
A model of the Galaxy A7 (2017) has appeared on a popular benchmarking website and the listing reveals that it was running Android 7.0 Nougat. We usually see such listings pop up whenever a major software update is in the pipeline for a supported device.
Even though the listing specifically mentions the Galaxy A7 (2017), it can reasonably be assumed that Samsung is also testing the Android 7.0 Nougat update for the Galaxy A3 (2017) and the Galaxy A5 (2017) as well.
Samsung hasn't confirmed as yet when the Galaxy A (2017) series is going to receive its Nougat update but it might take a couple of months before that happens.