These two handsets on Sprint got the Android 7.0 Nougat update last week, and now Verizon Wireless does the same. The new firmware has 1.3 GB in size and rolls out in stages, so it might take a while for it to reach all compatible handsets.
http://www.notebookcheck.net/Samsung-Galaxy-Note-5-and-Galaxy-S6-Edge-get-Android-Nougat-on-Verizon.212964.0.html