Samsung has started rolling out the latest Android security update to Galaxy Note5 units in India. As per the change-log, the update also includes some performance and stability-related improvements as well as generic bug fixes. Weighing in at around 19MB, the update bumps the firmware version to N920GDDS2BPD2, and brings up the device's Android security patch level to April 2, 2016. Reportedly, Galaxy Note5 model SM-N920G is receiving the same firmware in Nepal and Sri Lanka as well. Given that software updates are usually rolled out in phases, it may take time for this one as well...
Source: http://www.gsmarena.com/april_security_update_starts_hitting_galaxy_note5_units_in_india-news-17905.php