Announced as a big update, I'm really disappointed. It brings no breathtaking new features at all, all light ones, such as hovering the mouse over a tab in Edge, which brings up a thumbnail of the site (what's the use of that, I find it even annoying). Not tested yet if the notifications problems in the email app are solved, let's hope it does.
Mr Microsoft : please give us extensions in the browser. That is what I'm waiting for and would blow my socks off. The lack of extensions forces me to change my default browser to Chrome.