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Available in 13 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-13" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">13 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Catalan" lang="ca" hreflang="ca" data-title="Apple Public Source License" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – German" lang="de" hreflang="de" data-title="Apple Public Source License" data-language-autonym="Deutsch" data-language-local-name="German" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Spanish" lang="es" hreflang="es" data-title="Apple Public Source License" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – French" lang="fr" hreflang="fr" data-title="Apple Public Source License" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%95%A0%ED%94%8C_%EA%B3%B5%EA%B3%B5_%EC%86%8C%EC%8A%A4_%EB%9D%BC%EC%9D%B4%EC%84%A0%EC%8A%A4" title="애플 공공 소스 라이선스 – Korean" lang="ko" hreflang="ko" data-title="애플 공공 소스 라이선스" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Italian" lang="it" hreflang="it" data-title="Apple Public Source License" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%86%E0%B4%AA%E0%B5%8D%E0%B4%AA%E0%B4%BF%E0%B5%BE_%E0%B4%B8%E0%B4%BE%E0%B5%BC%E0%B4%B5%E0%B5%8D%E0%B4%B5%E0%B4%9C%E0%B4%A8%E0%B4%BF%E0%B4%95_%E0%B4%85%E0%B4%A8%E0%B5%81%E0%B4%B5%E0%B4%BE%E0%B4%A6%E0%B4%AA%E0%B4%A4%E0%B5%8D%E0%B4%B0%E0%B4%82" title="ആപ്പിൾ സാർവ്വജനിക അനുവാദപത്രം – Malayalam" lang="ml" hreflang="ml" data-title="ആപ്പിൾ സാർവ്വജനിക അനുവാദപത്രം" data-language-autonym="മലയാളം" data-language-local-name="Malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Dutch" lang="nl" hreflang="nl" data-title="Apple Public Source License" data-language-autonym="Nederlands" data-language-local-name="Dutch" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Japanese" lang="ja" hreflang="ja" data-title="Apple Public Source License" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Polish" lang="pl" hreflang="pl" data-title="Apple Public Source License" data-language-autonym="Polski" data-language-local-name="Polish" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Russian" lang="ru" hreflang="ru" data-title="Apple Public Source License" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Apple_Public_Source_License" title="Apple Public Source License – Ukrainian" lang="uk" hreflang="uk" data-title="Apple Public Source License" data-language-autonym="Українська" data-language-local-name="Ukrainian" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E8%8B%B9%E6%9E%9C%E5%85%AC%E5%85%B1%E6%BA%90%E4%BB%A3%E7%A0%81%E8%AE%B8%E5%8F%AF%E8%AF%81" title="苹果公共源代码许可证 – Chinese" lang="zh" hreflang="zh" data-title="苹果公共源代码许可证" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a 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<div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Open source software license</div> <p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title">Apple Public Source License</caption><tbody><tr><th scope="row" class="infobox-label" style="width:45%;">Author</th><td class="infobox-data" style="width:55%;"><a href="/wiki/Apple_Inc." title="Apple Inc.">Apple Inc.</a></td></tr><tr><th scope="row" class="infobox-label" style="width:45%;">Latest version</th><td class="infobox-data" style="width:55%;">2.0</td></tr><tr><th scope="row" class="infobox-label" style="width:45%;">Published</th><td class="infobox-data" style="width:55%;">August 6, 2003</td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/Software_Package_Data_Exchange" title="Software Package Data Exchange">SPDX</a> identifier</th><td class="infobox-data" style="width:55%;">APSL-1.0, APSL-1.1, APSL-1.2, APSL-2.0</td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/Debian_Free_Software_Guidelines" class="mw-redirect" title="Debian Free Software Guidelines">Debian FSG compatible</a></th><td class="infobox-data" style="width:55%;">No<sup id="cite_ref-dfsglist_1-0" class="reference"><a href="#cite_note-dfsglist-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">FSF</a> <a href="/wiki/Comparison_of_free_and_open-source_software_licences#Approvals" class="mw-redirect" title="Comparison of free and open-source software licences">approved</a></th><td class="infobox-data" style="width:55%;">Yes (Version 2.0, not versions 1.0, 1.1 and 1.2)<sup id="cite_ref-fsflist_2-0" class="reference"><a href="#cite_note-fsflist-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/Open_Source_Initiative" title="Open Source Initiative">OSI</a> <a