Just one year after it came out.
II'll never buy anything from Teclast again. In fact I'm done with off-brand android tablets, period. It's clear that the android ecosystem depends on the OS being kept up to date, and these fly-by-night Chinese manufacturers dont care about building brand loyalty - they seem to lose interest in you once they've taken your money just one time.
Really disappointing that the community has been unable to produce a custom ROM for this device.