
T-Mobile has approved the latest KitKat update for their version of the Moto X, bringing the device up to Android 4.4.2. It's an incremental update from 4.4, but it brings a few extra features including better wireless printing options, improved battery life, and a fix for delayed emails.
It makes sense that this model of the Moto X was the first to see this update, as T-Mobile's variant of the Moto X is just an unlocked Moto X, so it doesn't have to go through the carrier for any approval. Motorola handles pushing the updates directly to the device. You should begin seeing the update notification on your device soon, but you can manually go into settings and check for the update to speed the process along.
We'll be sure to let you know as soon as other carriers approve this update and begin pushing it out to the rest of the Moto X owners.
source: Motorola