Datapack Codex

1.21.11 Pre-Release 3 — release journal

What 1.21.11-pre3 changed for data packs, measured against 1.21.11-pre2, the build before it. Released 2025-11-25; development build — not a release.

💡 No measured change

Same data pack format, same registries. That is the strongest safe-for-data-packs signal a diff can give, and it is still not proof — behaviour changes and bug fixes are invisible to it.

Formats

1.21.11-pre21.21.11-pre3
Data pack format94.094.0
Resource pack format75.075.0
Data version46644665

Registries

No registry gained, lost or changed an entry.

The official notes

Read the 1.21.11 Pre-Release 3 article on minecraft.net.

The article has no technical-changes section — it lists bug fixes only, or predates that heading.

Minecraft Wiki page for 1.21.11-pre3.

In the journal

← 1.21.11-pre2 · All builds · 1.21.11-pre4 →

Sources