Every official MIUI 12 build for POCO devices. MIUI was succeeded by HyperOS in late 2023 — check the HyperOS 2 and HyperOS 3 lists to see if your phone has a newer update.
Most devices have moved from MIUI to HyperOS. Older devices may still receive security patches on MIUI — the newest build for each device is shown at the top of the table.
How do I install a MIUI 12 ROM?
Download the Recovery ROM and install it through Settings → About phone → System update → ⋮ → Choose update package. Fastboot ROMs require an unlocked bootloader and Mi Flash Tool.