1.21.7 Release Candidate 1 — release journal
What 1.21.7-rc1 changed for data packs, measured against 1.21.6, the build before it. Released 2025-06-25; development build — not a release.
📌 Additive
9 entries added and nothing removed. Existing packs keep their references; new content is available.
Formats
| 1.21.6 | 1.21.7-rc1 | |
|---|---|---|
| Data pack format | 80.0 | 80.0 |
| Resource pack format | 63.0 | 63.0 |
| Data version | 4435 | 4436 |
Registries
9 entries added and 0 removed across 8 registries.
| Registry | Change | Added | Removed |
|---|---|---|---|
item | changed | music_disc_lava_chicken | — |
item_definition | changed | music_disc_lava_chicken | — |
jukebox_song | changed | lava_chicken | — |
model | changed | item/music_disc_lava_chicken | — |
painting_variant | changed | dennis | — |
sound | changed | records/lava_chicken | — |
sound_event | changed | music_disc.lava_chicken | — |
texture | changed | item/music_disc_lava_chicken, painting/dennis | — |
The official notes
Read the 1.21.7 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 1.21.7-rc1.
In the journal
← 1.21.6 · All builds · 1.21.7-rc2 →
Sources
- misode/mcmeta — 1.21.7-rc1 summary — formats and registries, generated from the game’s own data.
- minecraft.net — 1.21.7 Release Candidate 1 — section names only.