Xiaomi developers have released a new global beta version of MIUI 10.
The firmware came out at number 9.3.21
New features are not added to the firmware, butcorrected a huge number of different errors. For example, displaying the application notification indicator, screen recording error, device lock icon disappearing using a face, screen flickering when unlocked in landscape orientation, and much more. The full list can be viewed at the link.
Updated: MIUI 10 Global Beta 9.3.21 for smartphones Redmi Note 4, Redmi Note 4X, Redmi 5 Plus, Redmi 5 and Mi 9 is delayed due to errors. Also, the firmware has not yet been released for Redmi S2, Redmi Note 5 and Redmi Note 5 Pro in connection with testing Android Pie.