A fresh report suggests that Xiaomi 12 range will be the first to get MIUI 13. The series is expected to be unveiled next month and is likely to include two models – Xiaomi 12 and Xiaomi 12X. The latter is said to come with Android 11-based MIUI 13.

source https://gadgets.ndtv.com/mobiles/news/miui-13-android-11-12-update-redmi-k50-xiaomi-12x-mi-mix-4-mi-11-ultra-2630363#rss-gadgets-all