The update also adds a new feature to the Moto X and Moto G, which allows a user to start filming a video with the camera, stop it, and resume filming from where he left off. Another new feature being made available to all three models, is Moto Alert. This is an app that will contact your friends and family in case of an emergency.
With three models getting updated at the same time, it might take awhile before Android 4.4.4 reaches your phone. Be patient and before you know it, your Moto X, Moto G or Moto E will receive notification that Android 4.4.4 is ready to be installed on your handset.
Motorola India reveals that Android 4.4.4 is being sent out to the Motorola Moto X, Moto G and Moto E
source: @MotorolaIndia via AndroidCentral