I just upgraded, purely for the window snapping features. Waited till 15.1 in case of any teething issues.
On the previous OS I was using a keyboard shortcut to tile windows to the left and right of the screen (the alt+hover over green button actions). Now they seem to have broken it. If you tile the window to the left or the right of the screen it is not right up against the edge. So if you move your mouse cursor to the extreme left or right of the screen and use a scroll gesture or wheel, you are not on the application window, you are on the desktop by a couple of pixels, so your scroll has no effect.
It's the same if you use any of the window snapping, the resulting snapped window is not lined up with the left/right/top edge of the screen. I think it's not even a bug, probably a design choice!
Has anyone else noticed this? Does anyone use the betas and can check if the same happens in 15.2?
rp2000