Java Edition 21w11a

Minecraft 21w11a
Edition	Java Edition
Type	Snapshot
Release date	March 17, 2021
Snapshot for	1.17
Downloads	Client (.json) Server
Obfuscation maps	Client Server
Protocol version	0x40000013
Data version	2703

21w11a is the fourteenth snapshot for Java Edition 1.17 released on March 17, 2021, which fixes bugs, many of which are relating to textures and rendering issues, and adds new copper oxidation mechanics.

Additions

General

Controls

• Added F3 + L shortcut to generate and persist performance metrics from in-game, similar to /debug.
  • Metrics are saved in .minecraft/debug/profiling/<timestamp>.zip.

Particles

• Added the electric_spark, scrape, wax_off, and wax_on particles.

Tags

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

Changes

Blocks

Amethyst Cluster

• Breaking by hand, piston, or other means now only drops 2 amethyst shards instead of 4 with a pickaxe.

Azalea

• Can now be used as fuel in a furnace.

Big Dripleaf

• Breaking the stem now drops the block.
• Now can be bonemealed on the stem to make the Dripleaf grow.

Block of Copper, Cut Copper, and variants

• Honeycomb can now be used to wax them.
• Using a dispenser with honeycomb waxes them.
• Axes can scrape off wax and oxidation (one stage at a time).
• 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 striken block.
• Waxed copper blocks can be crafted into 4 copper ingots.

Brewing Stand

• Removed extra pixels from the potion icons in the brewing stand GUI.
• Removed some stray pixels from the GUI texture.

Cauldron

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

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 always give 14 light, regardless of the type of part.
• Now slow down the player.
• Can now be climbed.

Gilded Blackstone

• The texture has changed.

Glow Lichen

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

Grass Block

• Changed part of the dirt of the side texture of snowy grass.

Hanging Roots

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

Lightning Rod

• Can now be waterlogged.
• Now turns completely white when struck by lightning.
• Now 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 raining.

Lectern

• The model has changed.

Moss Block

• Can be combined with cobblestone or stone bricks to make the mossy versions of those blocks.
  • Vines can still be used, in addition to moss blocks.
• In addition to axes, hoes are now an appropiate tool to collect it.

Pumpkin

• Changed one pixel on the pumpkin's top texture.

Rooted Dirt

• Using bone meal on any side grows hanging roots underneath.

Signs

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

Small Dripleaf

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

Smoker

• Changed the top texture of the smoker.

Spore Blossom

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

Tinted Glass

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

Items

Jungle Doors

• Changed the texture of the jungle door item.

Spectral Arrows

• Fired spectral arrows are now entirely golden, matching the item texture.

Sugar Cane

• Changed the texture of the sugar cane item.

Mobs

Cats

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

Guardian and Elder Guardian

• Removed some stray pixels from the texture file.

Villagers and Zombie Villagers

• Changed the librarian overlay texture.

Non-mob entities

Paintings

• Changed the back texture to closer resemble plank textures in the Texture Update.

World generation

Caves

• Tweaked the cave sizes.

Lush caves

• Reduced the amount of floating water in lush caves.

Ore distribution

• Slightly increased the frequency of diamond ore blobs.
• If ore replaces tuff, it will now be deepslate ore.

Gameplay

Freezing

• Frozen hearts now have a different texture in Hardcore mode.

Spectator mode

• Now possible to see while inside lava and powder snow.

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.
• 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.

General

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.

