Minecraft:Java Edition 21w11a

21w11a is the fourteenth Minecraft:snapshot for Minecraft:Java Edition 1.17 released on March 17, 2021,<ref>Template:Snap</ref> which fixes numerous bugs, many of which relate to textures and rendering issues as well as adds new mechanics related to Minecraft:copper.

Additions

General

Minecraft:Controls

• Added Template:Key shortcut to generate and persist performance metrics from in-game, similar to Template:Cmd.
  • Metrics are saved in Minecraft:.minecraft/debug/profiling/<timestamp>.zip.

Particles

• Added the Template:Cd particles.

Minecraft:Tags

• Added the cluster_max_harvestables item tag.
  • Contains all pickaxes.

Changes

Blocks

Minecraft:Amethyst cluster

• Breaking by hand, Minecraft:piston, or other means now drops 2 Minecraft:amethyst shards instead of dropping none.
• Breaking with any pickaxe can now be used to drop 4 amethyst shards instead of an iron pickaxe or higher.

Minecraft:Azalea

• Can now be used as Minecraft:fuel in a Minecraft:furnace.

Minecraft:Big dripleaf

• Breaking the stem now drops the block.
• Now can be fertilized with Minecraft:bone meal on the stem to make the dripleaf grow.

Minecraft:Block of copper, Minecraft:cut copper, and variants

• Minecraft:Honeycomb can now be Template:Control to wax them, to match Template:BE.
  • Yellow particles are formed when waxing the block.
• Using a Minecraft:dispenser with honeycomb waxes them, matching Bedrock Edition.
• Minecraft:Axes can now be Template:Control to scrape off wax and oxidation (one stage at a time).
  • White particles are formed when scraping off wax from the block.
• Minecraft:Lightning now may clean oxidation, reverting the oxidation process by one or several stages.
  • Chances of cleaning and number of reverted stages are higher the closer to the struck block.
• Waxed copper blocks can be crafted into 4 Minecraft:copper ingots, to match Bedrock Edition.

Minecraft:Brewing stand

• Changed potion icon in the brewing stand GUI to reflect the new bottle texture in the Minecraft:Texture Update.<ref>Template:Bug</ref>
• Removed some stray pixels from the GUI texture.

Minecraft:Cauldron

• Minecraft:Lava buckets and Minecraft:powder snow buckets can now be emptied in the respective filled cauldrons.

Minecraft:Cave vines

• Renamed the parts from "cave vines head" and "cave vines body" to "cave vines" and "cave vines plant", respectively.
  • The IDs have also changed.
• Now all parts give a Minecraft:light level of 14.
  • Previously, only the bottom-most part gave level 14; others gave only 10.
• Now slow down the player.
• Can now be climbed.

File:End Gateway JE5.gif End gateway block

• Particle field has been shrunk to its pre-21w10a size.

File:End Portal JE6.gif End portal block

• Particle field has been shrunk to its pre-21w10a size.

Minecraft:Gilded blackstone

• The texture has changed.

Minecraft:Glow lichen

• Minecraft:Bone meal can no longer be used on it if it has no blocks to spread to.
• Can now be used on a Minecraft:composter.

Minecraft:Grass block

• Changed part of the dirt of the side texture of snowy grass to match regular grass.<ref>Template:Bug</ref>

Minecraft:Hanging roots

• Now renders randomly offset from the center.
• Removing the support block for it no longer allows it to float.

Minecraft:Lava

• Again replaces air below Y=-55.

Minecraft:Lectern

• Slightly shrunk top part to prevent z-fighting with Minecraft:fire.<ref>Template:Bug</ref>

Minecraft:Lightning rod

• Can now be Minecraft:waterlogged.
• Now turns completely white when struck by Minecraft:lightning.
  • Has a new block state, "powered", used to determine whether the rod turns completely white when struck by lightning.
• Now emits particles when in contact with rain.

Minecraft:Moss block

• Can be combined with Minecraft:cobblestone or Minecraft:stone bricks to make the mossy versions of those blocks.
  • Minecraft:Vines can still be used, in addition to moss blocks.
• In addition to Minecraft:axes,<ref>Template:Bug</ref> Minecraft:hoes are now an appropriate tool to collect it.

Minecraft:Pumpkin

• Changed one pixel on the pumpkin's top texture to remove the possibility for a small swastika to be displayed.<ref>Template:Bug</ref>

Minecraft:Rooted dirt

• Template:Control Minecraft:bone meal on any side grows Minecraft:hanging roots underneath.

Minecraft:Signs

• Changed the textures of acacia, birch, dark oak, jungle, oak, and spruce signs to reflect new textures in the Minecraft:Texture Update.

Minecraft:Small dripleaf

• The facing direction is now determined by which direction the player is facing when placing it.

Minecraft:Smoker

• Changed the top texture of the smoker.

Minecraft:Spore blossom

• Removing the support block for it no longer allows it to float.

Minecraft:Tinted glass

• No longer causes Minecraft:suffocation.
• Mobs can no longer spawn on top of it.

Items

Minecraft:Jungle doors

• Changed the texture of the jungle door item to reflect the block texture in the Texture Update.<ref>Template:Bug</ref>

Minecraft:Spectral arrows

• Fired spectral arrows are now entirely golden to reflect the item texture in the Texture Update.<ref>Template:Bug</ref>

Minecraft:Sugar cane

• Changed the texture of the sugar cane item to better reflect biome tinting added in 1.7.2.<ref>Template:Bug</ref>

Mobs

Minecraft:Cats

• Changed the texture of the siamese cat type, mostly brightening it.

Minecraft:Guardian and Minecraft:elder guardian

• Removed some stray pixels from the texture file.

Minecraft:Villagers and Minecraft:zombie villagers

• Moved the librarian top overlay texture to correct side of its torso.<ref>Template:Bug</ref>

Non-mob entities

Minecraft:Paintings

• Changed the back texture to reflect the planks texture in the Texture Update.

World generation

Minecraft:Caves

• Tweaked the cave sizes.

Minecraft:Lush caves

• Reduced the amount of floating water in lush caves.

Ores

• Slightly increased the frequency of Minecraft:diamond ore blobs.
• If any ore replaces tuff, it is now deepslate ore.

Gameplay

Minecraft:Freezing

• Frozen hearts now have a different texture in Minecraft:Hardcore mode to reflect the regular heart texture.

Minecraft:Spectator mode

• It is now possible to see while inside Minecraft:lava and Minecraft:powder snow.

Minecraft:Subtitles

• Added subtitles for amethyst blocks chiming.
• Added subtitles for waxing and removing wax from copper blocks.
  • These are "Wax on" and "Wax off", but are not triggered in-game.<ref name="subtitle">Template:Bug</ref>
• Changed the subtitles for stripping logs and wood from "Axe scrapes" to "Axe strips".
  • "Axe scrapes" is now used for copper blocks. However, it is not triggered in-game.<ref name="subtitle"/>

General

Minecraft:Tags

• Added cave vines and cave vines plant to the climbable block tag.
• Added tuff to the deepslate_ore_replaceables block tag.
• Added tinted glass to the impermeable block tag.
• Removed tuff from the stone_ore_replaceables block tag.

Trivia

• This version has the same Minecraft:data version as Minecraft:Combat Test 7b, even though these versions should not be compatible with each other.
• 21w11a held the record for the largest number of bug fixes in a single snapshot, and the second highest of any development version, at 127. This record was beaten by Minecraft:24w33a.