A new update has started hitting LG K10 units on AT&T's network. Arriving as build number NRD90U (software version K42520c) and weighing in at 1.22GB, the new firmware is based on Android Nougat 7.0. In addition to new OS version, the update also bumps the Android security patch level to April 1. Given that it's an OTA roll out, it might take time for the update notification to pop up on your device's screen. Source | Via
Source: http://www.gsmarena.com/lg_k10_on_at_t_getting_nougat_update-news-25783.php