Welcome to the forum!
So my experience: I took delivery very early July, and the dealer mentioned the Polaris Comfort Clutch mod. After they looked it up, I was told by the dealer that mine had come from the factory with the clutch kit; so I did not need to pay for it! I have no idea how long the dealer had the unit in inventory, so no idea when it was made. I can say that my wife and I can hold a normal conversation upto about 4500rpm, after that it gets to progressively louder yelling. Vehicle is still stock, the way I got it.