The Samsung Galaxy J7 (2016) has just become the first Galaxy J series handset to receive two major upgrades for the operating system. In some markets, this handset has received Android 8.1 Oreo, but it is not clear yet if the Galaxy J5 (2016) will get the same treatment or not. The new firmware comes with Samsung Experience 9.5 on top.
https://www.notebookcheck.net/Android-8-1-Oreo-now-available-for-the-Galaxy-J7-2016.364091.0.html