gm9 isn't really something you need to update (as you are not really going to use it that often).
1.8.0 is the latest version and you can update it by replacing the files with the new one.
gm9 isn't really something you need to update (as you are not really going to use it that often).
1.8.0 is the latest version and you can update it by replacing the files with the new one.