How do I know that the Genesis trucks that I am purchasing has all the latest factory updates?

The forums talk about versions 1 to 3, but in an Australian magazine article they talk about the spur gears now having a front bearing support, and show pictures of it, which the version 3 does not have.
My local dealer in Australia ordered me the latest truck from the distributor, and it arrived without this feature and possibly missing other updates.
The magazine also said that it has an updated radio, heavier cross pins in the CVD's and an uprated roll bar.
I don't know if these were changed in the earlier versions.
According to the distributor, Cen does not make any reference to different versions on the box and the distributor can't tell without opening the boxes, what updates each truck has.