Compatibility
What works with Minecraft 1.20.3
Released 4 Dec 2023. Everything below comes from the projects' own published data, and each row says how we know.
Java requirement
Java 17 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 1.20.3.
Mod loaders
Support declared in each loader's own metadata.
- Spigot#3961inferredsupported
- Minecraft Forge49.0.2declaredsupported
- Fabric Loader0.19.3declaredsupported
- Quilt Loader0.30.1-beta.2declaredsupported
- NeoForge20.3.8-betadeclaredsupported
Clients that can join
Protocol 765 is shared with these versions, so they can connect without a translation proxy.
Frequently asked
Which Java version does Minecraft 1.20.3 need?
Java 17 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 1.20.3 server?
Any client speaking protocol 765: 1.20.4. Versions with a different protocol number need a translation proxy such as ViaVersion.
Which server software supports 1.20.3?
Spigot publish builds for 1.20.3.