This beta version of iOS 10.2 contains bug fixes and improvements.
In iOS 10.2 the Videos app is completely replaced by Apple's new TV app. There are also some other improvements including new emoji, new wallpaper and more. Click here for details.
Developers can download the new build from the link below. Apple is expected to release iOS 10.2 next week with additional diagnostic capabilities to help determine the cause of unexpected iPhone 6s shutdowns.