25w43a — release journal
What 25w43a changed for data packs, measured against 25w42a, the build before it. Released 2025-10-21; development build — not a release.
📌 Additive
6 entries added and nothing removed. Existing packs keep their references; new content is available.
Formats
| 25w42a | 25w43a | |
|---|---|---|
| Data pack format | 90.0 | 91.0 moved |
| Resource pack format | 70.1 | 71.0 moved |
| Data version | 4654 | 4655 |
Registries
6 entries added and 0 removed across 5 registries.
| Registry | Change | Added | Removed |
|---|---|---|---|
enchantment_entity_effect_type | changed | apply_exhaustion | — |
enchantment_location_based_effect_type | changed | apply_exhaustion, apply_impulse | — |
loot_function_type | changed | discard | — |
sound | changed | item/underwater_saddle/underwater_equip | — |
sound_event | changed | item.underwater_saddle.equip | — |
The official notes
Read the 25w43a article on minecraft.net.
That article's technical changes are grouped under these headings — open it for the detail:
- Data Pack Version 91.0
- Commands
- Loot Functions
- Enchantments
- Resource Pack Version 71.0
- Textures
- Sounds
Minecraft Wiki page for 25w43a.
In the journal
← 25w42a · All builds · 25w44a →
Sources
- misode/mcmeta — 25w43a summary — formats and registries, generated from the game’s own data.
- minecraft.net — 25w43a — section names only.