Redmi Note 8 and Redmi Note 8 Pro came out last year with Android 9, they recently started receiving the MIUI 12 update, which is based on Android 10. This should be their last Android OS update, but now it has been announced that they will receive the update to Android 11.
Redmi Note 8 and Note 8 Pro will unexpectedly receive Android 11
The source, referring to the Xiaomi and MIUI Telegram channel, reports that Xiaomi has already begun internal testing of Android 11 for the Redmi Note 8 and Redmi Note 8 Pro.