I think that upgrades to the original programs are more than software as the newer machines seem to have more parameters. The originals give just wind speed, but not if it is headwind, tailwind, or component. But the software has been changed as there don't seem to be all of the references to Native Indian reservations anymore.

If you are on a polar route over Hudsons Bay watch the outside temperature drop up to 10deg C while over the bay.