Android 4.3 Jellybean update for Samsung Galaxy S4 on Verizon Wireless is live. The update ( Samsung calls it as Software Update 3 -SU3 with build name – VRUEMJ7 ) will be rolling out to devices starting today.
Along with OS update to Android 4.3 Jellybean this update also brings Galaxy Gear support to Galaxy S4 and also enables LTE Band 4
Jelly Bean 4.3 Operating System
Galaxy Gear Support – for detailed information about Galaxy Gear features, please click here to visit the Galaxy Gear page
Band 4 enable
Group Play 2.5 (Note 3 version)
Samsung KNOX support
You should be on stock unrooted ROM to receive the OTA update notification, if not just wait for stock rooted ROMs based on this update to come up.
Source : Samsung