Licensing talk:Main

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The following metadata was found in MoinMoin that could not be converted to a useful value in MediaWiki:

  • acl: TomCallaway:read,write,delete,revert EditGroup:read Known:read All:read

WTFPL license should link upstream

http://sam.zoy.org/wtfpl/ -- there's no need for us to carry this on the wiki AFAICT. --stickster 22:32, 5 August 2009 (UTC)

Condensed GPL Compatibility Matrix

I found the GPL compatibility matrix hard to assimilate because of its width, largely the fault of the use of "only", "or later", and "OK if you convert to" text. I prepared a condensed version that uses the licenses' short names and states the resulting license in each cell without explanatory text. I also removed the footnotes since they add no essential information. Here it is:

Destination
Source Mode of use GPLv2 GPLv2+ GPLv3+ LGPLv2 LGPLv2+ LGPLv3+
GPLv2 copy or link (GPLv2) GPLv2 NO GPLv2 GPLv2 NO
GPLv2+ copy or link (GPLv2) (GPLv2+) (GPLv3+) GPLv2+ GPLv2+ GPLv3+
GPLv3+ copy or link NO GPLv3+ (GPLv3+) GPLv3+ GPLv3+ GPLv3+
LGPLv2 copy (GPLv2) (GPLv2+) (GPLv3+) (LGPLv2) LGPLv2 GPLv3+
LGPLv2+ copy (GPLv2) (GPLv2+) (GPLv3+) (LGPLv2) (LGPLv2+) (LGPLv3+)
LGPLv3+ copy NO GPLv3+ (GPLv3+) GPLv3+ LGPLv3+ (LGPLv3+)
LGPLv2 link (GPLv2) (GPLv2+) (GPLv3+) (LGPLv2) (LGPLv2+) (LGPLv3+)
LGPLv2+ link (GPLv2) (GPLv2+) (GPLv3+) (LGPLv2) (LGPLv2+) (LGPLv3+)
LGPLv3+ link NO GPLv3+ (GPLv3+) (LGPLv2) (LGPLv2+) (LGPLv3+)

Notes:

  • I'm conflating Lesser GPL 2.1 and Library GPL 2.0 as in the Good Licenses list.
  • I realized the FSF's original table does not have "or later" in the row labels. I have asked FSF for clarification.
  • According to the original footnotes, LGPLv2 converts to GPLv2+ and LGPLv3 converts to GPLv3, in addition to the obvious conversion of a superset of versions to a subset. I assume the idea is that later LGPL versions will continue to convert to the corresponding GPL versions so that LGPLv3+ converts to GPLv3+; I have asked FSF to confirm this.
  • I am considering adding rows and columns for GPLv3 and LGPLv3 because a few Fedora packages use those licenses.

Once the issues are resolved, I would like to propose this table for adoption on the licensing page.

Mattmccutchen 02:43, 29 October 2009 (UTC); updated 19:47, 31 January 2011 (UTC)


+1 for this condensed table. It's very nice looking. :)

--Dafrito 17:49, 26 June 2010 (UTC)

Deadlink

Please replace http://www.osedu.org/licenses/ECL-2.0/ with http://opensource.org/licenses/ECL-2.0 for ECL 2.0