Will Adobe give us a minor update for fixing "Subscription Suspended" issue?
I hope they will release it on this week
If you're getting this issue, please contact Adobe Support. This is unfortunately not something we can fix on the product side, and must be fixed in an in-person session with one of our team members.
Will XD has backward support for Windows 7 Professional?
Adobe said they decided to focus on creating "the next-generation design software that uses the latest hardware and OS's" so no, they won't make XD compatible with old operating systems. It's only compatible with Windows 10 (and the latest Mac OS).