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Re: [glob2-devel] Version 3 of GPL license issued yesterday

From: Martin Voelkle
Subject: Re: [glob2-devel] Version 3 of GPL license issued yesterday
Date: Mon, 2 Jul 2007 19:59:30 +0200

On 7/2/07, Cyrille Dunant <address@hidden> wrote:
On Saturday 30 June 2007 11.32:38 Kieran P wrote:
> Ok. Then all someone needs to do is update the COPYING file in master
> branch, and it will be included in all future versions.
> Does anyone actually have a list of changes from version 2 though? Is it
> just rewritten after 16 years to make things clearer and include some
> little things in it? For all we know, it could grant someone the permission
> to take over a project when inactive for a certain period of time. Who
> knows ^_^
> Regards
> Kieran

Actually, to change the license from 2 or above to 3 or above, you _must_ have
the permission of all authors.

Really? You just happen to have code licensed under version 2 or
above, chose a subset (version 3 and above) of all the licenses you
can chose from, and distribute the work under all these licenses.

As of yet, the "auto-upgrade" really means that the code is currently
dual-licensed GPL v2 and GPL v3.

Dual-licensing means you can chose which license (out of 2 licenses)
you agree to. By induction, you can extend that to an infinite set of
version n or above licenses, and agree with all the versions n+1 or
above, effectively stopping the distribution under license version n.

Note also that v2 and v3 are incompatible, essentially because v3 _adds_

But "v2 or later" can be redistributed under "v3 or later".
That's how I interpret the "v2 or later" clauses. IMHO, IANAL, etc.


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