Verizon's Droid phones have traditionally been slow on updates, which isn't surprising for Verizon. Still, you have to wonder what's up when the hardware is sometimes very similar to the current gen Moto X. At any rate, Verizon has finally started rolling out Marshmallow to the Droid Turbo 2 (a few months after the Moto X Pure). That means lots of new features to play with.
You probably have a good grasp of what comes with Android 6.0 by now, but Verizon has a pretty detailed rundown on its update page. Here's the gist.
Now on Tap
Expandable storage (adoptable)
Do not disturb mode
Expanded volume controls
Do not disturb integrated with Assist
Attentive Display now part of Moto Actions
The update will be delivered to devices on a WiFi network only because of the size. Make sure your battery is charged and start mashing the update button. Verizon will probably be rolling it out in waves, so don't be surprised if it's not available right away.