This 5.7-inch premium mid-range handset launched in early 2017 but only had Android Marshmallow on board back then. Now, the Nougat update is finally available for it. The new firmware brings Samsung Pass, Dual Messenger, and improved always-on capabilities.
https://www.notebookcheck.net/Samsung-Galaxy-A7-2017-gets-Android-Nougat.240868.0.html