Historical Permission Notice and Disclaimer
| Author | Bruce Dodson[1] |
|---|---|
| Latest version | n/a |
| Publisher | Dr. Bruce Dodson |
| Published | 29 November 2002 |
| FSF approved | Yes[2] |
| OSI approved | Yes |
| GPL compatible | Yes[2] |
| Copyleft | No |
| Linking from code with a different license | Yes |
| Website | http://opensource.org/licenses/HPND |
| Deprecated | Yes[3] |
The Historical Permission Notice and Disclaimer (HPND)[3] is an open source license, approved by the Open Source Initiative (OSI) and verified as GPL-compatible by the Free Software Foundation.[2] 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 the author's name from being used in publicity or advertising surrounding a distribution (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. Today,[when?] 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.
