Samsung has started pushing out a new update to its Galaxy Note 4 smartphone. Arriving as version XXS1DQC3 and weighing in at around 403MB, the update brings along several changes, including Android security fixes for March. Aside from the latest security patch, the update also includes battery-related optimizations as well as changes aimed at improving stability and performance of the device. Currently, only unbranded European units are getting the update, but carrier variants and other markets should also get it soon. Via
Source: http://www.gsmarena.com/new_samsung_galaxy_note_4_update_optimizes_battery_usage-news-24145.php