User blog comment:MisterWoodhouse/A change to Shared Help on the Unified Community Platform/@comment-45374246-20200706182757/@comment-24155515-20200706190140

They stapled their own updates and security fixes to it so it's not like it's insecure or unstable or anything, but it's a fork of an old version in such a way that an upgrade to a good real modern version of MW is more sensible at this point.