Fixes

110 issues fixed

From released versions before 1.17

• MC-1483 – Snow covered grass/podzol/mycelium block side texture does not match original block.
• MC-12363 – Lava / water / powder snow bucket desync when using it while rapidly turning.
• MC-70850 – False negatives during occlusion culling.
• MC-71530 – Spectators can't see through lava.
• MC-145501 – Librarian and zombie librarian torso top texture is incorrect.
• MC-150054 – Spectral arrow texture on item and entity aren't consistent.
• MC-150784 – Brewing Stand bottle outline incorrect.
• MC-154006 – Overworld wood signs use the outdated wood texture on all sides.
• MC-160195 – Jungle door inventory texture is outdated.
• MC-160388 – Painting back texture has not been updated with the texture update.
• MC-195806 – Smoker's top and bottom textures have inconsistently colored pixels.
• MC-197561 – Carved pumpkins and jack o'lanterns create swastikas.
• MC-197883 – Jigsaw Structures causing DataFixer spam.
• MC-198805 – Floating pixel in the tailfin of a guardian/elder guardian.
• MC-202760 – area_effect_cloud does not enforce a maximum radius.
• MC-212123 – Player lighting is inconsistent in the inventory and appears darker on the front.
• MC-214568 – Setting a lectern on fire causes z-fighting.
• MC-216227 – Sugar cane item texture is no longer accurate from 13w36a forward.

From the 1.17 development versions

• MC-203554 – block.amethyst_block.chime has no subtitle.
• MC-203561 – Amethyst crystal cluster drops items when block is moved directly by a piston without actually breaking the block.
• MC-203623 – Inconsistency: Breaking amethyst crystals with hands doesn't drop the item, but breaking the block they are placed on drops them.
• MC-203676 – Tinted Glass suffocates entities inside of it.
• MC-203753 – Spyglass use statistic never increases.
• MC-203918 – Mobs can spawn on tinted glass.
• MC-204016 – When filling a lava cauldron with lava, the lava is placed on the ground, not in the cauldron. This also affects powder snow.
• MC-204862 – Tinted glass is not included in the impermeable tag.
• MC-205913 – Lightning rod can spawn skeleton horses with skeletons.
• MC-206787 – World Border is rendered upside down.
• MC-207557 – Frozen hearts in hardcore mode look identical to frozen hearts in survival mode.
• MC-211513 – Trident returning to owner not in the same world can cause permanent player kick.
• MC-212226 – Bone Meal can still be used on a Glow Lichen when it is unable to grow.
• MC-212410 – Cannot compost glow lichen.
• MC-213743 – Spectators can't see through powder snow.
• MC-213764 – Removing the block supporting a spore blossom allows the spore blossom to float.
• MC-213765 – Cave vine blocks are inconsistent in ID from other similar blocks.
• MC-213768 – Removing the support block for hanging roots allows it to float.
• MC-213778 – Cave vines cannot be climbed.
• MC-213782 – Cave vines do not slow you down like other vines.
• MC-213798 – Cave vines head and body emit different light levels.
• MC-213886 – Bone meal cannot be used on dripleaf stems.
• MC-213911 – Cave vines body and cave vines head share the same name.
• MC-213980 – Moss appropriate tool is axe rather than hoe.
• MC-215036 – Snow layers in "Snowy Kingdom" superflat preset generate 64 blocks above the ground.
• MC-215384 – Azaleas cannot be used as a fuel.
• MC-216134 – Gilded blackstone texture does not match the new side texture of blackstone.
• MC-216184 – Player takes no fall damage on blocks above Y=316.
• MC-216737 – When replacing tuff, ores still generate with a "stone" background below Y=0.
• MC-216945 – Teams become dysfunctional when any entity leaves the team.
• MC-216965 – Flat "slices" of terrain generating in cracks.
• MC-217303 – Potential optimization target in DepthBasedReplacingBaseStoneSource.
• MC-217546 – stat.fallOneCm is not updated when falling onto a block above Y=316.
• MC-217802 – Some blocks generate at wrong Y height in a superflat world.

