Download Framework for Minecraft 1.21.5

✨ Update to Minecraft 1.21.5

Developers using Framework:
Lots of API changes regarding registration, events and adoption of model loading system. As of right now, this version is incomplete for model loading on Fabric. Registration of previous things like SyncedDataKeys and FrameworkNetworks should now be placed in a class with RegistryContainer annotation, just like RegistryEntry.