1.21.5 — release journal
What 1.21.5 changed for data packs, measured against 1.21.5-rc2, the build before it. Released 2025-03-25; 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
| 1.21.5-rc2 | 1.21.5 | |
|---|---|---|
| Data pack format | 71.0 | 71.0 |
| Resource pack format | 55.0 | 55.0 |
| Data version | 4324 | 4325 |
Registries
No registry gained, lost or changed an entry.
The official notes
Read the 1.21.5 article on minecraft.net.
That article's technical changes are grouped under these headings — open it for the detail:
- Game Test Entry Point
- Network Protocol
- Data Pack Versions 62 through 71
- Game Tests
- Game Rules
- Uniform Variant Selection
- Data-driven Mob Variants
- Commands
- NBT Changes
- SNBT Changes
- Text Component Data Format
- Entity Data
- Block Entity Data
- Data Components
- Predicates
- Loot Functions
- Recipes
- Trim Patterns and Trim Materials
- World Generation
- Tags
- Particles
- Resource Pack Version 47 through 55
- Block Sprites
- Item Sprites
- Sound Events
- Particles
- New and Updated Pig Textures
- New and Updated Cow Textures and Model
- New and Updated Chicken Textures
- Updated Sheep Textures
- Equipment Assets
- Item Models
- Atlas
- Shaders & Post-process Effects
- Item Rendering
Minecraft Wiki page for 1.21.5.
In the journal
← 1.21.5-rc2 · All builds · 25w15a →
Sources
- misode/mcmeta — 1.21.5 summary — formats and registries, generated from the game’s own data.
- minecraft.net — 1.21.5 — section names only.