ViaFabric: Bridge Between Minecraft Versions

ViaFabric is a Fabric platform port of ViaVersion implementation that creates a universal bridge for connecting different Minecraft versions on clients and servers.

The modification is compatible with Legacy Fabric for versions 1.8.9 and 1.12.2 as well as with standard Fabric starting from 1.14.4 up to the latest 1.20.4. Its operation requires Fabric API installation for Minecraft versions 1.14+, while for version 1.8.9 Legacy Fabric API is needed.

Advanced Features and Add-ons

The system supports extended functionality through additional companion mods:

ViaBackwards - allows older clients to connect to newer servers ViaRewind - similar solution for backward compatibility

Differences with Alternative Solutions

For users of the latest Minecraft versions who aim for maximum stability and gameplay convenience, it's recommended to consider the fully-featured alternative.

Key differences between solutions:

Supported versions: ViaFabric works on multiple client and server versions with Fabric, while extended version supports only latest client builds.

Operation principles and goals: ViaFabric focuses on basic ViaVersion implementation through network packet modifications, whereas enhanced solution uses deeper client code intervention to fix cross-version compatibility issues.

Compatibility and verification issues: Using ViaFabric has high probability of triggering anti-cheat systems, while improved version practically doesn't cause such conflicts.

Additional technical information and instructions can be found in the official developers repository.