26.3 — release journal
What 26.3 changed for data packs, measured against 26.3-rc-3, the build before it. Released 2026-09-15; 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
| 26.3-rc-3 | 26.3 | |
|---|---|---|
| Data pack format | 121.0 | 121.0 |
| Resource pack format | 97.1 | 97.1 |
| Data version | 5022 | 5023 |
Registries
No registry gained, lost or changed an entry.
The official notes
Read the 26.3 article on minecraft.net.
That article's technical changes are grouped under these headings — open it for the detail:
- Windowing and Input Backend
- Server Properties
- Minecraft Server Management Protocol 3.1.0
- Data Pack Versions 108.0 through 121.0
- Commands
- Environment Attributes
- Data Components
- Trim Materials
- Instruments
- Entity Data
- Block Entity Data
- Advancements
- Slot Sources
- Loot Tables
- Loot Functions
- Predicates
- Number Providers
- Integer Number Providers
- Float Number Providers
- Recipes
- Block Transformers
- World Generation
- Int Providers
- Villager Trades
- Tags
- Particles
- Resource Pack Versions 89.0 through 97.1
- Palette Textures
- Equipment Assets
- Block Sprites
- Item Sprites
- UI Sprites
- Entity Textures
- Map Sprites
- Block Crumbling Overlay Textures
- Sounds
- Particles
- Item Models
- Shaders & Post-process Effects
In the journal
← 26.3-rc-3 · All builds · 26.4-snapshot-1 →
Sources
- misode/mcmeta — 26.3 summary — formats and registries, generated from the game’s own data.
- minecraft.net — 26.3 — section names only.