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3. The GPL, LGPL, and Mozilla Licenses > 3.1. GNU General Public License

GNU General Public License

The GNU’s General Public License, or GPL, is one of the foundation open source licenses. Created by the Free Software Foundation (FSF), which has made many contributions to open source coding, it is the preferred license for projects authorized by the FSF, including the GNU Emacs Editor and the GNU C Compiler, among literally scores of others, including the GNU/Linux kernel.

The intentions behind the license and the premise underlying it are explained in the license’s preamble, which is included here in its entirety. The preamble follows the copyright notice,[2] and a notice that prevents modifications, ironically enough, to the license itself: “Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.” While the license permits the creation of derivative works from the licensed code, it does not permit the creation of derivative licenses from the license itself.


  

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