Java Edition 1.21.1

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This article is reproduced from Java Edition 1.21.1 on the Minecraft Wiki. Mirrored from revision 3712262. It is licensed CC BY-NC-SA 3.0 by the Minecraft Wiki contributors — not under the Codex’s CC BY-SA 4.0, and it may not be used commercially. Edits belong upstream, not here.

Minecraft 1.21.1
1.21.1 banner.jpg: Infobox image for Minecraft version 'Minecraft 1.21.1'
Java Edition 1.21.1.png: Infobox image for Minecraft version 'Minecraft 1.21.1'
Other editions with a version "1.21.1":
 

1.21.1 is a hotfix to Java Edition released on August 8, 2024,[1] which fixes critical exploits including block entity swap, and adds two new languages. Servers running this version are compatible with 1.21 clients.

Additions

General

Languages

Fixes

4 issues fixed

From released versions before 1.21

  • MC-254899 – Sitting/standing a tamed cat does not trigger minecraft:player_interacted_with_entity
  • MC-260689 – Arm spins when swimming with a loaded Crossbow in your offhand

Private issues

  • Fixed block entity swap based update suppression as shown in this video.
  • Fixed an exploit which allows modified clients to crash the server by requesting command completion for a malicious target selector input, causing a crash due to stack exhaustion.

Videos

Video made by slicedlime:

References

  1. ↑ "Minecraft Java Edition 1.21.1" – Minecraft.net, August 8, 2024.

Sources