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Java Edition 1.21.1 Release Candidate 1

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Minecraft 1.21.1 Release Candidate 1
Edition Java Edition
Release date August 7, 2024
Type Release Candidate
Release candidate for 1.21.1
Downloads Client (.json)
Server
Obfuscation maps Client
Server
Protocol version  dec1073742028
 hex400000CC
Data version 3954
Resource pack format 34
Data pack format 48
Minimum Java version Java SE 21
β—„β—„  1.21 1.21.1
1.21.1 Release Candidate 1

1.21.2 β–Ί

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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

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General

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Languages

Fixes

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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

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Video made by slicedlime:

References

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

Navigation

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