After delivering a big update for the Galaxy S4, AT&T isn't done with rolling out its OTA enhancements yet. The carrier is now delivering OTA updates to the Galaxy Note 2, the Galaxy S III, and the Galaxy Mega. AT&T says that the updates will bring "Android OS enhancements" to each device, but doesn't specify what such enhancements are. And if you're holding hope for Lollipop, don't be; these updates keep the phones on Android 4.4.2.
The updates require a WiFi connection to download, and you can check for the updates manually in your phone's settings menu if it hasn't already been pushed out yet. Be sure to check the source links for specifics from AT&T.
If you notice any changes or improvements, be sure to let us know in the comments.