MIUI 13, now avalabile for Xiaomi Redmi Note 9 (EEA) : r/Xiaomi
MIUI 12.5 Enhanced Edition lands on the Xiaomi Redmi Note 9 in India - NotebookCheck.net News
Xiaomi Redmi Note 9S and Redmi Note 9 Pro receive MIUI 12 update as OS upgrade goes global for the Mi Mix 3 5G - NotebookCheck.net News
MIUI 12.5 with Android 11 could be next update for Redmi Note 9 series
Update: Taiwan, EEA, Russia, Indonesia, Turkey, and Global] Xiaomi Redmi Note 9 MIUI 12.5 update brings various new features, major improvements - RPRNA
Redmi Note 9 Pro MIUI 12.5 Enhanced In Europe Available Ahead Of MIUI 13 Release
MIUI 12 finally on Redmi Note 9 Pro in EU : r/Xiaomi