Maybe a call to the CAT dealer would shed some light....It would be interesting to know what the date of the last update was, and, what the update does. My C13 had a build date of 12/04, so if CAT is still providing updates, that's better than updates (no longer) to, say, my laptop or phone or TV in the motorhome, for that matter. Or the worthless sat dish (KVH) on the roof!