ViaFabricPlus Mod FAQ

Open the vanilla multiplayer server list screen and look for the ViaFabricPlus button in the corner, or check your mod menu entry for the mod's config screen. From there you can change the target version, Bedrock settings, and other options.

Open the ViaFabricPlus settings and set the target version, then join the server — the mod translates your protocol on the fly. You can switch versions between joins without restarting the game, though you must be disconnected from a server to change it.

Make sure you're not currently connected to a server when changing the target version, and confirm the version you picked actually matches what the server accepts. If it still fails, check the connection error guide, since some servers block certain client versions or require specific settings.

Yes, it includes Bedrock support so a Java client can connect to Bedrock servers, but you need to enable the Bedrock-related options in the settings first. Expect some differences in gameplay since the two editions aren't identical.

Yes, ViaFabricPlus supports connecting to old Release, Beta, Alpha, and Classic servers by translating your modern client's protocol. Just set the appropriate target version in the settings before joining.

No, ViaFabricPlus is a client-side mod, so the server doesn't need it installed. The server just needs to accept the version you're connecting as, which is what the mod handles.

Older versions simply don't have newer blocks, items, or mechanics, so the mod can't make them appear — it only translates what exists. Expect missing features and occasional visual or gameplay differences when playing on very old versions.

It generally works alongside other Fabric mods, but mods that also modify networking or protocol handling can conflict with it. If you get crashes or connection issues, try testing with only ViaFabricPlus enabled to isolate the problem.

The mod mainly handles protocol translation, so its performance impact is usually small, but joining very old or Bedrock servers can add overhead from conversion. If you notice lag, check your other mods and settings first, since those are more often the cause.

Common causes are a mismatched target version, a server that blocks your client version, or a conflict with another networking mod. Set the correct version for that server, disconnect before changing it, and check the crash log to identify the conflicting mod.