Unclenick, I downloaded the newest update manually and saved it, but I haven't installed it or run GRT for a couple of months, so whatever is installed on my computer is the last version, but the current update. If the data files are in a readable format, I can try to extract them (if I can remember where they're located) and send them to you for comparison.
If anyone wants historical versions for comparison, I have versions 1218, 1658, and 1774 in my downloads directory, along with 1812, which is the new version.