The wait is over.
Yesterday we reported that AT&T was planning on releasing the double punch Amber and Windows Phone 8 GDR2 OS update today. As predicted, the update has begun at 1 PM ET / 11 AM PT and users should now be able to head into their Settings > Phone Update > Check for updates to initiate the process. The update will bump the firmware to 1325 and the OS to version 10327.
Nokia and AT&T have been working on bringing the coveted updated for a few weeks now, coming in near last in terms of the global rollout. Nokia had previously stated that the Amber update should be completed by the end of September and while that was accurate for most users, those on AT&T had to sit by as T-Mobile and Verizon both beat them to the delivery.