It's not possible that updating GSX would have any effect on KDEN parkings, or any other airport. Nothing has changed in GSX in relationship to how GSX indicates if a parking is too small for your aircraft, which is a comparison between the parking radius and your wingspan.
So, if there was a problem, it was there already, and you are visiting KDEN with an airplane with a wingspan larger than it were used to.
Or, for some reason, like a conflicting AFCAD, GSX is using data from another AFCAD file. The first thing to check, is what AFCAD is in use by GSX, by selecting the customizing parking option in GSX, and check the name of the .BGL in use.
It's supposed to be the one that comes with the airport. If it's not, perhaps you might have an indication of a conflicting file which should be removed.