Samsung has started pushing out a new update to the Galaxy J7 (2016) smartphone. Weighing in at around 26MB and arriving as version J710FXXU3AQD4, the update brings along Android security fixes for April.
Sadly, there's currently no information on what other changes (if any) it includes. The update is currently hitting units in India.
As is usually the case with OTA roll outs, it may take sometime for the update notification to pop up on your device's screen.