Only hours back did we report about the Galaxy Note 4 on the AT&T network getting the crucial Android Lollipop update, but it appears as though the Note 4 isn't the only phablet on the planet getting the sweets. According to Droid-Life, the previous-gen Note, i.e., the Note 3 too is on the receiving end of an OTA to Android 5.0 Lollipop.
At the time of writing this piece, the AT&T website did not acknowledge the update and thus, waiting for the Lollipop OTA on your Note 3 with bated breath might not be a great idea. Nonetheless, if you do receive the update, feel free to discuss below with what's changed!
Update: AT&T has now officially mentioned the update on its website, along with the changelog. The OTA update is 1059 MB in size, and you should be seeing it on your device within the next couple of days (you can try forcing it to show up right away through the Settings » About phone » Software updates menu.)