[RMcNeal]

I have the same 2019 3791RD model. Some of the "upgrades" with the anniversary edition include:
Full Perimeter Crown Molding
Day & Night Roller Shades
Motion Light at Entry Steps
Motion Sensor LED in Pantry
LED Accent Lighting below Countertops
Upgraded Mattress from Denver Mattress Company
Double insulated laminated rear wall
LED Lighting including tail lights, storage compartments and safety lighting
Dometic Awning with Power Channel

Most of these are now standard since 2019.