iOS 10.1 includes a host of enhancements and bug fixes, but the signature addition is Portrait Camera, a feature previously touted by Apple for the iPhone 7 Plus only. If you don't have an iPhone 7 Plus, you should still update your iPhone and iPad to 10.1 as it should iron some of the bugs in the 10.0 update and bring you some important security fixes. However, iOS 10.1 adds just one new feature (along with some bug fixes), and it's just for owners of the iPhone 7 Plus: Portrait Mode.
Apple is launching its portrait photo mode for the iPhone 7 Plus today with the release of iOS 10.1. Shooting in Portrait mode saves two shots: One with the depth effect, and one without. The update is available immediately as an over the air (OTA) update or as a download that can be installed by connecting your iOS devices to a computer using iTunes. Launch the Settings app, the tap General Software Update.
MacOS 10.12.1 Sierra didn't list almost as many changes, but when you go to update your Mac, this is what you'll see.
Apple is still working on this feature and it's going to get better over the coming months. Read Apple's list of what's included in iOS 10.1.