Minecraft 1.21.10

Everything below is measured by comparing the game files of 1.21.9 with 1.21.10 — not copied from patch notes.

Read from Mojang’s own release notes for Minecraft: Java Edition 1.21.10, published 2025-10-07. Every entry keeps its original bug ID.

6 issues fixed, read from Mojang’s own patch notes. Each entry keeps its original bug ID.

Fixed bugs in 1.21.10 6

• MC-211096 Entities in cobwebs clip though pistons
• MC-278182 Items glitch inside the piston head when pushed through powder snow or cobwebs
• MC-301916 The behavior of wind charges when colliding with certain blocks is different
• MC-302321 Chunks don't 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/chain command blocks with any form of a '/tp ' command doesn't constantly teleport the player to one spot

Every build Mojang published on the way to 1.21.10, in order.

1. Release candidate

   1

   The build Mojang intends to ship unless a blocking bug turns up.

   1.21.10-rc1

2. Release

   1.21.10

   The build that shipped. Everything above led here.