This is a free software license, compatible with version 3 of theGNU GPL. Its terms effectivelyconsist of the terms of GPLv3, with an additional paragraph in section 13to allow users who interact with the licensed software over a network toreceive the source for that program. The following licenses qualify as free software licenses, andare compatiblewith the GNU GPL. Theproliferation of different free software licenses is a significantproblem in the free software community today, both for users anddevelopers. You can use our publications to understand how GNU licenses work or helpyou advocate for free software, but they are not legal advice. The basic terms of the license permit users to run, study, share, and modify software.
How to Use GNU Licenses for Your Own Software
It also causes major practical inconvenience, because modifiedsources can only be distributed as patches. We recommend that you not use this license for anything except PHPadd-ons. It is incompatible with the GNU GPL because betory casino bonus itincludes strong restrictions on the use of “PHP” in thename of derived products. We recommend using GNUTLS instead of OpenSSL in software you write.However, there is no reason not to use OpenSSL and applications thatwork with OpenSSL. It also has anadvertising clause like the original BSDlicense and the Apache 1 license.
GPL-Incompatible Free Software Licenses
Some developers think that code with no license isautomatically in the public domain. We focus here on licenses that are often mistaken for freesoftware licenses but are, in fact, not free softwarelicenses. A nonfree license is automatically incompatible with the GNU GPL.
The copyright disclaimer
- However,programmers often copy source files from one free program intoanother.
- Please note that a successor to Pine, Alpine, is released under the Apache License, version 2.0.
- Most other countries have no systemof copyright registration.
- Thus, all of WebM’s license isfree and GPL-compatible.
- Because so many licenses meet these criteria, we cannot list themall.
- This is not a free software license, becauseit restrictswhat jobs users can use the software for.
Note that the latest version of OpenLDAP hasa different license that is compatible withthe GNU GPL. This is a free software license that is essentially the same as theMozilla Public License version 1.1. If partof a program allows the GNU GPL as an alternate choice, or any otherGPL-compatible license as an alternate choice, that part of the programhas a GPL-compatible license. This is a free software license, but it is incompatible with the GNU GPLbecause of its choice of law clause. The LPPL says that some files, in certain versions of LaTeX, may haveadditional restrictions, which could render them nonfree.
However, they all includedclauses that allow you to upgrade to new versions of the license, if youchoose to do so. The SGI Free Software License B version 2.0 is a free softwarelicense. This is a free software license, compatible with the GPL via anexplicit dual-licensing clause.
Code written by employees of the US government is a specialexception, since US copyright law explicitly puts that in the publicdomain; but this does not apply to works that the US pays a company towrite. Some countries allow authors to put code in the public domain, butthat requires explicit action which can vary among jurisdictions. The document with which they do so is calleda free software license. Absent alicense to grant users freedom, they don't have any.
Licenses for Works of Practical Use
- (Of course, any program ispotentially threatened by patents, and the only way to end that is tochange patent law to make software safe from patents.)
- This license is based on the terms of the Expatand modified BSD licenses.
- Recent versions of Condor (from 6.9.5 on) are released under the Apache License 2.0.
- However, there is no reason not to use programs that have been releasedunder the original BSD license.
- To learn more about how LGPLv2.1 iscompatible with other GNU licenses,please see ourFAQ.
- When this is the case,you can use the code under GPLv3 to make the desired combination.
This is a permissive non-copyleft free software license. The Academic Free License is a free software license, not copyleft, andincompatible with the GNU GPL. The Affero General Public License is a free software license,copyleft, and incompatible with the GNU GPL.
It has a copyleft similar to theone found in the Mozilla Public License. Add it in the source files, after the notice that saysthe program is covered by the GNU GPL. However, if you have written a program that uses QPL-covered library(called FOO), and you want to release your program under the GNU GPL,you can easily do that.
Despite the name, it is not clear whether this license wouldqualify as “open source”. In addition, it has a requirement for users to indemnify thedeveloper, which is enough to make many users think twice about using itat all. A detaileddiscussion of this license is also available. The PPLshould not be used for software, manuals, or other works that ought tobe free. The PPL has several provisions designed specifically for artisticperformances, and we have nothing against its use for art works;however, people reportedly advocate its use for software too.