Is there a specific reason why the versions from Musicbrainz are not showing-up? (note: the musicbrainz data has been there forever - none of these are recent additions)
Right now, not every version will appear here. We have logic in place to determine which versions should appear.
For now, I would recommend also posting your suggestion in the 'feature request" section of the site.
Our product team and developers keep a close eye on that category, so that’s definitely the best place to propose a change like this and get feedback from the Community.
I’ve - kind of - asked it already but I’m trying again: would it be possible to explain what qualifies a release to actually appear? That would at least stop me from wondering why sometimes releases will not make into the Roon dataset.