Apparently the "hundreds" of other "great" feature updates are worthy of the INTEGER update. I'm however still sitting on Parallels 11 which is now a "cul de sac" for me as I'm going nowhere until I can have Directx 12 support! Virtualbox & Wine can manage it, albeit they still describe it as "experimental"; but from what I've been told by users it's fairly solid. If this software went Subscription Only that would finish Parallels for me.
Still waiting for directx no sign of this!! The INTEGER upgrade i.e. the supposedly great features update makes my iMac Pro CRASH when used. I am on a subscription service to the parallels 13 program.