The global MIUI 9 rollout continues. Today Xiaomi Redmi 4 is getting the MIUI stable update. The firmware version is V9.1.1.0.NAMMIEI and it brings Android 7.1 Nougat, Xiaomi's Smart app launcher, image search, split screen multitasking and much more. MIUI 9 already hit a number of devices - the Xiaomi Mi 6, Mi 5 and Mi 5s and Mi Mix 2 among them, and is rolling out to its second wave of devices, which includes the Redmi 4 and the original Mi Mix. Source
Source: https://www.gsmarena.com/global_xiaomi_redmi_4_receives_stable_miui_9-news-28354.php
