Version 2.1.45

• mcMMO will now check to see if the server version is incompatible and inform server admins on how to fix the problem.

mcMMO will only complain about your server software being out of date if you are missing API from Spigot, mcMMO is not actually looking at the version of your server software, it is just checking for missing API.

In addition to this if it finds missing API and it determines you are not using Spigot or Paper, it will assume you are using CraftBukkit and warn you that CraftBukkit is not compatible.

All of this stuff does not happen unless missing API is found (which means you need to update)