After Nexus devices, Google has rolled out Android 4.4.4 update to Moto G Google Play Edition. Additionally, Motorola has also started rollout of Android 4.4.3 on non GPE versions of Moto G and Moto X a few days ago.
Currently not all devices will get the update in the first wave rollout. While there’s no official schedule released, you can head on over to this Moto G GPe stock firmware thread in order to follow the discussion on the OTA updates.
Well, Android 4.4.4 few security bug fixes, new Dialer app(apk available) which was released in Android 4.4.3 update and few other performance tweaks are also embedded in the update.