Relicensing CC-BY-SA 2.x as 3.0 (was: playonlinux_3.4-1_i386.changes REJECTED)

[Evgeni Golov]

On Fri, 8 May 2009 08:32:16 +0000 (GMT) Miriam Ruiz wrote:

> > De: Evgeni Golov <evgeni at debian.org>
> 
> > > The CC 2.5 licenses are DFSG-incompatible (whilst the
> > relevant 3.0 ones are ok).
> > 
> > I heard it is allowed to relicense 2.x stuff as 3.0, as it
> > is with GPL
> > with "or later" clause? What's ftp-masters opinion on
> > this?
> 
> I thought that was only for CC-by, not for CC-by-sa. I guess it should not be really that difficult to convince upstream to relicence it though, if they can be contacted.

As far as I can tell, the 2.x SA versions say "same attribution" as in
"same or similar license", quoting from [1] 4b:

You may distribute, publicly display, publicly perform, or publicly
digitally perform a Derivative Work only under the terms of this
License, a later version of this License with the same License Elements
as this License, or a Creative Commons iCommons license that contains
the same License Elements as this License (e.g. Attribution-ShareAlike
2.0 Japan).

You find a similar paragraph in CC-BY-SA 2.5 too. [Not in 1.0, there it
is "only under the terms of this License"].

[1] http://creativecommons.org/licenses/by-sa/2.0/legalcode

-- 
Evgeni Golov <evgeni at debian.org>
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