Compatibility
What works with Minecraft 25w42a
Minecraft 25w42a needs Java 21 or newer. Released 14 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
No server software in our catalogue has published a build for 25w42a. For a test version that is normal: server projects usually wait for the full release.
Mods, plugins and packs for 25w42a
Counted from each project's own release metadata. Nothing is guessed from a filename.
Popular mods on 25w42a
The most downloaded mods that declare this version.
- Fabric APIready
- Euphoria Patchesready
- CraftPresenceready
- Concurrent Chunk Management Engineready
- LambDynamicLights - Dynamic Lightsready
- UniLibready
- StackDeobfuscatorready
- Almanacready
- Zumeready
- WI Zoomready
- Carpetready
- Iris/Oculus Shader Folderready
Popular plugins on 25w42a
The most downloaded plugins that declare 25w42a.
Popular modpacks on 25w42a
The most downloaded modpacks that declare 25w42a.
Popular resource packs on 25w42a
The most downloaded resource packs that declare 25w42a.
Popular shader packs on 25w42a
The most downloaded shader packs that declare 25w42a.
Popular data packs on 25w42a
The most downloaded data packs that declare 25w42a.
Mod loaders
Support declared in each loader's own metadata.
- Quilt Loader0.31.0-beta.4declaredsupported
- Fabric Loader0.20.1declaredsupported
Clients that can join
Protocol 1073742098 is shared with these versions, so they can connect without a translation proxy.
Frequently asked
Which Java version does Minecraft 25w42a need?
Java 21 or newer. Mojang publishes this requirement in the version metadata, and an older runtime will refuse to start the server.
Which Minecraft versions can connect to a 25w42a server?
Any client speaking protocol 1073742098: 1.21.10-rc1. Versions with a different protocol number need a translation proxy such as ViaVersion.
Which mods work with Minecraft 25w42a?
115 mods in our catalogue declare 25w42a in their own release metadata, including Fabric API, Euphoria Patches, CraftPresence, Concurrent Chunk Management Engine, LambDynamicLights - Dynamic Lights. Each still has to match your loader.
Which server software supports 25w42a?
No server software in our catalogue has published a build for 25w42a yet.
Is this information wrong or missing something? .