[Fedora-legal-list] Re: Wikipedia license change

[Eric Christensen]

On Thu, May 28, 2009 at 16:42, Richard Fontana <rfontana at redhat.com> wrote:
> On Thu, 28 May 2009 15:31:13 -0400
> Eric Christensen <eric at christensenplace.us> wrote:
>
>> Hi Richard,
>> Thanks for the information.  What does this mean for current works
>> that are now downstream if we change the license?  Would we have to
>> give general permission to those works or are they still covered
>> because they met the requirements of the original license?
>
> Hi Eric,
>
> Not sure if this is what you are asking, but: We can (and probably
> would want to) extend permission to cover all past works that have been
> released. This would not revoke the original permissions given under
> the OPL, as those permissions are permanent, but it would supplement
> them (i.e., past works would thereafter become dual-licensed under OPL
> and CC-BY-SA).
>
> If some Fedora work W licensed under OPL is modified downstream by A
> (W'), and assume that the OPL requires A to license W' including its
> changes under OPL:  A can relicense W' under CC-BY-SA by agreeing to
> relicense its changes under CC-BY-SA, but otherwise a downstream
> recipient of W' receives it under OPL only.
>
> - RF

Richard,
That's exactly what I was asking about.  Thanks!

Eric