Out of curiosity, I decided to upgrade to Yosemite without paying Parallels for yet another upgrade. I wanted to see whether there was any way to troubleshoot my Windows 8.1 VM myself and make it boot. I don't know if anyone else has tried it, but the steps required to access your Windows VM are actually... zero!
After upgrading to Yosemite, I booted my VM in Parallels 8 with complete success. The first time it took a few seconds longer but that's about it! I also rebooted to Bootcamp and them back to Yosemite and used Parallels again to boot the VM, again without a single problem.
Granted, it may be very early to tell what problems I may encounter down the road, but I'm just saying that it seems that Parallels 8 being unsupported does not necessarily mean that it won't be accessible, as Parallels so conveniently is declaring. Just though to share my experience...
After upgrading to Yosemite, I booted my VM in Parallels 8 with complete success. The first time it took a few seconds longer but that's about it! I also rebooted to Bootcamp and them back to Yosemite and used Parallels again to boot the VM, again without a single problem.
Granted, it may be very early to tell what problems I may encounter down the road, but I'm just saying that it seems that Parallels 8 being unsupported does not necessarily mean that it won't be accessible, as Parallels so conveniently is declaring. Just though to share my experience...