Blackmagic have released new drivers for their range of card. These mainly seem to include updates to fix problems with Premiere and add HDR output to some cards. Possibly the most interesting fact it that they say “Desktop Video 11.5 is the last release to support Windows 7”. This is not unreasoinable given that Microsoft are not supporting Windows 7 any more, just interesting. You can download the latest drivers here: https://www.blackmagicdesign.com/support/family/capture-and-playback
I have not tried them myself yet so cannot comment on how good they are, but if you have a system that is working now I would just carry on using it and not update unless you have to.