Long-suffering AT&T Windows Phone owners are usually the last to get OS updates, but now an AT&T support staff has said on their forums the wait is nearly over.
On the AT&T forums ATTMariana said:
Microsoft Windows 8.1 will be available from AT&T on certain devices as early as this week! Thanks for your patience -we’ll have more details posted soon on the AT&T Consumer blog.
According to Microsoft’s update site the WP8.1 software is in testing on all the carriers in US, but I expect it will not be long before the 925 and 520 starts showing update notifications.