After several delays, the first batch of marshmallow updates from Samsung are rolling out. First up are the 2015 phablets, the Galaxy Note 5 and Galaxy S6 Edge+. The updates bring the devices up to Android 6.0.1, bringing you features such as Now on Tap and Doze.
The update should be rolling out to all carriers so be sure to let us know if/when you get it. If you want to do a manual check you know the drill. Settings–> About Device –> Software Update.