Java Edition 1.21.10 Release Candidate 1

Minecraft 1.21.10 Release Candidate 1
1.21.10-rc1.jpg: Infobox image for Minecraft 1.21.10 Release Candidate 1 the version in Minecraft
Java Edition 1.21.10 Release Candidate 1.png: Infobox image for Minecraft 1.21.10 Release Candidate 1 the version in Minecraft
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

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

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.

Video

Video made by Slicedlime:

References

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