Which is the best to use in a debian/copyright file, the /usr/share/common-licenses/GPL symlink or the /usr/share/common-licenses/GPL-2 file? If the program is licenced under the GPL 2 only obviously the GPL-2 file is correct but if it is GPL 2 or later it makes sense to me to use the GPL symlink which will presumably get updated along with any new versions of the GPL. Jonathan Riddell