The update comes as MIUI 188.8.131.52.PDMMIXM, weighs 644 MB in size and brings August Android security patch to the device along with MIUI 12. If you haven’t received the update on your device, you can download the Recovery ROM from the link below and try flashing it using the recovery method, but it may not work as it might be staged rollout.
MIUI 12 focuses on Privacy, Security, and Multitasking and shows all sensitive behaviors of an app. It brings brand-new design, Animations, Dark Mode 2.0, along with new features such as Floating Window, New Control Center, Enhanced Privacy Protection features such as Interceptor, Flare, Hidden Mask Mode, Though we suspect, all the above-mentioned features may not be available on Redmi 6 Pro since it is based on Android 9.
MIUI 12 For Redmi 6 Pro : Download