The Stable update V188.8.131.52.RGBRUXM has been officially released for POCO M4 Pro 5G (codename is evergreen). Before updating, please make sure you have downloaded the exact ROM matching your Xiaomi phone/tablet. In Fastboot mode, you can check model code by typing
fastboot getvar product in cmd/shell.
The firmware files posted here are all official Xiaomi ROM, xiaomiROM.com do not own and never modified those firmwares，you will always download the file from Xiaomi server.
You may interest in those contents: POCO M4 Pro 5G ROM Topics Xiaomi Devices Index
Download Poco m4 pro 5g (evergreen) Russia (RU) MIUI 12.5 V184.108.40.206.RGBRUXM Recovery ROM with Android 11.0. Firmware size is 2.6 GB.
Download Poco m4 pro 5g (evergreen) Russia (RU) MIUI 12.5 V220.127.116.11.RGBRUXM Fastboot ROM with Android 11.0. Firmware size is 5.2 GB.