The Historical Permission Notice and Disclaimer is an open source license, approved by the Open Source Initiative (OSI). It is unique among the OSI's licenses because of the choices it allows in its construction; it lets the licensor pick anywhere from 0-2 warranty disclaimers, whether they want to prohibit your publicity of the software derivatives (like in the BSD License), and other spelling and grammar options. Besides this, the license can be almost functionally identical to the new 3-clause BSD License (if the option for the no-promotion clause is exercised), or the MIT License (if the option for the no-promotion clause is not exercised).
Variants of this license are in use primarily in older software, including the original BSD kernel, developed by IBM, Intel and others. Today, it is most popular to choose either the new 3-clause BSD License or the MIT License to meet the licensing needs of the developer.
This is the only OSI-certified license (excluding the public domain) that can lack a disclaimer of warranty. The Free Software Foundation has not yet recognized this license as a free software license in the general case, but has done so for certain variations, such as that used for versions of Python before 1.6b.
Famous quotes containing the words historical, permission and/or notice:
“The past itself, as historical change continues to accelerate, has become the most surreal of subjects—making it possible ... to see a new beauty in what is vanishing.”
—Susan Sontag (b. 1933)
“Who is this Renaissance? Where did he come from? Who gave him permission to cram the Republic with his execrable daubs?”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)
“Everybody has that thing where they need to look one way but they come out looking another way and that’s what people observe. You see someone on the street and essentially what you notice about them is the flaw. It’s just extraordinary that we should have been given these peculiarities.... Something is ironic in the world and it has to do with the fact that what you intend never comes out like you intend it.”
—Diane Arbus (1923–1971)