The Apple Public Source License is the open source and free software license under which Apple's Darwin operating system was released. A free software and open source license was voluntarily adopted to further involve the community from which much of Darwin originated.
The first version of the Apple Public Source License was approved by the Open Source Initiative (OSI). Version 2.0, released July 29, 2003 conforms to the Free Software Foundation guidelines, and is also approved by the OSI. The Free Software Foundation approved the Apple Public Source License 2.0 as a free software license and say it is acceptable for developers to work on projects that are already covered by this license. They recommend, however, that developers do not release new projects under this license, because the partial copyleft is not compatible with the GNU General Public License and allows linking with files released entirely as proprietary software. The license does, however, require that if any derivatives from the original source are released externally, that the source be made available.
Many software releases from Apple have now been relicensed under the more liberal Apache License, such as the Bonjour Zeroconf stack.
Famous quotes containing the words apple, public, source and/or license:
“The apple doesn’t fall far from the tree.”
—Swedish proverb, trans. by Verne Moberg.
“We have to be despised by somebody whom we regard as above us, or we are not happy; we have to have somebody to worship and envy, or we cannot be content. In America we manifest this in all the ancient and customary ways. In public we scoff at titles and hereditary privilege, but privately we hanker after them, and when we get a chance we buy them for cash and a daughter.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“The child knows only that he engages in play because it is enjoyable. He isn’t aware of his need to play—a need which has its source in the pressure of unsolved problems. Nor does he know that his pleasure in playing comes from a deep sense of well-being that is the direct result of feeling in control of things, in contrast to the rest of his life, which is managed by his parents or other adults.”
—Bruno Bettelheim (20th century)
“Nature is mythical and mystical always, and works with the license and extravagance of genius. She has her luxurious and florid style as well as art.”
—Henry David Thoreau (1817–1862)