I think from the discussion here: Roon no longer opening on OS X 10.8 Mountain Lion (Build 354) - #18 by Greg @Dave_Housteau raises a valid question – at least as long as https://kb.roonlabs.com/FAQ:_What_are_the_minimum_requirements%3F still says:
@support Maybe there’s an official KB update needed? Also it would be nice if this information would be easily reachable from the Downloads and “Not sure what to download” pages - me thinks.