This is an iteration of the Xiaomi 12S Ultra MIUI 14 ROMs. The first MIUI 14 firmware or update for Xiaomi 12S Ultra has already been released on 2022-12-05 by Xiaomi. You can now download the stable, weekly, or beta MIUI 14 ROM for your phone/tablet with device code thor. The last version of Xiaomi 12S Ultra MIUI 14 ROM has been rolled out on 2023-12-14. It is recommended to update to the latest MIUI14 to experience the new features. If you want to upgrade or downgrade your MIUI version, you can find more details on the Xiaomi 12S Ultra ROM section page.