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:
“After so many historical illustrations of the evil effects of abandoning the policy of protection for that of a revenue tariff, we are again confronted by the suggestion that the principle of protection shall be eliminated from our tariff legislation. Have we not had enough of such experiments?”
—Benjamin Harrison (1833–1901)
“Misfortune is never invited. And it comes and sits at the table without permission and it eats, leaving nothing but bones.”
—Jacques Roumain (1907–1945)
“Theoretically, we know that the world turns, but in fact we do not notice it, the earth on which we walk does not seem to move and we live on in peace. This is how it is concerning Time in our lives. And to render its passing perceptible, novelists must... have their readers cross ten, twenty, thirty years in two minutes.”
—Marcel Proust (1871–1922)