href="/wiki/Comparison_of_free_and_open-source_software_licences#Approvals" class="mw-redirect" title="Comparison of free and open-source software licences">approved</a></th><td class="infobox-data" style="width:55%;">Yes</td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/GPL_compatible" class="mw-redirect" title="GPL compatible">GPL compatible</a></th><td class="infobox-data" style="width:55%;">No<sup id="cite_ref-fsflist_2-1" class="reference"><a href="#cite_note-fsflist-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/Copyleft" title="Copyleft">Copyleft</a></th><td class="infobox-data" style="width:55%;">Partial<sup id="cite_ref-fsfessay_4-0" class="reference"><a href="#cite_note-fsfessay-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="width:45%;"><a href="/wiki/GPL_linking_exception" title="GPL linking exception">Linking from code with a different licence</a></th><td class="infobox-data" style="width:55%;">Yes<sup id="cite_ref-fsfessay_4-1" class="reference"><a href="#cite_note-fsfessay-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label" style="width:45%;">Website</th><td class="infobox-data" style="width:55%;"><a rel="nofollow" class="external free" href="https://opensource.apple.com/apsl/">https://opensource.apple.com/apsl/</a></td></tr></tbody></table> <p>The <b>Apple Public Source License</b> (<b>APSL</b>) is the <a href="/wiki/Open-source_license" title="Open-source license">open-source</a> and <a href="/wiki/Free_software_license" class="mw-redirect" title="Free software license">free software license</a> under which <a href="/wiki/Apple_Inc." title="Apple Inc.">Apple</a>'s <a href="/wiki/Darwin_(operating_system)" title="Darwin (operating system)">Darwin</a> <a href="/wiki/Operating_system" title="Operating system">operating system</a> was released in 2000. A free and open-source software license was voluntarily adopted to further involve the community from which much of Darwin originated. </p><p>The first version of the Apple Public Source License was approved by the <a href="/wiki/Open_Source_Initiative" title="Open Source Initiative">Open Source Initiative</a> (OSI).<sup id="cite_ref-LWN-OSI_5-0" class="reference"><a href="#cite_note-LWN-OSI-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> Version 2.0, released July 29, 2003, is also approved as a free software license by the <a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a> (FSF) which finds it acceptable for developers to work on projects that are already covered by this license. However, the FSF recommends that developers should not release new projects under this license, because the partial <a href="/wiki/Copyleft" title="Copyleft">copyleft</a> is not compatible with the <a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GNU General Public License</a> and allows linking with files released entirely as <a href="/wiki/Proprietary_software" title="Proprietary software">proprietary software</a>.<sup id="cite_ref-fsfessay_4-2" class="reference"><a href="#cite_note-fsfessay-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> The license does require that if any derivatives of the original source are released externally, their source should be made available; the Free Software Foundation compares this requirement to a similar one in its own <a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">GNU Affero General Public License</a>.<sup id="cite_ref-fsfessay_4-3" class="reference"><a href="#cite_note-fsfessay-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>Many software releases from Apple have now been <a href="/wiki/Software_relicensing" title="Software relicensing">relicensed</a> under the more liberal <a href="/wiki/Apache_License" title="Apache License">Apache License</a>, such as the <a href="/wiki/Bonjour_(software)" title="Bonjour (software)">Bonjour</a> <a href="/wiki/Zeroconf" class="mw-redirect" title="Zeroconf">Zeroconf</a> stack. However, most OS component source code remains under APSL. