Compatibility
What works with Minecraft 25w41a
Released 9 Oct 2025. 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 with builds
Real, downloadable builds for 25w41a.
Mod loaders
Support declared in each loader's own metadata.
- Sponge25w41a-18.0.0-RC2382inferredsupported
- Fabric Loader0.19.3declaredsupported
- Quilt Loader0.30.1-beta.2declaredsupported
Clients that can join
Protocol 1073742097 is shared with these versions, so they can connect without a translation proxy.
Frequently asked
Which Java version does Minecraft 25w41a need?
Java 21 or newer. Mojang publishes this requirement in the version metadata, so an older runtime will refuse to start the server.
Which Minecraft versions can connect to a 25w41a server?
Any client speaking protocol 1073742097: 1.21.9-rc1. Versions with a different protocol number need a translation proxy such as ViaVersion.
Which server software supports 25w41a?
Sponge publish builds for 25w41a.