Compatibility
What works with Minecraft 25w21a
Minecraft 25w21a needs Java 21 or newer. Released 20 May 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 25w21a.
Mods, plugins and packs for 25w21a
Counted from each project's own release metadata. Nothing is guessed from a filename.
Popular mods on 25w21a
The most downloaded mods that declare this version.
- Fabric APIready
- Euphoria Patchesready
- CraftPresenceready
- Concurrent Chunk Management Engineready
- Physics Modready
- UniLibready
- StackDeobfuscatorready
- Zumeready
- WI Zoomready
- Carpetready
- Fast Noiseready
- Iris/Oculus Shader Folderready
Popular plugins on 25w21a
The most downloaded plugins that declare 25w21a.
Popular modpacks on 25w21a
The most downloaded modpacks that declare 25w21a.
Popular resource packs on 25w21a
The most downloaded resource packs that declare 25w21a.
Popular shader packs on 25w21a
The most downloaded shader packs that declare 25w21a.
Popular data packs on 25w21a
The most downloaded data packs that declare 25w21a.
Mod loaders
Support declared in each loader's own metadata.
- Quilt Loader0.31.0-beta.4declaredsupported
- Fabric Loader0.20.1declaredsupported
Frequently asked
Which Java version does Minecraft 25w21a need?
Java 21 or newer. Mojang publishes this requirement in the version metadata, and an older runtime will refuse to start the server.
Which mods work with Minecraft 25w21a?
112 mods in our catalogue declare 25w21a in their own release metadata, including Fabric API, Euphoria Patches, CraftPresence, Concurrent Chunk Management Engine, Physics Mod. Each still has to match your loader.
Which server software supports 25w21a?
Sponge publishes builds for 25w21a.
Is this information wrong or missing something? .