Got this from att.
http://www.att.com/esupport/article.jsp?sid=KB424848&cv=820&_requestid=1973919#fbid=E1q_he5sQIk
Update summary**
AT&T released a software update for the Samsung Galaxy S 5 (G900A) on August 28, 2014. The update is available to customers to download via Firmware Over the Air (FOTA). Wi-Fi is required for update and the file size is 142.8MB.
What's changing?
Security updates and patchesApplication installation enhancementsAccidental emergency dial fixed on the lock screenSeveral lower layer modem crashes and sluggishness improvement enhancementsE-mail UX enhancementsS-View cover errorRe-activation lock improvements
Verifying the update
Drag down the notification bar, and tap the*SettingsScroll to the "System" category, and tap*About deviceThe following information displays:Android versionBaseband versionKernel versionBuild number
Sent from my SAMSUNG-SM-G900A using XDA Premium HD app