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	<title>Minecraft:Bedrock Edition beta 1.17.40.21 - Revision history</title>
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	<updated>2026-04-09T14:01:59Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://wiki.sasgaming.net/index.php?title=Minecraft:Bedrock_Edition_beta_1.17.40.21&amp;diff=47961&amp;oldid=prev</id>
		<title>imported&gt;NovaBot: Bot: Change pseudo headers according to MCW:PSEUDO</title>
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		<updated>2025-02-07T23:38:17Z</updated>

		<summary type="html">&lt;p&gt;Bot: Change pseudo headers according to &lt;a href=&quot;/index.php?title=MCW:PSEUDO&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;MCW:PSEUDO (page does not exist)&quot;&gt;MCW:PSEUDO&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Infobox version&lt;br /&gt;
|edition=Bedrock&lt;br /&gt;
|image=Bedrock 1.17.40.21 PatchNotes.jpg&lt;br /&gt;
|image2=Bedrock 1.17.40.21.png&lt;br /&gt;
|type=Beta&lt;br /&gt;
|internal=&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Windows&amp;#039;&amp;#039;&amp;#039;: 1.17.4021.0&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Xbox One&amp;#039;&amp;#039;&amp;#039;: 1.17.4021.70&amp;lt;br&amp;gt;&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Android&amp;#039;&amp;#039;&amp;#039;: 1.17.40.21&amp;lt;br&amp;gt;&lt;br /&gt;
|parent=1.17.40&lt;br /&gt;
|date=&amp;#039;&amp;#039;&amp;#039;Xbox, Windows 10, Android&amp;#039;&amp;#039;&amp;#039;: September 22, 2021&lt;br /&gt;
|prevparent=1.17.34&lt;br /&gt;
|prev=beta 1.17.40.20&lt;br /&gt;
|next=beta 1.17.40.23&lt;br /&gt;
|nextparent=1.17.41&lt;br /&gt;
}}&amp;lt;onlyinclude&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Beta 1.17.40.21&amp;#039;&amp;#039;&amp;#039; is the second beta version for [[Minecraft:Bedrock Edition 1.17.40]], released on September 22, 2021,&amp;lt;ref&amp;gt;{{cite|url=https://feedback.minecraft.net/hc/en-us/articles/4409802760717|title=Minecraft Beta - 1.17.40.21 (Xbox One/Windows 10/Android)|website=feedback.minecraft.net|date=September 22, 2021}}&amp;lt;/ref&amp;gt;&amp;lt;ref&amp;gt;{{Mcnet|minecraft-beta-1-17-40-21|Minecraft Beta 1.17.40.21|22 September 2021|Jay Wells}}&amp;lt;/ref&amp;gt; which allows old worlds to upgrade to the new world generation behind experimental toggle, and fixes bugs.&lt;br /&gt;
&lt;br /&gt;
== Changes ==&lt;br /&gt;
=== General ===&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;[[Minecraft:RenderDragon]]&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* As part of continued testing, removed RenderDragon engine support on Android devices (ARMv7) ({{bug|MCPE-141319}})&lt;br /&gt;
&lt;br /&gt;
== Experimental ==&lt;br /&gt;
These additions and changes are accessible by enabling the &amp;quot;[[Minecraft:Caves &amp;amp; Cliffs]]&amp;quot; and &amp;quot;Enable GameTest Framework&amp;quot; experimental toggle.&lt;br /&gt;
&lt;br /&gt;
=== World generation ===&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;[[Minecraft:Dripstone Caves]]&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* In world generation, grass is replaced with stone (if generated near grass).&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;[[Minecraft:Mountains]]&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Mountain tops are now more jagged and pointy.&lt;br /&gt;
* Mountain areas and peak biomes now are slightly larger on average.&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;[[Minecraft:Stone shore]]s&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Sometimes generate layers (strips) of [[Minecraft:gravel]]. &lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;[[Minecraft:Stony peaks]]&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Sometimes generate layers (strips) of [[Minecraft:calcite]].&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;General &amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Added new world/cave generation when upgrading saved chunks below Y=0 using the Caves and Cliffs experimental toggle.&lt;br /&gt;
** Chunks previously upgraded with Bedrock underneath will not see this change.&lt;br /&gt;
* Upgrades older flat worlds to the new extended heights available with the Caves &amp;amp; Cliffs experimental toggle&lt;br /&gt;
* New flat worlds using the Caves &amp;amp; Cliffs experimental toggle will generate starting at &amp;quot;y=-64&amp;quot;&lt;br /&gt;
&lt;br /&gt;
=== Technical ===&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;GameTest Framework&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Updated the GameTest Framework interface and added a new SimulatedPlayer capability:&lt;br /&gt;
