[Mad Scientist]

One on my Kodi boxes is an older MX2. Had anyone upgraded the Android OS off of 4.2?

[Soulbind]

Chinese manufacturers are "keeping it real oldschool style", they don't like updates .

Seriously now, no, 4.2.2 on firmware versions 1.2 was the last one released, though you could probably still upgrade Kodi to the latest version.