AT&T Samsung Galaxy S5 is getting an update to Android 4.4.4. The 500 MB update will reach devices shortly and you may just get the OTA notification as you read this. The update includes some new bloatware AT&T would like you to use plus voice-over LTE (also known as HD Voice).
The official changelog includes the following:
- Android KitKat 4.4.4
- Miscellaneous improvements, bug fixes, and security updates
- HD Voice capability*
- AT&T Service additions:
- Mail – ATT Mail (att.net mail)
- AT&T Live
- Remote Support
Keep in mind that, if your device is rooted, you may lose the root once this OTA is installed. No news of Lollipop in sight for now, sadly.