Safari Issues since Update: Bug.
This isn't really a "what's going on" but rather an issue that TONS of people are experiencing, which is websites not hyperlinking properly, or at all, and issues with signing into sites which ought to remember us, but don't. If you have this issue too, I believe it's because of the recent update, and a major bug.
Hopefully it is resolved soon
I couldn't log into Masterclass.com with my Facebook login, and links from Gmail just open up a blank tab. Works with Chrome, but not Safari. First opening of Safari windows was weird, too, and lots of crashes. Hopefully a patch soon.