26.1 Release Candidate 1 — release journal
What 26.1-rc-1 changed for data packs, measured against 26.1-pre-3, the build before it. Released 2026-03-19; 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
| 26.1-pre-3 | 26.1-rc-1 | |
|---|---|---|
| Data pack format | 101.1 | 101.1 |
| Resource pack format | 84.0 | 84.0 |
| Data version | 4782 | 4783 |
Registries
No registry gained, lost or changed an entry.
The official notes
Read the 26.1 Release Candidate 1 article on minecraft.net.
The article has no technical-changes section — it lists bug fixes only, or predates that heading.
Minecraft Wiki page for 26.1-rc-1.
In the journal
← 26.1-pre-3 · All builds · 26.1-rc-2 →
Sources
- misode/mcmeta — 26.1-rc-1 summary — formats and registries, generated from the game’s own data.
- minecraft.net — 26.1 Release Candidate 1 — section names only.