On Sat, Jun 17, 2006 at 02:17:17AM -0300, Henry Lenzi wrote:
> On 6/15/06, Harald Geyer <Harald.Geyer at gmx.at> wrote:
> This is incorrect. Although there's nothing they can do about code
> already released under the GPL, as a copyright holder, they can do
> what they want regarding future releases. This is the reason so many
> so-called "free software business models" actually dual-license their
> product (under the GPL and a proprietary license). This is a GPL
> loophole, if you will.
Although you are correct that they can license new versions under
other licenses if they have sole copyright, doing so does nothing to
the rights of those who have already received GPLed versions. Once you
recieve a GPL version the license for that copy is unrevokeable. So
for example the version in maxima distributions and any future
versions based directly on that version are still perpetually GPLed.
--
Daniel Lakeland
dlakelan at street-artists.org
http://www.street-artists.org/~dlakelan