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Diagram of software under various licenses according to the FSF and their The Free Software Definition: on the left side "free software", on the right side "proprietary software". On both sides, and therefore mostly orthogonal, "free download" . A software license is a legal instrument governing the use or redistribution of software.
Proprietary software is software that grants its creator, publisher, or other rightsholder or rightsholder partner a legal monopoly by modern copyright and intellectual property law to exclude the recipient from freely sharing the software or modifying it, and—in some cases, as is the case with some patent-encumbered and EULA-bound software ...
Before 1996 under BSD license, it was switched to a proprietary license while still having the source code available. [50] Quake: id Software: 1996 1999 Yes No No GPL-2.0-or-later: The map sources were also released under the GPL in 2006. [citation needed] Rise of the Triad: 3D Realms: 1994 2002 Yes No No GPL-2.0-or-later
These software license agreements are often labeled as end-user license agreements . Another impact of the decision was the rise of the shrink-wrap closed source business model, where before a source code driven software distribution schema dominated. [15] [17]
The Design Science License (DSL) is a strong copyleft license that applies to any work, not only software or documentation, but also literature, artworks, music, photography, and video. DSL was written by Michael Stutz after he took an interest in applying GNU-style copyleft to non-software works, which later came to be called libre works .
Freeware is software, most often proprietary, that is distributed at no monetary cost to the end user.There is no agreed-upon set of rights, license, or EULA that defines freeware unambiguously; every publisher defines its own rules for the freeware it offers.
In this scenario, one option is a proprietary software license, which allows the possibility of creating proprietary applications derived from it, while the other license is a copyleft free software/open-source license, thus requiring any derived work to be released under the same license. The copyright holder of the software then typically ...
This table lists for each license what organizations from the FOSS community have approved it – be it as a "free software" or as an "open source" license – , how those organizations categorize it, and the license compatibility between them for a combined or mixed derivative work. Organizations usually approve specific versions of software ...