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According to the GPL FAQ, anyone can make a new license using a modified version of the GPL as long as they use a different name for the license, do not mention "GNU", and remove the preamble, though the preamble can be used in a modified license if permission to use it is obtained from the Free Software Foundation (FSF).
The GNU Free Documentation License (GNU FDL or GFDL) is a copyleft license for free documentation, designed by the Free Software Foundation (FSF) for the GNU Project.It is similar to the GNU General Public License, giving readers the rights to copy, redistribute, and modify (except for "invariant sections") a work and requires all copies and derivatives to be available under the same license.
C. Cadabra (computer program) Calibre (software) CamStudio; CAPD library; Cdrdao; CFEngine; Chamilo; ChatSecure; Chrony; CinePaint; Citadel (software) Citra (emulator)
A GNU license or GNU General Public License , is a series of widely-used free software licenses that guarantee end users the freedom to run, study, share, and modify the software. Version 1 was released 25 February 1989 by Richard Stallman and its last version (3) was published on 29 June 2007. Meanwhile it has originated other derivations to ...
In the mid-1980s, the GNU project produced copyleft free-software licenses for each of its software packages. An early such license (the "GNU Emacs Copying Permission Notice") was used for GNU Emacs in 1985, [5] which was revised into the "GNU Emacs General Public License" in late 1985, and clarified in March 1987 and February 1988.
The following table compares various features of each license and is a general guide to the terms and conditions of each license, based on seven subjects or categories. Recent tools like the European Commissions' Joinup Licensing Assistant, [ 10 ] makes possible the licenses selection and comparison based on more than 40 subjects or categories ...
Free-software licenses that use "weak" copyleft include the GNU Lesser General Public License and the Mozilla Public License. The GNU General Public License is an example of a license implementing strong copyleft. An even stronger copyleft license is the AGPL, which requires the publishing of the source code for software as a service use cases.
This is an accepted version of this page This is the latest accepted revision, reviewed on 27 January 2025. Software licensed to ensure source code usage rights Open-source software shares similarities with free software and is part of the broader term free and open-source software. For broader coverage of this topic, see open-source-software movement. A screenshot of Manjaro linux running the ...