According to the Official YouTube Blog, you’ll have a new pop-out player to keep YouTube Gaming visible on top of other apps, so you can continue watching a livestream while still using another app.  Additionally, the Android app now joins the iOS web version with the ability to play back at 60fps rewind video with a DVR mode. There are several other organizational changes with a goal to make things easier to find. For example, there’s a new “ve” tab with features games channels the sidebar has been banished in favor of a simplified navigation scheme.