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Artistic License

This article is about the software license. For the artistic concept, see Artistic license. For the album by Santi Debriano, see Artistic License (album).
Not to be confused with Free Art License.

The Artistic License is an open-source license used for certain free and open-source software packages, most notably the standard implementation of the Perl programming language and most CPAN modules, which are dual-licensed under the Artistic License and the GNU General Public License (GPL).

Artistic License
AuthorThe Perl Foundation
Latest version2.0
PublisherThe Perl Foundation
Published?
SPDX identifierArtistic-1.0
Artistic-1.0-cl8
Artistic-1.0-Perl
Artistic-2.0
ClArtistic
Debian FSG compatibleYes[1]
FSF approved1.0 No (Yes, for Clarified Artistic License), 2.0 Yes
OSI approvedYes (both)
GPL compatible1.0 No (Yes, for Clarified Artistic License), 2.0 Yes
CopyleftNo[2]
Linking from code with a different licenceYes
Websitewww.perlfoundation.org/artistic-license-20.html Edit this on Wikidata

History

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Artistic License 1.0

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The original Artistic License was written by Larry Wall. The name of the license is a reference to the concept of artistic license.

Whether or not the original Artistic License is a free software license is largely unsettled. The Free Software Foundation explicitly called the original Artistic License a non-free license,[3] criticizing it as being "too vague; some passages are too clever for their own good, and their meaning is not clear".[4] The FSF recommended that the license not be used on its own, but approved the common AL/GPL dual-licensing approach for Perl projects.

In response to this, Bradley Kuhn, who later worked for the Free Software Foundation, made a minimal redraft to clarify the ambiguous passages. This was released as the Clarified Artistic License and was approved by the FSF. It is used by the Paros Proxy, the JavaFBP toolkit and NcFTP.

The terms of the Artistic License 1.0 were at issue in Jacobsen v. Katzer in the initial 2009 ruling by the United States District Court for the Northern District of California declared that FOSS-like licenses could only be enforced through contract law rather than through copyright law, in contexts where contract damages would be difficult to establish.[5] On appeal, a federal appellate court "determined that the terms of the Artistic License are enforceable copyright conditions".[6] The case was remanded to the District Court, which did not apply the superior court's criteria on the grounds that, in the interim, the governing Supreme Court precedent applicable to the case had changed.[7] However, this left undisturbed the finding that a free and open-source license nonetheless has economic value.[8][9] Jacobsen ultimately prevailed in 2010, and the Case established a new standard making terms and conditions under Artistic License 1.0 enforceable through copyright statutes and relevant precedents.[10]

Artistic License 2.0

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In response to the Request for Comments (RFC) process for improving the licensing position for Raku, Kuhn's draft was extensively rewritten by Roberta Cairney and Allison Randal for readability and legal clarity, with input from the Perl community. This resulted in the Artistic License 2.0, which has been approved as both a free software[11] and open source[12] license.

The Artistic license 2.0 is also notable for its excellent license compatibility with other FOSS licenses due to a relicensing clause, a property other licenses like the GPL lack.[13]

You may Distribute your Modified Version as Source (either gratis or for a Distributor Fee, and with or without a Compiled form of the Modified Version) [...] provided that you do at least ONE of the following:

[...] (c) allow anyone who receives a copy of the Modified Version to make the Source form of the Modified Version available to others under

(i) the Original License or

(ii) a license that permits the licensee to freely copy, modify and redistribute the Modified Version using the same licensing terms that apply to the copy that the licensee received, and requires that the Source form of the Modified Version, and of any works derived from it, be made freely available in that license fees are prohibited but Distributor Fees are allowed.

It has been adopted by some of the Raku implementations, the Mojolicious framework and the NPM. It is also used by the SNEeSe emulator, which was formerly licensed under the Clarified Artistic License.

The OSI recommends that all developers and projects licensing their products with the Artistic License adopt Artistic License 2.0.[14]

See also

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References

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  1. ^ "DFSG Licenses – The DFSG and Software Licenses". Debian Wiki. Retrieved November 28, 2010.
  2. ^ "Re: For Approval: Artistic License 2.0: msg#00055". March 14, 2007. Archived from the original on December 28, 2011. Retrieved July 11, 2009.
  3. ^ "Explaining Why We Don't Endorse Other Systems - GNU Project - Free Software Foundation". Free Software Foundation. Retrieved 2013-01-27. ... it permits software released under the original Artistic License to be included, even though that's a nonfree license.
  4. ^ "Various Licenses and Comments about Them - GNU Project - Free Software Foundation (FSF)". Fsf.org. Archived from the original on 24 July 2010. Retrieved 2010-08-07.
  5. ^ New Open Source Legal Decision: Jacobsen & Katzer and How Model Train Software Will Have an Important Effect on Open Source Licensing, Radcliffe, Mark (Law & Life: Silicon Valley) (2007-08-22)
  6. ^ Opinion, Jacobsen v. Katzer Archived 2011-03-04 at the Wayback Machine, United States Court of Appeals for the Federal Circuit (2008-08-13)
  7. ^ United States District Court, N.D. California. (2009-01-05). "Robert JACOBSEN, Plaintiff, v. Matthew KATZER and Kamind Associates, Inc., Defendants". Retrieved 2019-07-11.
  8. ^ Menon, Yamini (Spring 2011). "Jacobsen Revisted: Conditions and the Future of Open-Source Software Licenses" (PDF). Washington Journal of Law, Technology and Arts. 6 (4): 311–357.
  9. ^ WSGR ALERT (2010-02-23). "WSGR ALERT: Settlement Reached in Important Open Source Copyright Infringement Case". Retrieved 2019-07-11.
  10. ^ "McDonagh, L. (2013). Copyright, Contract and FOSS. In: N. Shemtov & I. Walden (Eds.), Free and Open Source Software. (pp. 69-108). OUP Oxford. ISBN 9780199680498" (PDF). Archived (PDF) from the original on 2022-10-09. Retrieved 2019-07-11.
  11. ^ "Various Licenses and Comments about Them - GNU Project - Free Software Foundation (FSF)". Fsf.org. Archived from the original on 24 July 2010. Retrieved 2010-08-07.
  12. ^ "Old Nabble - License Committee Report for May 2007". Nabble.com. Archived from the original on 2007-09-30. Retrieved 2010-03-18.
  13. ^ Interview with Allison Randal about Artistic License 2.0 Archived September 5, 2015, at the Wayback Machine on www.theperlreview.com
  14. ^ "The Artistic License:Licensing". Open Source Initiative. October 31, 2006. Archived from the original on 24 March 2009. Retrieved March 18, 2009.
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