The GNU General Public License, often abbreviated GNU, GPL or GNU GPL, is a free software license for programmers. It assures they will get the proper attribution for their code. The license can also be combined with several other licenses, including the MIT License, the BSD License and the GNU Lesser General Public License.GNU Operating System: License Compatibility
Requirements
The copyright and warranty information must be with the program. It must also have a copy of the original GNU General Public License. Any software that uses the GNU General Public License and is modified by another programmer must also be on the GNU General Public License. The source code must also be present with the program in order to use this license.Creative Commons: Requirements of the GNU General Public License
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GNU General Public License Release History
1989: Version 1 of the GNU General Public License released
1990: Version 2 of the GNU General Public License released
2005: Version 3 of the GNU General Public License released
