The upgrade updates the points-of-interest database (sort of like a
Yellow Pages) and adds more roads in certain rural areas as well as
accounting for some road construction changes.

Is it worth it ????   Only if you are finding that the roads you wish to
use are not properly represented by what you have.    New upgrades come
out in the fall, so if you are going to upgrade you might wait a few
months and get an even newer release.

John