I installed the beta the moment I heard the keynote say I could immediately.
The new swipe-up-from-Home UI is off by default. I had to turn it on in Gestures. By default, it's the old three-button UI: Back, Home, App switcher.
The new swipe-up-from-Home UI is off by default. I had to turn it on in Gestures. By default, it's the old three-button UI: Back, Home, App switcher.
Tapping Home and tapping Back still do exactly the same thing. Long-pressing Home still opens Google Assistant.
Opening the app switcher UI is now done by dragging Home up (instead of tapping App Switcher).
Quickly switching to the last used app is now done by dragging the Home button right (instead of double-tapping App Switcher).