Questions / Concepts GPL. Was: Re: GPL License with clause for Web use?

[simo]

On Thu, 2007-11-22 at 15:18 +0000, Sam Liddicott wrote:
> * Alex Hudson wrote, On 22/11/07 14:36:
> >
> > I think you've answered your own question - it is in the GPLv3, in 7b :D
> >
> > Section 7 enumerates some specific, limited, requirements that you can
> > supplement the GPLv3 with. The AGPL is treated completely specially:
> > there is no specific enumeration of the single requirement for a
> > web-quine.
> >
> > That's the difference. Any additional restriction in the Apache license
> > must be matched by similar language in the GPLv3 for it to work. The
> > AGPL restriction, which has no such similar language in the GPLv3, only
> > works because the AGPL has preferential status. You can't add additional
> > restrictions beyond those the GPL sets out, unless you're the AGPL.
> >   
> Does this mean the the AGPL is effectively an "or later version" back
> door for people who don't choose the "or later version" suffix? (If
> there is even such an "or later version" for GPL3)

Yes there is an or later for GPLv3 it is necessary, without it it would
be a nightmare to re-license to GPLv4 10 years from now.

Simo.