As is known, most often Xiaomi updates proprietary shell MIUI, not following the release of new versions of the Android operating system. Meanwhile, on the official forum MIUI has passed a set of wanting to participate in testing the new MIUI 8, which, in turn, will be based on the latest version of Android Nougat. it is known that one of the first update will receive Xiaomi Mi5 flagship, which should be more performance and energy efficiency.
in addition, the global beta testing is open to owners of Mi Max with 32 GB of storage and redmi 3S / Prime. To do this, go to forum and perform the necessary actions for registration.