Xiaomi may have just announced the Redmi Note 11 series, but it has not forgotten about the Redmi Note 9. Accordingly, the mid-range handset has just received MIUI 12.5 Enhanced Edition in India, following a similar rollout on MIUI's global branch. MIUI 12.5 Enhanced Edition will reach the Redmi Note 9 as V12.5.2.0.RJOINXM.
https://www.notebookcheck.net/MIUI-12-5-Enhanced-Edition-lands-on-the-Xiaomi-Redmi-Note-9-in-India.576137.0.html