Finally Sony has started rolling our the Android 4.2.2 update for Sony Xperia Tablet Z. Android 4.2.2 Jelly bean update brings new features and it is released for the LTE version of the device.
The Xperia Tablet Z Android 4.2.2 Jelly Bean update comes as firmware versions 10.3.1.A.0.244 and you can check to see if it is available for your device from the settings menu.
[Via] XperiaBlog