License option

Dan Villiom Podlaski Christiansen danchr at
Thu Jan 14 00:59:26 PST 2010

On 14 Jan 2010, at 02:58, Michael Crawford wrote:

> The GPL is not just one license; in reality we have four licenses
> whose terms and compatibilities are quite significantly different from
> each other:
> GPL version 2
> GPL version 2 or any later version
> GPL version 3
> GPL version 3 or any later version

Another approach would be to consider GPLv2+ code as dual licensed; that is, list the licences as:

license GPL-2.0 GPL-3.0

Should a GPLv3.1 or GPLv4 ever appear, it can be added to the list on if/when needed.


Dan Villiom Podlaski Christiansen
danchr at

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