** Added &amp;#039;SimulatedPlayer&amp;#039;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.&lt;br /&gt;
*** Added function spawnSimulatedPlayer(blockLocation: BlockLocation, name: string): SimulatedPlayer&lt;br /&gt;
*** Added function removeSimulatedPlayer(simulatedPlayer: SimulatedPlayer): void&lt;br /&gt;
** mojang-gametest.Test type&lt;br /&gt;
*** Changed signature of function assertEntityInstancePresent(entity: Entity, blockLocation: BlockLocation, isPresent: boolean = true)&lt;br /&gt;
** mojang-minecraft components&lt;br /&gt;
*** Component inventory now works with Player inventories&lt;br /&gt;
&lt;br /&gt;
== Fixes ==&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Experimental&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Fixed an issue in beta builds where flying above the world limit (255 for non-Caves &amp;amp; Cliffs experimental, 319 for Caves &amp;amp; Cliffs experimental) would be prohibited ({{bug|MCPE-141360}}).&lt;br /&gt;
* Copper Ore now generates up to y=96 instead of y=64 ({{bug|MCPE-125233}}).&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;General&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Holding Top Snow in hand while hovering over Grass Blocks no longer causes incorrect behavior ({{bug|MCPE-140659}}, {{bug|MCPE-140660}}).&lt;br /&gt;
* Bee Nests now generate correctly in the world ({{bug|MCPE-141324}}, {{bug|MCPE-132195}}).&lt;br /&gt;
* Non-fireproof mobs now avoid pathing through fire ({{bug|MCPE-23835}}).&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Gameplay&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Vanilla Parity: Players are now able to activate Elytra gliding while moving upward ({{bug|MCPE-59580}}).&lt;br /&gt;
* Using Dye on Signs that contain formatted color text will overwrite the formatted color text.&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;World Generation&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Fossils are now much less likely to generate in, and destroy structures.&lt;br /&gt;
* Dungeons are no longer misplaced or missing outside of the Caves &amp;amp; Cliffs experimental toggle ({{bug|MCPE-121708}}).&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Mobs&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Iron Golem now spawns only on solid blocks ({{bug|MCPE-140145}}).&lt;br /&gt;
* Wielded weapons now render properly on Pillagers and Vindicators ({{bug|MCPE-141321}}).&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;User Interface&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Riding an animal now displays the correct button prompt when playing with non-touch controls.&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Character Creator&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Back appearance pieces will no longer cover the left and right arrows in the profile screen.&lt;br /&gt;
* Fixed featured items in the profile screen not opening the featured catalog in the Dressing Room.&lt;br /&gt;
* Fixed default clothes changing color if another item’s color was edited previously.&lt;br /&gt;
* Sidebar options can now be selected in expanded view after navigating back from previously selected sidebar option while using controller.&lt;br /&gt;
* Sidebar no longer opens upon expanding any of the classic skin packs in the Dressing Room.&lt;br /&gt;
* Improved the navigation flow for Character Creator so that it always switches to the selected Character Creator profile ({{bug|MCPE-139022}}).&lt;br /&gt;
* Skins that are equipped from Marketplace while in-game now apply to character.&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Technical&amp;#039;&amp;#039;&amp;#039;&lt;br /&gt;
* Fixed a bug that caused animations to be restarted when changing render controllers.&lt;br /&gt;
* 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.&lt;br /&gt;
* Molang expressions that contain capital letters are properly evaluated now.&lt;br /&gt;
* &amp;#039;query.get_equipped_item_name&amp;#039; will now recognize Sea Lantern ({{bug|MCPE-67893}}).&lt;br /&gt;
* 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).&amp;lt;/onlyinclude&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== References ==&lt;br /&gt;
{{Reflist}}&lt;br /&gt;
&lt;br /&gt;
== Navigation ==&lt;br /&gt;
{{Navbox Bedrock Edition versions|1.1x}}&lt;br /&gt;
&lt;br /&gt;
[[Minecraft:de:Bedrock Edition beta 1.17.40.21]]&lt;br /&gt;
[[Minecraft:es:Bedrock Edition beta 1.17.40.21]]&lt;br /&gt;
[[Minecraft:pt:Edição Bedrock beta 1.17.40.21]]&lt;br /&gt;
[[Minecraft:ru:Beta 1.17.40.21 (Bedrock Edition)]]&lt;br /&gt;
[[Minecraft:zh:基岩版1.17.40.21]]&lt;/div&gt;</summary>
		<author><name>imported&gt;NovaBot</name></author>
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