Another bunch of Samsung Galaxy phones have started receiving the latest security update. The devices in question are the Galaxy J2 Prime, J5 (2016), and the C5, and the update for them arriving as build number G532GDDU1AQC2, J510MNUBU2AQC1, and C5000ZCU1AQC1, respectively. As is usually the case with OTA roll outs, it may take time for the update to hit your device. Meanwhile, if you feel impatient, you can manually check for the update by heading to your handset's Settings menu. Via
Source: http://www.gsmarena.com/march_security_patch_hitting_samsung_galaxy_j5_2016_j2_prime_and_c5_-news-24047.php