I got a OnePlus One - a device from China that is on 4.4.4 and where the developers promised (yeah, okay.. Just words so far) a timely upgrade to the next versi

I got a OnePlus One - a device from China that is on 4.4.4 and where the developers promised (yeah, okay.. Just words so far) a timely upgrade to the next version (”3 month after AOSP release").