Now, I have reported on a post from AT&T Forums about its plan on distributing Lumia Cyan and Windows Phone 8.1 update. Well, indeed, that those who are AT&T customers and own the Lumia 1520 will be getting the updates starting today, according to the second largest carrier in the U.S official statement on these updates.
So yes, the first one to get the update is the Lumia 1520, with all of Windows Phone new features like Action Center, Word Flow keyboard, Cortana, etc… Along side the Lumia Cyan updates, with more control for your screen brightness, audio setting, enhancement for the camera, and new features for Creative Studio, Nokia Camera, and other stock-apps that are pre-installed and exist in the handset.
On the topic of other Lumia handsets, like the 925 or the 1020 for example, AT&T has not talked about the ETA for those phones yet. But since it has come to the Lumia 1520, others should be following shortly after. For now, let’s just wait and see. Also, do not forget to go in your Setting–> Phone Update–> Check for updates to check for yourself.