[cc-licenses] ShareAlike and version compatibility

Evan Prodromou evan at prodromou.name
Thu Apr 13 12:25:53 EDT 2006


On Thu, 2006-13-04 at 15:46 +0000, Terry Hancock wrote:

> So the problem is that the CC-By-SA-1.0 does not have the
> license upgrade clause?

Actually, I don't think it's possible to upgrade a work from any of the
licenses, version 1.0, 2.0, or 2.5, unless you a) get the licensor's
permission or b) make a derivative work.

> Sounds like you'll need to either scrub the 1.0 content out
> of the wiki or get original sources to upgrade the license.

Yeah, or just stay at 1.0 until there's a compelling reason to upgrade.
There are a lot of wikis that have done so.

> Alternatively, you could use a blanket license statement for
> the site which says that content is under the By-SA 2.5 "unless
> otherwise noted", and then put "By-SA 1.0" notices on the
> affected pages.

I think our vague plan is to a) upgrade any contributions by anonymous
contributors automatically; b) get permission from as many identified
contributors as possible, and c) isolate or delete stuff we can't
upgrade. I think it'd be actually possible to "skip over" contributions
by people who won't upgrade or whom we can't contact.

~Evan

-- 
Evan Prodromou <evan at prodromou.name>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.ibiblio.org/pipermail/cc-licenses/attachments/20060413/0e14aa72/attachment.htm 


More information about the cc-licenses mailing list