Is the TrailPro model being described and sold here the new model that was updated by ThermaRest in 2011? What's the difference between the new model and the old one?

Tech Specs:

Material:

polyester, nylon 

Dimensions:

(regular) 20 x 72 in, (long) 25 x 77 in 

Rolled Size:

(regular) 28 x 18 in, (long) 33 x 18 in 

R-Value:

4.8 

Shape:

streamlined rectangular 

Pump:

no 

Stuff Sack:

yes 

Weight:

(regular) 910 g, (long) 1210 g 

Recommended Use:

camping, backpacking 

Manufacturer Warranty:

lifetime