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    https://en.wikipedia.org › wiki › GNU_General_Public_License

    GNU General Public License - Wikipedia

    • The GNU General Public Licenses (GNU GPL, or simply GPL) are a series of widely used free software licenses, or copyleft licenses, that guarantee end users the freedoms to run, study, share, or modify the software. The GPL was the first copyleft license available for general use. It was originally written by Richard Stallman, the founder of the Free Software Foundatio… 展开

    History

    The original GPL was written by Richard Stallman in 1989, for use with programs released as part of the GNU project. It was based on a unification of similar licenses used for early versions of GNU Emacs (1985), the … 展开

    Terms and conditions

    The terms and conditions of the GPL must be made available to anybody receiving a copy of a work that has a GPL applied to it ("the licensee"). Any licensee who adheres to the terms and conditions is given permission to m… 展开

    Derivations

    The text of the GPL is itself copyrighted, and the copyright is held by the Free Software Foundation.
    The FSF permits people to create new licenses based on the GPL, as long as the derived licenses … 展开

    Linking and derived works

    According to the FSF, "The GPL does not require you to release your modified version or any part of it. You are free to make modifications and use them privately, without ever releasing them." However, if one releases a … 展开

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