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ViaBackwards Plugin Wiki

ViaBackwards Plugin Wiki & Guide

wiki.9minecraft.net/viabackwards-plugin/

ViaBackwards Plugin is a Minecraft server-side tool that allows older clients (starting from version 1.9) to connect to newer server versions. It’s part of the ViaVersion ecosystem and is essential for maintaining compatibility across different Minecraft versions.

Guides

Step-by-step, in-game.

Diagnosing Why an Older Client Cannot Connect at AllWhen a player on an old client is refused entry, the cause is usually a missing dependency or a version that…Fixing Inventory Desync for Players on Very Old ClientsPlayers on clients below 1.17 often report items appearing in the wrong slots, ghost items, or a hotbar that does not…How to Let Players on Older Minecraft Versions Join Your Newer ServerYou want friends on older clients to connect to your up-to-date server. ViaBackwards handles the translation, but it…Making the Smithing Table Work for Players on Older ClientsOn newer servers, players using clients below 1.19.4 may find the smithing table unusable — the interface opens but…

Frequently asked questions

How do I set up ViaBackwards so my older players can join?
Install ViaVersion and ViaBackwards together on the server, then restart. ViaBackwards won't do anything on its own — it depends on ViaVersion to handle the core protocol translation.
Do I need ViaVersion installed for ViaBackwards to work?
Yes. ViaBackwards is an add-on to ViaVersion and will not function without it. Install both plugins and keep them on matching versions.
Which Minecraft versions can connect to my server with ViaBackwards?
Clients from 1.9 up through the server's version can connect. Anything 1.8 or older needs ViaRewind or ProtocolSupport instead.
Why can't my 1.8 players connect even with ViaBackwards?
ViaBackwards only supports clients 1.9 and newer. For 1.8 and below, add ViaRewind (or ProtocolSupport) alongside ViaVersion and ViaBackwards.

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