2008/3/30, Paul Mattal <paul@mattal.com>:
What is the right way to list all the various contortions you can now have of GPL in the license array? There's:
GPL - any version of GPL GPL2 - only version 2 GPL2+ - version 2 or later GPL3 - version 3 only GPL3+ - version 3 or later
These are all substantively different (except the last two.. for now) so how do we express these? Should we actually create common licenses GPL2+ and GPL3+ which reference the other two, and make GPL reference them all? Do we need a GPL1 and GPL1+?
This issue was discussed in past (I'm lazy to search for exact thread(s), sorry). The current scheme is: GPL - GPLv2 "or, at your opinion, any later version" GPL2 - GPL2 only (e.g. Linux kernel) GPL3 - GPL3 "or, at your opinion, any later version" I don't know of a single project with GPLv1 or GPLv3-only license. -- Roman Kyrylych (Роман Кирилич)