You mean no one has updated their S7 since the latest update on 7/10/17? just want to know if it's okay to download or did you have problems afterwards?
I don't personally have an S7 but I'd say as long as the you're updating the version on our Software updates: Samsung Galaxy S7 page, you should be fine. If you still need help, please let us know and do everything we can to make sure you're taken care of. Thanks!
My wife hasn't complained about anything since it updated, but the problem is you didn't mention which device you had and what update you were talking about
Might want to check Reddit, XDA, or some of the android fan sites to see what more vocal users would say about updates.