Compatibility
What works with Minecraft 21w03a
Minecraft 21w03a runs on Java 8, the runtime Mojang's launcher bundles for it. Released 20 Jan 2021. Everything below comes from the projects' own published data, and each row says how we know.
Java requirement
Java 8, per Mojang's launcher
The runtime Mojang's launcher bundles for this version. Builds from this era were compiled for the Java of their day, so this is the tested choice rather than a hard floor. Get a verified build.
Server software
No server software in our catalogue has published a build for 21w03a. For a test version that is normal: server projects usually wait for the full release.
Mods, plugins and packs for 21w03a
Counted from each project's own release metadata. Nothing is guessed from a filename.
Popular mods on 21w03a
The most downloaded mods that declare this version.
- Fabric APIready
- Fabric Language Kotlinready
- Euphoria Patchesready
- Dynamic FPSready
- Pehkuiready
- Blur+ready
- CustomSkinLoaderready
- Cull Leavesready
- Zumeready
- WI Zoomready
- Ok Zoomer - It's Zoom!ready
- LambdaBetterGrassready
Popular plugins on 21w03a
The most downloaded plugins that declare 21w03a.
Popular resource packs on 21w03a
The most downloaded resource packs that declare 21w03a.
Popular shader packs on 21w03a
The most downloaded shader packs that declare 21w03a.
Popular data packs on 21w03a
The most downloaded data packs that declare 21w03a.
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 21w03a need?
Java 8 is the runtime Mojang's launcher bundles for it. Versions from this era were built for the Java of their day, so an older runtime may start it too; Java 8 is the tested, safe choice.
Which mods work with Minecraft 21w03a?
63 mods in our catalogue declare 21w03a in their own release metadata, including Fabric API, Fabric Language Kotlin, Euphoria Patches, Dynamic FPS, Pehkui. Each still has to match your loader.
Which server software supports 21w03a?
No server software in our catalogue has published a build for 21w03a yet.
Is this information wrong or missing something? .