After sending out a global beta MIUI 12 update to the Redmi Note 8 Pro, Xiaomi has now also released a MIUI 12 update to the Redmi Note 8 and Redmi Note 7 Pro in China. The update bears the build designation "MIUI 12.20.7.3", and is only available for those who opted into the MIUI 12 China beta testing program.
https://www.notebookcheck.net/MIUI-12-beta-update-lands-for-the-Redmi-Note-8-and-Redmi-Note-7-Pro-in-China.479415.0.html