ViaVersionStatus 4.00 is more of a maintenance update, despite the major version change. The main change is to remove support for ProtocolSupport, which hasn't been updated in 3 years. Metrics say that only 5 servers with ViaVersionStatus are using ProtocolSupport.

Other changes involve updating the plugin to align with recent ViaVersion upgrades, in particular requiring Java 17+. The minimum Spigot/Paper version has been updated to 1.18 (the first version that required Java 17) and the ViaVersion API dependency has been updated.

There are no added features in this new version and no configuration changes. You can simply replace the ViaVersionStatus jar file.