1.15.1 Pre-release 1 — release journal

What 1.15.1-pre1 changed for data packs, measured against 1.15, the build before it. Released 2019-12-12; development build — not a 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

1.151.15.1-pre1
Data pack format5.05.0
Resource pack format5.05.0
Data version22252226

Registries

No registry gained, lost or changed an entry.

The official notes

Read the 1.15.1 Pre-release 1 article on minecraft.net.

The article has no technical-changes section — it lists bug fixes only, or predates that heading.

Minecraft Wiki page for 1.15.1-pre1.

In the journal

← 1.15 · All builds · 1.15.1 →

Sources