Compatibility
What works with Minecraft 1.21-pre1
Minecraft 1.21-pre1 needs Java 21 or newer. Released 29 May 2024. Everything below comes from the projects' own published data, and each row says how we know.
Java requirement
Java 21 or newer
Published by Mojang for this exact version. An older runtime will not start it. Get a verified build.
Server software
No server software in our catalogue has published a build for 1.21-pre1. For a snapshot that is normal: server projects usually wait for the full release.
Mod loaders
Support declared in each loader's own metadata.
- Quilt Loader0.31.0-beta.4declaredsupported
- Fabric Loader0.19.5declaredsupported
Frequently asked
Which Java version does Minecraft 1.21-pre1 need?
Java 21 or newer. Mojang publishes this requirement in the version metadata, so an older runtime will refuse to start the server.
Which server software supports 1.21-pre1?
No server software in our catalogue has published a build for 1.21-pre1 yet.
Is this information wrong or missing something? .