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Apple_Public_Source_License&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid var(--border-color-base,#a2a9b1);padding:0.1em;background:var(--background-color-neutral-subtle,#f8f9fa)}.mw-parser-output .portalbox-entry{display:table-row;font-size:85%;line-height:110%;height:1.9em;font-style:italic;font-weight:bold}.mw-parser-output .portalbox-image{display:table-cell;padding:0.2em;vertical-align:middle;text-align:center}.mw-parser-output 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class="mw-references-wrap"><ol class="references"> <li id="cite_note-dfsglist-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-dfsglist_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://wiki.debian.org/DFSGLicenses#Apple_Public_Source_License_.28APSL.29">"Apple Public Source License (APSL)"</a>. <i>The Big DFSG-compatible Licenses</i>. <a href="/wiki/Debian_Project" class="mw-redirect" title="Debian Project">Debian Project</a><span class="reference-accessdate">. Retrieved <span class="nowrap">January 27,</span> 2017</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=The+Big+DFSG-compatible+Licenses&rft.atitle=Apple+Public+Source+License+%28APSL%29&rft_id=https%3A%2F%2Fwiki.debian.org%2FDFSGLicenses%23Apple_Public_Source_License_.28APSL.29&rfr_id=info%3Asid%2Fen.wikipedia.org%3AApple+Public+Source+License" class="Z3988"></span></span> </li> <li id="cite_note-fsflist-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-fsflist_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-fsflist_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.gnu.org/licenses/license-list.html#apsl2">"Apple Public Source License (APSL), version 2.x"</a>. <i>Various Licenses and Comments about Them</i>. <a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20090716201618/http://www.gnu.org/licenses/license-list.html">Archived</a> from the original on July 16, 2009<span class="reference-accessdate">. Retrieved <span class="nowrap">July 6,</span> 2009</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Various+Licenses+and+Comments+about+Them&rft.atitle=Apple+Public+Source+License+%28APSL%29%2C+version+2.x&rft_id=https%3A%2F%2Fwww.gnu.org%2Flicenses%2Flicense-list.html%23apsl2&rfr_id=info%3Asid%2Fen.wikipedia.org%3AApple+Public+Source+License" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.gnu.org/licenses/license-list.html#apsl1">"Various Licenses and Comments about Them - GNU Project - Free Software Foundation"</a>. Gnu.org. September 3, 1999<span class="reference-accessdate">. Retrieved <span class="nowrap">May 13,</span> 2022</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Various+Licenses+and+Comments+about+Them+-+GNU+Project+-+Free+Software+Foundation&rft.pub=Gnu.org&rft.date=1999-09-03&rft_id=https%3A%2F%2Fwww.gnu.org%2Flicenses%2Flicense-list.html%23apsl1&rfr_id=info%3Asid%2Fen.wikipedia.org%3AApple+Public+Source+License" class="Z3988"></span></span> </li> <li id="cite_note-fsfessay-4"><span class="mw-cite-backlink">^ <a href="#cite_ref-fsfessay_4-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-fsfessay_4-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-fsfessay_4-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-fsfessay_4-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.fsf.org/licensing/essays/apsl.html">FSF website</a></span> </li> <li id="cite_note-LWN-OSI-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-LWN-OSI_5-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRaymond" class="citation web cs1">Raymond, Eric. <a rel="nofollow" class="external text" href="https://lwn.net/1999/0318/a/raymond.html">"OSI clarifies the status of the APSL"</a>. <i>Linux Weekly News</i><span class="reference-accessdate">. Retrieved <span class="nowrap">February 14,</span> 2013</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Linux+Weekly+News&rft.atitle=OSI+clarifies+the+status+of+the+APSL&rft.aulast=Raymond&rft.aufirst=Eric&rft_id=https%3A%2F%2Flwn.net%2F1999%2F0318%2Fa%2Fraymond.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AApple+Public+Source+License" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Apple_Public_Source_License&action=edit&section=3" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="https://opensource.apple.com/apsl">Text of the Apple Public Source License</a></li> <li><a rel="nofollow" class="external text" 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0.25em"> <ul><li><a href="/wiki/Free_Software_Movement_of_India" title="Free Software Movement of India">Free Software Movement of India</a></li> <li><a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free-software_license" title="Free-software license">Licenses</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Academic_Free_License" title="Academic Free License">AFL</a></li> <li><a href="/wiki/Apache_License" title="Apache License">Apache</a></li> <li><a class="mw-selflink selflink">APSL</a></li> <li><a href="/wiki/Artistic_License" title="Artistic License">Artistic</a></li> <li><a href="/wiki/Beerware" title="Beerware">Beerware</a></li> <li><a href="/wiki/BSD_licenses" title="BSD licenses">BSD</a></li> <li><a