The update initially started rolling out back in April but a week later was put on hold. AT&T's explanation was that the company was working with Samsung to look into potential improvements.
According to the new change log, the changes include:
- Android 4.4 OS upgrade
- Copy and paste improvements
- Easier to insert pictures and videos in email or messages
- Camera app accessibility from the lock screen
- Call reliability improvements
If you didn't get the update last time, check your phone now to see if it is available.