Apple has released iOS 10.1 Developer Beta 4 released to developers who sign up for updates surrounding this number in Build 14B72 and 14B72b which focused on improving the efficiency of shooting a Portrait for iPhone 7 Plus.
Changes in iOS 10.1 key is to Portrait mode in the camera of the iPhone 7 Plus shooting obviously blurred background in iOS 10.1 Developer Beta 4 has been taken to improve the accuracy and more clear.
However, Apple also released the latest iOS 10.0.3 comes out the same. The network connectivity solutions for the iPhone 7/7 Plus is a multi-user problem earlier.
Update iOS 10.1 Developer Beta 4 via Software Update or Download.