Creative Commons v3.0 Launched
An anonymous reader writes "Creative Commons announced the release of its licenses on Friday 23 Feb 2007. Changes include "Clarifications Negotiated With Debian and MIT", CC-BY-SA "compatibility structure", endorsement control, etc."
a. [...] If You create an Adaptation, upon notice from any Licensor You must, to the extent practicable, remove from the Adaptation any credit as required by Section 4(b), as requested. All six primary Creative Commons licenses contain this provision. The GNU copyleft licenses (GNU General Public License and GNU Free Documentation License) do not allow authors to require downstream users to alter or remove credits. Therefore, it appears that the Creative Commons licenses are still incompatible with GNU licenses, and works under a Creative Commons license cannot be used in works under GNU licenses such as GPL computer games and GFDL software manuals. I've explained this in more detail on my user page on Wikimedia Commons.