Datapack Codex

Java Edition 1.21.1/Development versions

Minecraft Wiki article. Categories: Pages_using_DynamicPageList4, Development_version_lists

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This article is reproduced from Java Edition 1.21.1/Development versions on the Minecraft Wiki. Mirrored from revision 3431202. 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.

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This is a list of Java Edition 1.21.1 development versions.

1.21.1 Release Candidate 1

1.21.1 Release Candidate 1 (known as 1.21.1-rc1 in the launcher) is the first and only release candidate for Java Edition 1.21.1, released on August 7, 2024,[1] which fixes two critical exploits including update suppression and adds two new languages.

Additions

General

Languages

Fixes

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.

Notes and references

  1. ↑ "Minecraft 1.21.1 Release Candidate 1" – Minecraft.net, August 7, 2024.

Sources