24w20a — release journal

What 24w20a changed for data packs, measured against 24w19b, the build before it. Released 2024-05-15; development build — not a release.

⚠ Format moved, no registry changed

The data pack format moved but no registry entry changed. That is not a no-op: the change is in file schemas — field shapes and required keys — which a registry diff cannot see. Read the article's technical sections below.

Formats

24w19b24w20a
Data pack format43.044.0 moved
Resource pack format33.033.0
Data version39423944

Registries

No registry gained, lost or changed an entry.

The official notes

Read the 24w20a article on minecraft.net.

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

Minecraft Wiki page for 24w20a.

In the journal

← 24w19b · All builds · 24w21a →

Sources