This open software license the license applies to any original work of authorship. Microsoft open licensing programs are a simple, costeffective way for small and midsize organizations to acquire the latest microsoft technology. This open software license the license applies to any original work of authorship the original work whose owner the licensor has placed the following notice immediately following the notice for the original work. I wrote one of those licenses, the open software license. May i license my own software under the apache license. Why should every developer contribute to open source software. Here are the top open source licenses and their risk categories. How should i apply the apache license to my own software. The software freedom law center provides practical advice for developers about including permissively licensed source. In our previous blog post you could read about open source software and why it is important to add a software license to your software. The osl is a copyleft license, with a termination clause triggered by filing a lawsuit alleging patent infringement. This open software license the license applies to any original work of authorship the original work whose owner the licensor has placed the following licensing notice adjacent to the notice for the original work. The open source initiative osi has certified it as an opensource license, but the debian project judged version 1. Note that this is also true for any updates to those releases the letter suffix no matter when they are made.
The apache software foundation and the free software foundation agree that the apache license 2. The gpl version 2 is the most popular of the second kind, the socalled reciprocal or copyleft. This license agreement is between the python software foundation psf, and the individual or organization licensee accessing and otherwise using this software python in source or binary form and its associated documentation. Open source licenses are licenses that comply with the open source definition in brief, they allow software to be freely used, modified, and shared. Licensor hereby grants you a worldwide, royaltyfree, nonexclusive. Any other use or attempt to otherwise copy, modify, sublicense or distribute the cip4 software is void and will automatically terminate licensees rights under this license. Source form shall mean the preferred form for making modifications, including but not limited to software source code, documentation source, and configuration files.
Or, you may accidentally make your software incompatible with the free software definition or the open source definition, or with the other commonlyused free software licenses that mpl 2. You can do what you like with the software, as long as you include the required notices. This permissive license contains a patent license from the contributors of the code. The free software foundation considers the apache license, version 2. The comparison only covers software licenses with a linked article for details, approved by at least one expert group at the fsf, the osi, the debian project or the fedora project. To apply the alv2 to a new software distribution, include one copy of the license text by copying the contents of license2.
This is a comparison of free and opensource software licenses. Exhibit a is provided in order to allow the source code to be made available under a secondary licenses. Licensed under the open software license version 2. The content of this site is licensed under the creative commons attribution 3. This license shall terminate automatically and you may no longer exercise any of the rights granted to you by this license if you file a lawsuit in any court alleging that any osi certified open source software that is licensed under any license containing this mutual termination for patent action clause infringes any patent claims that are. Microsoft open programs microsoft volume licensing. What is the difference between the apache license 2.
A detailed listing of the most popular, recently updated and most watched open software license 2. Open source licenses grant permission for anybody to use, modify, and share licensed software for any purpose, subject to conditions preserving the provenance and openness of the software. If you want to use or distribute code licensed under the mpl 2. Which open source software licenses to use and why. The mozilla public license mpl is a free and open source software license developed and maintained by the mozilla foundation. License shall mean the terms and conditions for use, reproduction, and distribution as defined by sections 1 through 9 of this document. For a list of licenses not specifically intended for software, see list of free content licenses. It is a weak copyleft license, characterized as a middle ground between permissive free software licenses and the gnu general public license gpl, that seeks to balance the concerns of proprietary and open source developers. The following licenses are sorted by the number of conditions, from most gnu agplv3 to none unlicense. Mozilla is the custodian of the mozilla public license mpl, an open sourcefree software license the current version of the license is mpl 2.
Tldrlegal software licenses explained in plain english. If the distribution is a jar or tar file, try to add the license file first in order to place it at the top of the archive. The open software license osl is a software license created by lawrence rosen. Open source license compatibility gplv3 and apache 2.
In this blog we will start off by looking at two of the open source licenses we use at the hyve, apache 2. To be approved by the open source initiative also known as the osi, a license must go through the open. If you have some code you are thinking of releasing under an open source license, and you want a quick overview of the broadstrokes differences between these licenses, you have come to the right place. Discover open source libraries, modules and frameworks you can use in your code. Top 10 apache license questions answered whitesource. All packages produced by the asf are implicitly licensed under the apache license, version 2. Licensed under the open software license version 3. This license has been superseded by the open software license, version 3. Licensor shall mean the owner or entity authorized by the owner that is granting the. All software produced by the apache software foundation or any of its projects or subjects is licensed according to the terms of the documents listed below. At ifross the licenses for free software, open source, open content, open data. Most surveys indicate that the vast majority of open source projects use the mit license, the apache license, and the gpl or their variants.