Smartphone manufacturers handle Android updates differently, either
shipping stock (or
near -
stock) versions of Android on their devices or choosing to build custom ROMs on top of AOSP Android.
This tablet
ships with Android 4.4.4 KitKat in a very
near stock form, and while that would normally be a good thing, it's been over three months since Android 5.0 Lollipop officially arrived and even longer since it was announced, and definitely what you'd expect a new device to be running.