141321)

User Interface

• Riding an animal now displays the correct button prompt when playing with non-touch controls

Character Creator

• Back appearance pieces will no longer cover the left and right arrows in the profile screen
• Fixed featured items in the profile screen not opening the featured catalog in the Dressing Room
• Fixed default clothes changing color if another item’s color was edited previously
• Sidebar options can now be selected in expanded view after navigating back from previously selected sidebar option while using controller
• Sidebar no longer opens upon expanding any of the classic skin packs in the Dressing Room
• Improved the navigation flow for Character Creator so that it always switches to the selected Character Creator profile (MCPE-139022)
• Skins that are equipped from Marketplace while in-game now apply to character

Technical Updates

Animation

• Fixed a bug that caused animations to be restarted when changing render controllers

Graphical

• Fixed text on Signs losing their formatting when new lines or word-wrapping are encountered. Formatting will now persist until the reset code or an overriding code is found. This is not retroactive and previously created Signs will not be changed

Graphics

• As part of continued testing, removed RenderDragon engine on Android devices (ARMv7)

Molang

• Molang expressions that contain capital letters are properly evaluated now
• 'query.get_equipped_item_name' will now recognize Sea Lantern (MCPE-67893)
• Add new compile errors for expressions like 1 + (9 10), which were previously ignored (This is a Versioned Change as of engine version 1.17.40)

GameTest Framework (Experimental)

• Updated the GameTest Framework interface and added a new SimulatedPlayer capability:
  • Added 'SimulatedPlayer'class to GameTest. This class enables GameTest to simulate a variety of player behaviors such as movement, using items, and interacting with blocks and entities. See the GameTest API reference documentation for more details.
    • Added function spawnSimulatedPlayer(blockLocation: BlockLocation, name: string): SimulatedPlayer
    • Added function 
      removeSimulatedPlayer(simulatedPlayer: SimulatedPlayer): void
  • mojang-gametest.Test type
    • Changed signature of function assertEntityInstancePresent(entity: Entity, blockLocation: BlockLocation, isPresent: boolean = true)
  • mojang-minecraft components
    • Component inventorynow works with Player inventories

PLEASE READ before participating in the Minecraft Beta: 

• Joining the beta will replace your game with a work in progress version of Minecraft 
• You will not have access to Realms and will not be able to join non-beta players while you're previewing the beta
• Any worlds played while in the beta cannot be opened in previous versions of the game so please make copies of worlds to prevent losing them 
• Beta builds can be unstable and are not representative of final version quality 
• The beta is available only on Xbox One, Windows 10, and Android (Google Play). To join or leave the beta, see aka.ms/JoinMCBeta for detailed instructions

As always, you can check out the latest full changelog at aka.ms/MinecraftBeta. Good luck and enjoy the beta update!