The first observation - the menu that pops up when you tap on a YouTube comment (the one that lets you to like/dislike/reply/etc) pops up first, then half a second later jumps up on the screen. The result: I end up tapping "dislike" when I mean "like".

The second observation - the list of open Browser tabs has changed. I'm not so hot on the new layout, but I can get used to it.

The third observation - the network connection is much les stable than before. I need to restart network in Utilities at least three times a day.

Other than that, no real change observed. Not sure what the point of the update was.