The the Xiaomi Mi 4c, which was launched way back in September 2015 with Lollipop onboard, will soon get the Nougat update. The company has already started testing the promised update as a device running the latest Nougat version (Android 7.1.1) has been spotted on the Geekbench benchmarking website. Sadly, there's currently no information on when exactly the update will be rolled out. Here's hoping that testing goes smoothly and it comes sooner rather than later. Via
Source: http://www.gsmarena.com/android_711powered_xiaomi_mi_4c_spotted_on_geekbench-news-22802.php
