GNU General Public License

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GNU General Public License

GNU General Public License

A software license from the Free Software Foundation (FSF) that ensures every user receives the essential freedoms that define "free" software, which is free of restrictions (see free software). Also called "GPL" and "GNU GPL," it was created to distribute the software of the GNU operating system (see GNU). Approximately 70% of free software packages are released under this license, including most GNU programs and thousands of others. The GNU General Public License is also considered an open source license (see open source).

Copyleft, Not Copyright
The license embodies the Free Software Foundation's "copyleft" rule, which means that anyone is allowed to make changes or extend the source code and redistribute it as long as the changes are clearly marked, and the modified work is also licensed under the GNU General Public License.

Version 3 (GPLv3)
In 2007, Version 3 of the license was released to address several issues. It forbids Tivoization, which is the practice of designing hardware to prevent modified software from running on it (see Tivoization), and it is designed to yield results that are more uniform between countries despite variations in their copyright laws. GPLv3 also provides explicit protection to users and redistributors of a program against being sued for patent infringements by organizations connected with the program's development.

The GNU Lesser GPL (LGPL)
The GNU Lesser General Public License is meant for free software that allows linking with non-free software. It was originally called the "GNU Library GPL," but the name was changed to remove the implication that all libraries should be licensed this way. "Lesser" means the license does less to protect the user's freedom than the regular GNU GPL. See GNU Affero General Public License, free software, open source, copyright, Free Software Foundation and GNU.



The GPL Notification
Increasingly, people open up consumer electronics packages and find a GPL license inside. This license from NETGEAR's Google TV set-top box was printed in September 2012.
References in periodicals archive ?
In 2006 the NS-3 network simulator project was born, which has GNU GPLv2 license terms with architecture and features which are documented on their Website (NS-3, 2006).
Ameriprise, Versata's proprietary software, Distribution Channel Management (DCM), used an open source XML parsing utility licensed under GPLv2 from XimpleWare.
GPLv2 +) and if possible upstream in the respective parents projects (MUA, GunPG, Server) to bring.
The wolfSSL library is a lightweight SSL/TLS library that is designed for resource-constrained environments and embedded applications, and is distributed under the GPLv2 license.
NS-3 tiene terminos de licencia GNU GPLv2, que alienta a la comunidad open source a participar en su desarrollo de codigo abierto.
TOS is distributed under GPLv2 and has been launched in October 2006.
lt;p>At the time, Galli also promised that Microsoft would make the source code and the binaries for WDUT available the following week under the GPLv2 terms.
126) The FSF's progenitor, Richard Stallman, implemented these novel licensing concepts in GPLv2 toward his greater ends of software freedom.
XAware is available for free use under the GPLv2 license and via a commercial license.
yaSSL employs the dual licensing model, like MySQL, offering products under the GPLv2 as well as a standard commercial license.
With Audi's endorsement, NETWAYS released the tool under GPLv2, contributing back to the open source community.