Xiaomi has started rolling out the stable version of MIUI 10 for Mi Phones that Xiaomi says are the first batch, they include Redmi Note 5 (Global) / Redmi Note 5 pro (India) | Mi 6 | Mi MIX 2 |Mi 5 | Mi Note 2 | Mi MIX | Redmi S2 (Global) / Redmi Y2(India).
The first batch of smartphones that will get the update till 20th September as per the note posted on an official page of MIUI.
According to the Chinese Tech. Giant Xiamoi the new MIUI will have some new features like the system will be faster compared to the old MIUI. Xiaomi has also added some new apps. You can view other details on the official page of Xiaomi.