Consider waiting if you have upcoming deadlines.Time Machine allows you to roll back to your previous system software should you run into a huge problem. Major features include a visual overhaul, Control Center comes to Mac, overhaul of Mail, Messages, and Maps to make them work more like their iPad counterparts, and much more. I’ve been using it myself for many months with very few problems so I’m optimistic that this is going to be a really well-received update, but of course everyone’s experience is going to be a little different so I suggest waiting a while before updating, especially if you don’t have a secondary computer to use should things go sideways.
It’s an exciting release with lots of great new features.