The new update not only brings Android 8.1 Oreo but also comes with July’s security patch, unlike the first one that came with June’s security patch. The update comes in two sizes – 467.3MB for those who didn’t get the first update and 1152MB for those who received the first update with the SMS bug.
The update will roll out over the next few days to all users. So far, there has been no report of any bugs, so you can go ahead and install when you receive it.
The Mi A1 is Xiaomi’s first Android One phone. It is based on the Mi 5X sold in China but replaces MIUI with stock android. Come next week, Xiaomi will announce two successors to the Mi A1. they are the Mi A2 which is based on the Mi 6X and the Mi A2 Lite which is sold as the Redmi 6 Pro in China.