Recently, Samsung Electronics Ltd has just unveiled their new Galaxy A7 (2017) with Samsung Bixby support with the addition of the specialized key. Today it was leaked that a new Galaxy A7 (2017) runs on Android 7, as shown in screenshot below. If this is authentic, it means that Samsung Galaxy A7 will be welcoming a new major firmware upgrade.
In a new leaked screenshot on WIFI Certified Interoperability Certificate, the Samsung Galaxy A7 (2017) with model number SM-A720F appears online that runs on Android 7.0. While most Galaxy A7 (2017) currently remains on Android 6, this could indicate Samsung will be bringing the Android 7 update to all Galaxy A7 users shortly.
Source : PhoneArena