Licenses

The grid

License	Intended scope	Copyleft	Modifiability	Attribution	Worldwide applicability
Against DRM	-	?	?	?	?
CC BY	-	no	no	yes	national adaptations
CC BY-SA	-	yes	no	yes	national adaptations
Design Science License	-	yes	yes	no	same license (English version)
Free Art License	-	yes	no	yes	exact translations
GNU FDL	documentation	yes	yes	no	same license (English version)
GNU GPL	software	yes	yes	no	same license (English version)

License list

Against DRM

• current version: 2.0

Creative Commons licenses

Creative Commons BY (Attribution)

• current version: 2.5

Creative Commons BY-SA (Attribution-ShareAlike)

• current version: 2.5

Design Science License

• not maintained anymore

Free Art License

• current version: 1.2

GNU FDL (Free Documentation License)

• current version: 1.2

GNU GPL (General Public License)

• current version: 2.0

Current draft

Tentatively, the following licenses are known to meet the criteria set out by the definition:

• Creative Commons Attribution License (not free for Debian)
• Creative Commons Attribution/Share-Alike License (not free for Debian)
• GNU Free Documentation License when no invariant sections are specified (this is important)
• Free Art License (not free for Debian)
• Against DRM 2.0
• All free software licenses. While many of them are specific to software, some are worded so as to apply to all kinds of digital works. For example, the GNU GPL is often applied to non-software works (such as computer graphics, game scenarios...).

In addition, works in the public domain are also free content as per the definition.

To be verified:

• Freie Wiki-Lizenz

Controversial:

• IANG license - seeks to enforce lots of things that are outside of the copyright realm (like organization scheme, right of developers to have a voice in the development process, etc.)