href="/wiki/Creative_Commons_license" title="Creative Commons license">Creative Commons</a></li> <li><a href="/wiki/Common_Development_and_Distribution_License" title="Common Development and Distribution License">CDDL</a></li> <li><a href="/wiki/Eclipse_Public_License" title="Eclipse Public License">EPL</a></li> <li><a href="/wiki/Free_Software_Foundation" title="Free Software Foundation">Free Software Foundation</a> <ul><li><a href="/wiki/GNU_General_Public_License" title="GNU General Public License">GNU GPL</a></li> <li><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">GNU AGPL</a></li> <li><a href="/wiki/GNU_Lesser_General_Public_License" title="GNU Lesser General Public License">GNU LGPL</a></li></ul></li> <li><a href="/wiki/ISC_license" title="ISC license">ISC</a></li> <li><a href="/wiki/MIT_License" title="MIT License">MIT</a></li> <li><a href="/wiki/Mozilla_Public_License" title="Mozilla Public License">MPL</a></li> <li><a href="/wiki/Python_License" title="Python License">Python</a></li> <li><a href="/wiki/Python_Software_Foundation_License" title="Python Software Foundation License">Python Software Foundation License</a></li> <li><a href="/wiki/Shared_Source_Initiative" title="Shared Source Initiative">Shared Source Initiative</a></li> <li><a href="/wiki/Sleepycat_License" class="mw-redirect" title="Sleepycat License">Sleepycat</a></li> <li><a href="/wiki/Unlicense" title="Unlicense">Unlicense</a></li> <li><a href="/wiki/WTFPL" title="WTFPL">WTFPL</a></li> <li><a href="/wiki/Zlib_License" title="Zlib License">zlib</a></li></ul> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Types_and_standards" scope="row" class="navbox-group" style="width:1%">Types and<br /> standards</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a 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title="Open-source license">Open-source license</a></li> <li><a href="/wiki/Permissive_software_license" title="Permissive software license">Permissive software license</a></li> <li><a href="/wiki/Public_domain" title="Public domain">Public domain</a></li></ul> </div></td></tr></tbody></table><div> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Challenges</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_rights_management" title="Digital rights management">Digital rights management</a></li> <li><a href="/wiki/License_proliferation" title="License proliferation">License proliferation</a></li> <li><a href="/wiki/Mozilla_software_rebranded_by_Debian" class="mw-redirect" title="Mozilla software rebranded by Debian">Mozilla software rebranding</a></li> <li><a href="/wiki/Proprietary_device_driver" class="mw-redirect" title="Proprietary device driver">Proprietary device drivers</a></li> <li><a href="/wiki/Proprietary_firmware" title="Proprietary firmware">Proprietary firmware</a></li> <li><a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary software</a></li> <li><a href="/wiki/SCO%E2%80%93Linux_disputes" title="SCO–Linux disputes">SCO/Linux controversies</a></li> <li><a href="/wiki/Software_patents_and_free_software" title="Software patents and free software">Software patents</a></li> <li><a href="/wiki/Open-source_software_security" title="Open-source software security">Software security</a></li> <li><a href="/wiki/Tivoization" title="Tivoization">Tivoization</a></li> <li><a href="/wiki/Trusted_Computing" title="Trusted Computing">Trusted Computing</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related <br />topics</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Fork_(software_development)" title="Fork (software development)">Forking</a></li> <li><i><a href="/wiki/GNU_Manifesto" title="GNU Manifesto">GNU Manifesto</a></i></li> <li><a href="/wiki/Microsoft_Open_Specification_Promise" title="Microsoft Open Specification Promise">Microsoft Open Specification Promise</a></li> <li><a href="/wiki/Open-core_model" title="Open-core model">Open-core model</a></li> <li><a href="/wiki/Open-source_hardware" title="Open-source hardware">Open-source hardware</a></li> <li><a href="/wiki/Shared_Source_Initiative" title="Shared Source Initiative">Shared Source Initiative</a></li> <li><a href="/wiki/Source-available_software" title="Source-available software">Source-available software</a></li> <li><i><a href="/wiki/The_Cathedral_and_the_Bazaar" title="The Cathedral and the Bazaar">The Cathedral and the Bazaar</a></i></li> <li><i><a href="/wiki/Revolution_OS" title="Revolution OS">Revolution OS</a></i></li></ul> </div></td></tr><tr><td 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