Aside the Mi 9 Pro and the Mi Mix Alpha, one other thing that was announced at Xiaomi's recent event was the MIUI 11. Xiaomi's MIUI skin is the company's heavily modded version of Android with UI tweak and added features.
[img]https://1.bp..com/-CPw7jZS18ZE/XYxED4Ia6VI/AAAAAAAAffs/ej1LhcOultsJ0GFEnoqRJEgSZbBktTBAQCLcBGAsYHQ/s1600/MIUI%2B11.jpg[/img]
As expected, the new MIUI update is a major upgrade from the MIUI 10. It is based on the latest Android 10 firmware with a more pleasing and updated User Interface. It also comes with the much awaited system wide Dark Mode as well as a couple of new features and improvements.

In terms of visual changes, the system font on the MIUI 11 is now Mi Lan Pro, users also get new wallpapers, animations as well as themes. One other visual change that was made to the MIUI 11 is the new enhanced AOD(Always on Display).

Improvement has been made to the notification system, and the audio experience has been further improved to give users a natural sound effect. The file management document in the MI work suite has been improved to give users support for screen-casting as well as printers. It also now comes pre-installed with WPS office.

The public beta program of the MIUI 11 will kick off tomorrow September 27 while the full stable version will start rolling out in MId-October. Below is the list of Xiaomi and Redmi devices that are eligible for the MIUI 11 update as well as the scheduled roll-out date.

mid-October MIUI 11 Rollout
Mi 9
Mi 9 Explorer
Mi 9 SE
Mi Mix 3
Mi Mix 2S
Mi 8
Mi 8 Youth
Mi 8 Explorer Edition
Mi 8 In-display Fingerprint Edition
Mi 8 SE
Mi Max 3
Redmi K20 Pro
Redmi K20 Pro Premium Edition
Redmi K20
Redmi Note 7
Redmi Note 7 Pro
Redmi 7

late October MIUI 11 roll-out
Mi 9 Pro 5G
Mi CC 9
Mi CC 9 Meitu Custom Edition
Mi CC 9e
Mi MIX 2
Mi Note3
Mi 6
Mi 6X
Redmi 7A
Redmi 6 Pro
Redmi Note 5
Redmi 6A
Redmi 6
Redmi S2

early November MIUI 11 Roll-out
Mi Mix
Mi 5s
Mi 5s Plus
Mi 5X
Mi 5C
Mi Note2
Mi Play
Mi Max 2
Redmi Note 8
Redmi Note 8 Pro
Redmi 5 Plus
Redmi 5
Redmi 5A
Redmi 4X
Redmi Note 5A