1.21.6 — release journal

What 1.21.6 changed for data packs, measured against 1.21.6-rc1, the build before it. Released 2025-06-17; full release.

📌 Additive

2 entries added and nothing removed. Existing packs keep their references; new content is available.

Formats

1.21.6-rc11.21.6
Data pack format80.080.0
Resource pack format63.063.0
Data version44344435

Registries

2 entries added and 0 removed across 1 registry.

RegistryChangeAddedRemoved
langchangedqcb_es, qid—

The official notes

Read the 1.21.6 article on minecraft.net.

That article's technical changes are grouped under these headings — open it for the detail:

Minecraft Wiki page for 1.21.6.

In the journal

← 1.21.6-rc1 · All builds · 1.21.7-rc1 →

Sources