Minecraft 1.17 Snapshot 21w09a - Release Date & Patch Notes

Here is what we know about Minecraft Snapshot 21w09a so far.

March 3, 2021

Minecraft: Java Edition is receiving some exciting new snapshots every week, gearing up for the Caves and Cliffs Update which is set to release later this year. Last week, we received the 21w08a which renamed grimstone to deepslate, and also introduced the all-new deepslate ores in the game. It was quite a notable addition to the game and fans are eagerly looking forward to the next snapshot. Here is what we know about Minecraft Snapshot 21w09a so far.

Minecraft Snapshot 21w09a – Release Date & Patch Notes

Why has Snapshot 21w09a not released yet?

Minecraft Snapshot 21w09a was slated to release today. However, it seems like the snapshot’s release has been delayed due to some reason. Mikael “Slicedlime” Hedberg, the tech lead of Minecraft Java Game at Mojang tweeted that there will not be any snapshot this week. That being said, fans shouldn’t be disappointed because he further adds that a new snapshot can be expected next week. For now, there isn’t much known about what will be added in the next snapshot. Given that the past few snapshots have added quite a few interesting things in the game, we can expect the same from the next snapshot as well. Here is what we got in the last Minecraft Snapshot.

Minecraft Snapshot 21w08a – Patch Notes


  • Tweaked cave sizes further
  • Canyon and cave carvers now apply below y=0
  • Cracks can now be found carved into the ground
  • Grimstone has been changed into Deepslate
  • Added Deepslate ores
  • The distribution of ores has been further tweaked
  • Andesite no longer generates under y=0
  • Tuff now sometimes generates under y=0
  • The Tuff layer of amethyst geodes has been replaced with now a new type of stone called Smooth Basalt
  • Smooth Basalt is now obtained from smelting Basalt
  • Another round of tweaking has been done to the new textures of ores and Blackstone
  • Emerald and Lapis Lazuli ore textures have had some touch-ups
  • Mineshafts now once again generate in the open air in caves
  • Particles now appear in the air around spore blossoms
  • Slime Blocks and Honey Blocks have been moved to the Redstone tab of the creative inventory


  • Grimstone is now called Deepslate
  • Deepslate now has a top texture, and a new block called Cobbled Deepslate drops from Deepslate
  • The cobbled variant is the same but without the top texture, and is used to craft all Deepslate variants instead
  • Deepslate now has a unique set of sounds! Very crunchy indeed


  • Added Deepslate versions of Iron, Gold, Lapis, Redstone, and Diamond ores that generate wherever those ores replace Deepslate
  • Twice as tough to mine as normal ores


  • 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 don’t generate past Y=0
Md Armughanuddin

Md (He/Him) is the Head of Content- India for DualShockers. He is pursuing Computer Science Engineering and is really passionate about gaming and technology. You can find him cracking complex coding problems during the day, and covering the latest happenings in the industry at night.

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