26.1 Pre-Release 1 — release journal
What 26.1-pre-1 changed for data packs, measured against 26.1-snapshot-11, the build before it. Released 2026-03-10; development build — not a release.
⚠ Entries removed
28 registry entries were removed. A pack that names one of them will fail to parse where it does.
Formats
| 26.1-snapshot-11 | 26.1-pre-1 | |
|---|---|---|
| Data pack format | 100.0 | 101.0 moved |
| Resource pack format | 83.0 | 84.0 moved |
| Data version | 4779 | 4780 |
Registries
27 entries added and 28 removed across 7 registries.
| Registry | Change | Added | Removed |
|---|---|---|---|
tag/worldgen/configured_feature | new registry | can_spawn_from_bone_meal | — |
attribute_type | changed | integer | — |
int_provider_type | changed | trapezoid | — |
loot_condition_type | changed | environment_attribute_check | — |
loot_number_provider_type | changed | environment_attribute | — |
worldgen/configured_feature | changed | berry_bush, brown_mushroom, bush, cactus, crimson_roots, dead_bush, dry_grass, firefly_bush, grass, grass_jungle, large_fern, leaf_litter, melon, pale_forest_flower, pumpkin, red_mushroom, sugar_cane, sunflower, taiga_grass, tall_grass, waterlily, wildflower | pale_forest_flowers, patch_berry_bush, patch_brown_mushroom, patch_bush, patch_cactus, patch_crimson_roots, patch_dead_bush, patch_dry_grass, patch_firefly_bush, patch_grass, patch_grass_jungle, patch_grass_meadow, patch_large_fern, patch_leaf_litter, patch_melon, patch_pumpkin, patch_red_mushroom, patch_sugar_cane, patch_sunflower, patch_taiga_grass, patch_tall_grass, patch_waterlily, single_piece_of_grass, wildflowers_birch_forest, wildflowers_meadow |
worldgen/feature | changed | — | flower, no_bonemeal_flower, random_patch |
The official notes
Read the 26.1 Pre-Release 1 article on minecraft.net.
That article's technical changes are grouped under these headings — open it for the detail:
- Data Pack Version 101
- Commands
- Data Components
- Loot Functions
- Predicates
- Number Providers
- World Generation
- Tags
- Text components
- Resource Pack Version 84
- Item Models
- Block State Rendering
- Shaders & Post-process Effects
Minecraft Wiki page for 26.1-pre-1.
In the journal
← 26.1-snapshot-11 · All builds · 26.1-pre-2 →
Sources
- misode/mcmeta — 26.1-pre-1 summary — formats and registries, generated from the game’s own data.
- minecraft.net — 26.1 Pre-Release 1 — section names only.