The app also extended the features support for connected TVs and Google’s own Chromecast, which allows you to see a preview screen when using YouTube to “cast” videos to your Chromecast or other supported TV.
Redesigned UI and Multi-window Feature of YouTube Apps
Google redesigned UI and new features of YouTube apps for both Android and iOS. Keeping with the current look and feel of Google’s applications you have your sliding hamburger menu on pane on the left with new icon and a new multi-window feature that lets you minimize the video to the bottom right of the screen playing by swiping down, tapping the down arrow overlay, or by pressing the back button while you look through your card based UI of your feed and search list. From there, you can dismiss the video with a flick of your finger (right or left), or bring it back up to full-screen mode. History, playlists, favorites and uploads are now at the top of the menu for easy access.