1.21.11 — release journal
What 1.21.11 changed for data packs, measured against 1.21.11-rc3, the build before it. Released 2025-12-09; full 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-rc3 | 1.21.11 | |
|---|---|---|
| Data pack format | 94.1 | 94.1 |
| Resource pack format | 75.0 | 75.0 |
| Data version | 4670 | 4671 |
Registries
No registry gained, lost or changed an entry.
The official notes
Read the 1.21.11 article on minecraft.net.
That article's technical changes are grouped under these headings — open it for the detail:
- Minecraft Server Management Protocol Version 2.0.0
- Data Pack Versions 89.0 through 94.1
- Zombie Nautilus Variants
- Commands
- Game Rules
- Game Tests
- Timelines
- Environment Attributes
- Data Components
- Entity Data
- Advancements
- Damage Types
- Slot Sources
- Loot Tables
- Loot Functions
- Predicates
- Enchantments
- World Generation
- Tags
- Resource Pack Versions 70.0 through 75.0
- Textures
- Item Sprites
- UI Sprites
- Celestials Atlas
- Mob Effect Sprites
- Entity Textures
- Sounds
- Item Models
- Block Models
- Block State Model Dispatch
- Shaders & Post-process Effects
Minecraft Wiki page for 1.21.11.
In the journal
← 1.21.11-rc3 · All builds · 26.1-snapshot-1 →
Sources
- misode/mcmeta — 1.21.11 summary — formats and registries, generated from the game’s own data.
- minecraft.net — 1.21.11 — section names only.