From the previous development version

• MC-218587 – Lightning rod still can't be waterlogged.
• MC-218594 – Debug chunk borders don't render properly.
• MC-218596 – Debug pie is blacked out.
• MC-218597 – Water has no fog anymore.
• MC-218603 – Screen turns dark grey when switching dimension.
• MC-218604 – Hanging roots can generate hanging on other hanging roots, making them float.
• MC-218609 – Mipmapping causes some block faces to become too dark.
• MC-218610 – Banners are unimpacted by light levels.
• MC-218626 – Cannot enchant items.
• MC-218635 – With fast graphics, the freezing overlay renders black, and covers the whole screen black in first person.
• MC-218640 – Broken spyglass overlay on fast graphics.
• MC-218641 – Red vignette shown when outside the world border is too intense.
• MC-218645 – The carved pumpkin overlay turns the screen completely black when using fast graphics.
• MC-218652 – The green nausea overlay no longer renders.
• MC-218653 – Glowing effect no longer changes to team color.
• MC-218655 – Floating water generates excessively in lush caves.
• MC-218660 – The nether portal overlay no longer renders, whilst using fast graphics.
• MC-218695 – Shulkers do not flash red when hurt or killed.
• MC-218712 – Debug pie has purple box when moving an enchanted item.
• MC-218713 – Right clicking to open alternate recipes does not show the recipes.
• MC-218729 – Noise cave entrances cause unnatural, smooth edges in terrain.
• MC-218734 – Caves generate with very blocky areas.
• MC-218748 – At sunset, a blue line appears in the northern and southern skies.
• MC-218753 – Ambient occlusion of the player seen in the survival inventory has changed.
• MC-218765 – Glowing effect no longer renders around translucent pixels.
• MC-218793 – Two white lines appear on the Mojang loading screen.
• MC-218817 – Cave Vines can generate without supporting blocks.
• MC-218825 – M1 ARM Macs crash when using Fabulous Graphics mode as was the case in older versions, but no lack of support warning is shown.
• MC-218830 – World border is white.
• MC-218834 – You can see block hitboxes very clearly under powder snow/lava.
• MC-218845 – Mojang logo screen flashes blue before changing to red.
• MC-218852 – World border is occasionally shown as a solid color upon being loaded.
• MC-218877 – The red flash when a mob is hurt/killed appears to be slightly dimmed.
• MC-218881 – When selecting text in the end, the sky gets highlighted.
• MC-218911 – The background of hover-event text becomes blue when text is selected in an anvil or chat.
• MC-218945 – Spyglass has a gradient effect while freezing.
• MC-218979 – Cave ceilings and floors sometimes too flat or blocky.
• MC-218988 – Fire is rendered dark in the player/horse/llama UI.
• MC-218990 – Transparency buffers start with blue background instead of empty background.
• MC-219002 – The wither's wither armor has a blue aura around it.
• MC-219006 – The background opacity of subtitles and chat, are affected by a potion effect UI fading out.
• MC-219014 – Charged creeper layer makes clouds and entities invisible.
• MC-219036 – World border is shown as a solid color when picking up items or experience orbs.
• MC-219039 – World border does not render when below the world.
• MC-219049 – Reloading resource packs no longer shows the progress bar while the transparent background is shown.
• MC-219105 – Entity hitboxes can be seen whilst inside of powder snow/lava.
• MC-219108 – Chat scroll bar is offset.
• MC-219111 – Social interactions scroll bar appears broken.
• MC-219126 – Spyglass allows looking through blocks.
• MC-219155 – Cast fishing line is disconnected from the rod.
• MC-219180 – Slime blocks, honey blocks, stained glass, and ice are fully lit when moved by pistons.
• MC-219208 – Using enchanted items allows looking through blocks.
• MC-219212 – Entity shadows can be seen whilst inside of powder snow/lava.
• MC-219224 – The background opacity of command syntax help is affected when highlighting text.
• MC-219278 – Being inside of a block no longer shows the block texture.
• MC-219281 – Dying ender dragon is rendered too bright.
• MC-219392 – Lead/fishing line is no longer affected by the fog from powder snow/lava.
• MC-219597 – End portal and end gateway textures expand as the player travels further from the block.

Video

Videos made by slicedlime:

Trivia

• This version has the same data version as Combat Test 7b even though these versions should not be compatible with each other.