Mr Ivan has released an Android 6.0.1 for Mi Note Pro.
Here is it. http://www.miui.com/thread-4510085-1-1.html
ROM link. http://miuirom.xiaomi.com/rom/u4563403/6.6.15/miui_leo_ivan_6.6.15_78ff817c53_6.0.zip
Installation:
Backup your current data
Do a Wipe factory reset
Flash the ROM using...
