Samsung has started pushing out a new update to Galaxy S7/S7 edge and Galaxy Note5 units in India. Weighing in at 169.79MB and 176.49MB for the S7 duo and just 14MB for the Note5, it's a security update that brings Android fixes for April. There's no official confirmation on what other changes (if any) the update brings along, although some improvements and bug-fixes are said to be included. As is usually the case with OTA roll outs, it may take sometime for the update to hit your device. Via
Source: http://www.gsmarena.com/new_security_update_hitting_samsung_galaxy_s7_s7_edge_and_note5_units_in_india-news-24906.php