Xiaomi has today opened closed beta registrations for MIUI 10. The Chinese giant is now recruiting beta testers, with modern Xiaomi devices, who can take the software for a spin.
You need to register your interest by the end of the day (Beijing time) and the list of selected users will be announced on May 29. To register using WeChat, you need to search for MIUI and then text 'MIUI 10' to them.
This account will send you a code, which you need to enter by tapping the MIUI 10 button in the bottom menu bar. And voila, you are done and should get the beta when it rolls out.