Xiaomi has silently started the rollout of MIUI 13 globally. The Redmi Note 10, Redmi Note 10 Pro, and Mi 11 Lite 4G kick things off, as all three phones are now receiving early Android 12-based builds, albeit only for Mi Pilot testers.
https://www.notebookcheck.net/Redmi-Note-10-Redmi-Note-10-Pro-Mi-11-Lite-4G-receive-early-Android-12-based-MIUI-13-updates.595073.0.html