As we speculated earlier today, Verizon's Samsung Galaxy S4 will indeed be the first U.S. model to be updated to Android 4.3 Jelly Bean, which brings with it Samsung's "premium suite" software. Samsung has updated its support page indicating that the new software version I545VRUEMJ7 should begin rolling out today.
Alongside the new version of Android, today's update includes support for the Galaxy Gear smartwatch and Samsung's KNOX enterprise security layer to Galaxy S4 owners on Verizon. There's also a new version of the Group Play media sharing app and support for Band IV LTE, allowing VZW GS4 owners to take advantage of their carrier's recent 4G LTE deployment on those frequencies.
If you're updating your Verizon Galaxy S4 today, hit the comment and let us know how you're getting on.