CameraVersion is designed to be updated by the user: just use the button 'Phil's Site', and use the link
marked "Windows Executable: exiftool-8.56.zip" (version can change, of course) to download (>3 MB)
The zip contains 1 file, "exiftool(-k).exe"; put that in the same folder as CameraVersion, and it should work,
just tested it with version above, mine said 100 C .
(note that it will take a couple of seconds to react the first time, because it'll automatically rename the exe)
hope that helps,