The Stable update A15.0.4.0.VGWRUXM has been officially released for Redmi A5 / POCO C71 (codename is serenity). 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 MIUI or HyperOS 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: Redmi A5 / POCO C71 ROM Topics Xiaomi Devices Index
Download Redmi a5 / poco c71 (serenity) Russia (RU) MIUI A15.0.4.0.VGWRUXM Recovery ROM with Android 15.0. Firmware size is 3.1 GB.