Datapack Codex

1.21.2 Pre-Release 1 — release journal

What 1.21.2-pre1 changed for data packs, measured against 24w40a, the build before it. Released 2024-10-08; development build — not a release.

📌 Additive

17 entries added and nothing removed. Existing packs keep their references; new content is available.

Formats

24w40a1.21.2-pre1
Data pack format56.057.0 moved
Resource pack format40.041.0 moved
Data version40724073

Registries

17 entries added and 0 removed across 5 registries.

RegistryChangeAddedRemoved
recipe_book_categorynew registryblast_furnace_blocks, blast_furnace_misc, campfire, crafting_building_blocks, crafting_equipment, crafting_misc, crafting_redstone, furnace_blocks, furnace_food, furnace_misc, smithing, smoker_food, stonecutter—
experiment/winter_drop/tag/worldgen/biomechangedis_overworld—
slot_displaychangedwith_remainder—
sound_eventchangedui.hud.bubble_pop—
texturechangedgui/sprites/hud/air_empty—

The official notes

Read the 1.21.2 Pre-Release 1 article on minecraft.net.

That article's technical changes are grouped under these headings — open it for the detail:

Minecraft Wiki page for 1.21.2-pre1.

In the journal

← 24w40a · All builds · 1.21.2-pre2 →

Sources