Upgraded my Opera browser on windows to 9.50b. My first expression, it is very fast.
If you look on change List, it is huge.
Another cool thing is page scrolling. It is much more softer. Very comfortable and without brakes.
Opera has some changes in it`s interface. Page zoom is moved in status bar.
Entering text in adress bar now make search not only by visited sites, but also throug all history.
Download opera 9.50b here.