Java Edition 21w08a

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Minecraft 21w08a
Edition

Java Edition

Type

Snapshot

Release date

February 24, 2021

Snapshot for

1.17

Downloads

Client (.json)
Server

Obfuscation maps

Client
Server

Protocol version

 dec: 1073741840
 hex: 40000010

Data version

2697

21w08a is the eleventh snapshot for Java Edition 1.17, released on February 24, 2021,[1] which renames grimstone to deepslate, adds deepslate ores, and makes changes to cave generation.

Additions[edit]

Blocks[edit]

Cobbled Deepslate
  • Drops from deepslate when mined with a pickaxe without Silk Touch.
  • Functions identical to cobblestone and blackstone in that it can be used to craft basic tools, furnaces, and brewing stands.
  • Is used to craft all the deepslate variant blocks instead of regular deepslate.
  • Has wall, stair, and slab variants as well.
Deepslate Ore
  • Added deepslate variants of diamond, iron, gold, lapis lazuli, and redstone ores.
  • Takes twice as long to mine as normal ores.
  • Has the texture of deepslate replacing the normal stone texture.
  • Takes place of ores that generate in deepslate.
    • Normal stone ores may still generate deep underground if they replace a different block, such as tuff.
  • Can be used in blasting and smelting recipes like normal ores.
    • These recipes can be unlocked in the recipe book with deepslate ores as well.
Smooth Basalt

World generation[edit]

Crack carvers
  • Deep, long cracks in the ground that are thinner and straighter than canyons.[2]
  • Can reach over 90 blocks in depth.
  • They are very similar to ravines in Bedrock Edition.

General[edit]

Tags
  • Added the deepslate_ore_replaceables block tag.
    • Contains deepslate.
  • Added the diamond_ores, iron_ores, lapis_ores and redstone_ores block and item tags.
    • Contain the normal and deepslate variants of each ore type.
  • Added the stone_ore_replaceables block tag.
    • Contains stone, granite, diorite, andesite, and tuff.

Changes[edit]

Blocks[edit]

Blackstone, deepslate, polished deepslate, chiseled deepslate, deepslate bricks, deepslate tiles and stair, slab and wall variants
  • Texture has been tweaked slightly.
Gold ore
Coal ore, copper ore, emerald ore, iron ore, lapis lazuli ore, redstone ore
  • Tweaked texture.
Deepslate
  • Renamed from "Grimstone".
  • Is no longer used to craft or repair any blocks or items.
  • Has new unique breaking, placing, and footsteps sounds.
  • Can only be mined with a Silk Touch pickaxe.
Spore blossoms
  • Particles now appear in the air around the block.

World generation[edit]

Amethyst geodes
  • Can no longer generate fully in midair.
  • The tuff layer has been replaced with smooth basalt.
Andesite
  • No longer generates below Y=0.
Caves
  • Tweaked cave sizes.[3]
  • Ravines and regular cave carvers now generate below Y=0.
  • Added more variation to carvers.[4]
  • Caves are now more filled with water.
Glow lichen
  • Generates almost twice as often.[5]
Lava
  • Once again generates at the bottom of the world starting at Y=-54.
  • Lava springs can now generate below Y=0.
Water
  • Water springs can now generate below Y=0


Mineral distribution
  • Ore distribution has been changed again.
    • Iron now generate below Y = 0, but in smaller veins and not as frequently.
      • This was determined to be a bug, which was fixed in snapshot 21w08b.
    • Gold is a little more common, but with 50% blocks exposed to air skipped.
    • Diamond is the same, but with 50% blocks exposed to air skipped as well.
    • Increased frequency of buried lapis.
    • Copper is now less common.
Mineshafts
  • Now generate again in the open air in caves.
  • No longer appear floating.
Tuff

General[edit]

Creative inventory
  • Slime blocks and honey blocks have been moved to the Redstone tab.
    • The categories of the recipes for these blocks in the recipe book have moved as well.
  • Lectern position within the Redstone tab has been moved out of the "essential" group.
Tags
  • Added tuff to the base_stone_overworld block tag.
  • Added deepslate gold ore to the gold_ores block and item tags.

Fixes[edit]

3 issues fixed
From the 1.17 development versions
  • MC-213926 – Rooted dirt footstep sounds are considerably quieter than normal dirt footstep sounds.
  • MC-214782 – Geodes can generate floating in caves.
  • MC-214843 – Old style caves do not generate past Y=0.

Video[edit]

Videos made by slicedlime:

References[edit]