The Chinese version of the Redmi K30 Pro Zoom has started receiving an OTA update containing not only MIUI 12 but also Android 11 too. This could mean that a global rollout of the software is just around the corner.
The software version is V18.104.22.168.RJKCNXM stable and weighs 3.3 GB. However, some users who have already installed the update report issues with battery life and sound. Of course, Google's latest security patch for November is also baked in.
Source (in Chinese)