Samsung has started pushing out a new update to its Galaxy C9 Pro smartphone. It's a security update that carries a build number of C900FDDU1AQC32, and brings along Android fixes for the month of March. Aside from the March security patch, the update also includes some bug fixes and performance enhancements. Given the fact that it's an OTA roll out, it might 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/samsung_galaxy_c9_pro_getting_new_security_update-news-24340.php