Unfortunately this is not an official build from Motorola, but rather a custom ROM courtesy of XDA member, Schischu. This is an Android 4.4.2 KitKat-based OmniRom build meaning that if you haven’t rooted your Motorola XOOM tablet, you will have to do so. If you have no experience in rooting and flashing custom ROMs, this is where you’ll probably need to start doing some homework if you’d like your XOOM tablet to run the latest Android build. As it stands there are still a couple of minor issues with the build, such as the selection of alternate keyboards and audio dock volume controls, but like we said they’re minor and should not affect the overall experience.
In any case if you’d like to get started on flashing the custom ROM onto your XOOM tablet, head on over to the XDA forums for the details. For those running the WiFi-only model, you can head here; 3G models over here; and LTE models over here.