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Release Java Edition Hotfix Patch of 1.21.2 Bundles of Bravery

Minecraft 1.21.3

Released on 23 October 2024, Minecraft Java Edition 1.21.3 is a hotfix for 1.21.2, the Bundles of Bravery drop, which came out the day before. It fixes a critical error when joining a Realm with a resource pack enabled and the shrinking of Salmon from older worlds.

Released 23 Oct 2024 Resource pack format 42 Data version 4082
Are my mods ready?

Key takeaways

  • Realms: joining a Realm with a resource pack enabled no longer fails with an error.
  • Salmon: Salmon from 1.21.1 or earlier no longer shrink when a world is updated, and small Salmon from previous versions become medium.
  • No new content: features are unchanged from 1.21.2 Bundles of Bravery.

What changed

FixesMC-277791: attempting to join a Realm with a resource pack enabled failed with an error.
FixesMC-277779: Salmon from 1.21.1 or before shrank when updating to 1.21.2.
MobsAny small Salmon from previous versions, including 1.21.2, is upgraded to the medium variant.

Source: official Java Edition 1.21.3 changelog

Mods & loaders for 1.21.3

Mods must be rebuilt for each version. Counts from the files published on Modrinth and CurseForge, in our catalog.

LoaderMods with a 1.21.3 fileLatest build
Fabric1920.20.1
NeoForge16221.3.100
Forge7853.1.16
Quilt68·
Shader loadersShaders with a 1.21.3 fileLatest build
Iris104·
OptiFine71·
Popular mods Sodium · AvailableJust Enough Items (JEI) · Not yetFabric API · AvailableLithium · AvailableIris Shaders · AvailableOptiFine · Available
210 mods in our catalog have a 1.21.3 file →

224 texture packs and 54 maps in our catalog support 1.21.3.

How to play 1.21.3

  1. 01

    Open the Minecraft Launcher and select Minecraft: Java Edition.

  2. 02

    Go to Installations, create a new installation and choose version 1.21.3.

  3. 03

    Back up your worlds before opening them in a new version.

Minecraft 1.21.3 FAQ

When was Minecraft 1.21.3 released?

On 23 October 2024, for Java Edition, one day after 1.21.2 Bundles of Bravery.

What does Minecraft 1.21.3 fix?

Two bugs: Realms that failed to load with a resource pack enabled (MC-277791) and Salmon that shrank when worlds from 1.21.1 or earlier were updated (MC-277779).

Should I update from 1.21.2 to 1.21.3?

Yes, especially if you play on Realms with a resource pack. Select Latest Release in the Minecraft Launcher to install it.