You would not find the new UI, unless you turn off the Menu bar manually.
Just click, View -> Toolbar and Uncheck Menu Bar.
And now Enjoy...!!!
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Marty: Hey, Doc, we better back up. We don't have enough road to get up to 88.
Doc Brown: Roads? Where we're going, we don't need, "roads!" :)
──── On the Internet you can be Anything you want. It's Strange that, so many people choose to be Stupid! ────