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Java Edition 1.21.10 Release Candidate 1

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Minecraft 1.21.10 Release Candidate 1
Edition Java Edition
Release date October 2, 2025
Type Release Candidate
Release candidate for 1.21.10
Downloads Client (.json)
Server
Obfuscation maps Client
Server
Protocol version  dec1073742098
 hex40000112
Data version 4555
Resource pack format 69.0
Data pack format 88.0
Minimum Java version Java SE 21
β—„β—„  1.21.9 1.21.10 1.21.11 β–Ίβ–Ί
1.21.10 Release Candidate 1
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1.21.10 Release Candidate 1 (known as 1.21.10-rc1 in the launcher) is the first and only release candidate for Java Edition 1.21.10, released on October 2, 2025.[1]

Fixes

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7 issues fixed

From released versions before 1.21

  • MC-211096 – Entities in cobwebs clip through pistons.
  • MC-278182 – Items glitch inside the piston head when pushed through powder snow or cobwebs.

From 1.21.9

  • MC-301916 – The behavior of wind charges when colliding with certain blocks is different.
  • MC-302321 – Chunks do not load while the player is being teleported.
  • MC-302383 – Rooms with carpet on the floor cannot have maps in item frames placed on walls touching the floor.
  • MC-302405 – Repeating (or chain) command block with any form of /tp [player] doesn't constantly tp player to one spot.
  • Fixed an issue that caused entities on bubble columns to fly high up into the air.

Trivia

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  • This version has the same protocol version number as 25w42a. The two versions are not actually compatible; 1.21.10-rc1 throws a "Network Protocol Error" message when attempting to join a 25w42a world, and 25w42a crashes when attempting to join a 1.21.10-rc1 world.

Videos

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Video made by slicedlime:

References

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Navigation

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