ATF: Landmark - Length of 2016 Landmark 365 Madison

I just picked up a brand new LM 365 Madison. The date of manufacture was 12-02-16. I recently went out to the Heartland website and looked at the specs on the 2016 Heartland Madison and noticed that the specifications have changed from what they were when we ordered our coach. For example:

Old length = 41' 9" New length = 40' 5"
Fresh Water, Grey Water, and Black Water tank capacities are different. There are other differences.

Based on our VIN, what specifications are correct?

Thanks,
Greg Sandoe