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21w10a is the thirteenth snapshot for Java Edition 1.17, released on March 10, 2021,[1] which adds lush caves and new deepslate variants.
Additions
Blocks
- Added a cracked variation of deepslate bricks.
- Added a cracked variation of deepslate tiles.
- Added deepslate ore variants for copper, emerald and coal ore.
- Do not generate by default; they only have been added for use by creators of maps and data packs.
- Like other deepslate ores, they can be used in blasting and smelting recipes like normal ores.
- Again, like other deepslate ores, they will unlock these recipes in the recipe book.
- An infested variant of deepslate.
World generation
- Generate above lush caves, either on surface or underground.
- Consist of azalea leaves (both variants), oak logs and rooted dirt.
- Currently the biome is only accessible in single-biome worlds.
- Adaptive to the environment: every type of cave generation can be a lush cave.
- Moss covers the floors and ceilings, along with moss carpets and grass on the floors.
- Spore Blossoms grow from the ceiling and drip particles.
- Contains clay pools where dripleaf plants grow out of them.
- Contains azalea bushes (both variants).
- Cave vines with glow berries grow from the ceiling and light up the caves.
General
- Added the
coal_ores,copper_ores, andemerald_oresblock and item tags.- Contain both the normal and deepslate ores of each ore type.
- Added the
lush_ground_replaceableblock tag.- Contains the #lush_plants_replaceable block tag, clay, and moss block.
Changes
Blocks
- The texture has been changed.
- Can now be smelted back into deepslate.
- Both the top and sides textures have been changed.
- Deepslate can now be placed along any axis.
- Textures in caves now generate with a random rotation.
- Can now be crafted.
- Coal ore, deepslate diamond ore, deepslate gold ore, deepslate iron ore, deepslate lapis ore, deepslate redstone ore, diamond ore, gold ore, iron ore
- The textures of these ores have been changed.
- Iron ore and deepslate iron ore no longer have streaks, better matching the appearance of other ores.
- Diamond ore closer resembles deepslate diamond ore.
Items
- The item model has been changed back to a dedicated texture.
- Similar to tridents, the spyglass still uses a 3d model in the hand.
- The texture is different from the original item texture.
Mobs
- The maximum size that slimes can be summoned with is now 128.
World generation
- The fossils in the deepest part of the underground generate with Deepslate Diamond Ore instead of Coal Ore.
- Ore distribution
The new ore generation for 21w10a
- Now generates more emerald ore in mountains.
- Now generates more lapis lazuli ore.
- Now generates less copper ore, gold ore, and redstone ore.
- Now generates smaller diamond ore blobs, but slightly more frequent (less diamond ore overall though).
- Now generates less iron ore, and it generates lower down.
- Reduced air exposure for coal ore.
Command format
/give
- The give command can only give up to 100 stacks of items at a time (e.g. 6400 stone or 100 iron swords)
General
- Game library updates
- The game now runs using OpenGL 3.2 core profile.
- Changed the splash "OpenGL 2.1 (if supported)!" to "Now on OpenGL 3.2 core profile!"
- Glow item frames have their own subtitles, no longer using the same subtitles as normal item frames.
- Removed moss block, the #flowers block tag, grass, tall grass, moss carpet, small dripleaf, big dripleaf, big dripleaf stem, and vines from the
lush_plants_replaceableblock tag. - Removed the
azalea_log_replaceableblock tag.
Fixes
- 33 issues fixed
- From released versions before 1.17
- MC-29318 – Client misses inventory updates while player is manipulating items - causes invisible items.
- MC-84121 – Shape of glow effect is based on mob's base layer.
- MC-87019 – Only visible slots are updated clientside when you are inside an inventory.
- MC-154094 – Lectern running
/clearturns items into ghost items. - MC-175964 – Setblock command run by book in lectern to clear inventory run in command block causes ghost items.
- MC-201316 – The
/givecommand can create so many items that the game will freeze. - MC-210408 –
/spawnpointallows players to set their spawnpoint to out-of-bounds coordinates, which crashes the game when trying to respawn. - MC-214629 – FOV decreases when underwater regardless of FOV Effects accessibility setting.
- MC-218139 – Inconsistent visual zooming within blocks and water in Spectator mode(in-game).
- From the 1.17 development versions
- MC-207818 – Placing a sign from the offhand closes the sign UI immediately.
- MC-208301 –
/cleardoes not properly affect the item on the mouse pointer after crafting it. - MC-211666 – Guardians attack invisible axolotls.
- MC-212127 – Normal ink sac and glow ink sac are not grouped in the creative inventory.
- MC-212144 – Subtitles refer to Glow Item Frame as "Item Frame".
- MC-212168 – Ctrl + Pick Block doesn't copy block state "lit".
- MC-212236 – Cannot visually critical-hit a glow squid (No sound/particles).
- MC-212314 – Glow squid remains dark even if there is a light source block next to it.
- MC-212325 – Glow Squid entity data (potion effects, custom name, ...) does not get saved.
- MC-214781 – Lava does not generate at the very bottom of noise caves.
- MC-214784 – Fossils can generate floating in caves.
- MC-214836 – Water caves cause land to be excessively flooded.
- MC-214844 – Bedrock can be exposed to the air at the very bottom of the new caves.
- MC-214970 – Phantoms continously make too much flapping sounds.
- MC-215194 – Structure blocks do not work below y=0.
- MC-215838 – There is currently no way to craft deepslate tiles and deepslate bricks.
- MC-215850 – Deepslate Tile Wall comes before Deepslate Brick Wall but Deepslate Bricks come before Deepslate Tiles in creative inventory.
- MC-215939 – Emerald ore spawns in lower frequencies than it should above y=100.
- MC-216136 – Polished deepslate slab isn't grouped with the other deepslate slabs in creative inventory.
- MC-216363 – Crash upon replacing soul sand or magma with the other under a tall bubble column using
/setblock. - MC-216735 – Stone Lapis Ore generating in Deepslate.
- MC-216736 – Lava lakes generate exposed in caves.
- MC-216765 – Coal ore can generate below Y=0 when attached to a fossil.
- MC-216817 – Inconsistency: Cobbled deepslate cannot be smelted back into deepslate.
References
- ↑ "Minecraft Snapshot 21w10a" – Minecraft.net, March 10, 2021