Reported this in bugtracker, even if they kick me out I don't give a sh*t, I don't want to help to improve a manifacturer Custom ROM..
"Totally lack of kernel, sources and drivers update
Not a proper bug, but we have to say that the Mi2/S has received no one proper update from it's release.
Kernel, sources, drivers, all the same from the ROM MIUI V5 based on Android 4.1 (2012, gentlemen, 2012).
That ROMs that Xiaomi is releasing (MIUI 6 "Special Edition" Kit Kat and now MIUI 6 Lollipop) are like Custom ROMs. It's like I take all I need from MIUI V5 Jelly Bean and build a MIUI 6 ROM based on Kit Kat or on Lollipop, using all the hacks needed to let it work. That means no performances improvements, no better camera shots, no better heat managment etc. That's not a company support. That's a support that can be done from any external developer from all over the world.
I decided to report that to see what members, moderators, devs and so on think."
I ask to beta testers who are reading to support this
"bug". Thank you.