I just got a giant warning popup from Parallels (virtualization software) on MacOS that I need to update Parallels before upgrading any Windows guest OSs to Win

I just got a giant warning popup from Parallels (virtualization software) on MacOS that I need to update Parallels before upgrading any Windows guest OSs to Windows 10 Creator's Update. The update claims to fix an issue where Windows won't boot after updating. So, maybe one would want to block the update for reasons such as this? Not sure...it was easy enough for me to stop and update Parallels first, but maybe others have reasons for not doing so.