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<div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">(Redirected from <a href="/w/index.php?title=List_of_formerly_free_and_open-source_software&redirect=no" class="mw-redirect" title="List of formerly free and open-source software">List of formerly free and open-source software</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p class="mw-empty-elt"> </p> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output 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print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-More_citations_needed plainlinks metadata ambox ambox-content ambox-Refimprove" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article <b>needs additional citations for <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">verification</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/List_of_formerly_open-source_or_free_software" title="Special:EditPage/List of formerly open-source or free software">improve this article</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and removed.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22List+of+formerly+open-source+or+free+software%22">"List of formerly open-source or free software"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22List+of+formerly+open-source+or+free+software%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22List+of+formerly+open-source+or+free+software%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22List+of+formerly+open-source+or+free+software%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22List+of+formerly+open-source+or+free+software%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22List+of+formerly+open-source+or+free+software%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">October 2021</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1251242444"><table class="plainlinks metadata ambox mbox-small-left ambox-notice" role="presentation" style="width: auto;"><tbody><tr><td class="mbox-image"><span typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/20px-Information_icon4.svg.png" decoding="async" width="20" height="20" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/30px-Information_icon4.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/1/1d/Information_icon4.svg/40px-Information_icon4.svg.png 2x" data-file-width="620" data-file-height="620" /></span></span></td><td class="mbox-text" style="width: auto;"><div class="mbox-text-span">This list is <a href="/wiki/Wikipedia:WikiProject_Lists#Incomplete_lists" title="Wikipedia:WikiProject Lists">incomplete</a>; you can help by <a class="external text" href="https://en.wikipedia.org/w/index.php?title=List_of_formerly_open-source_or_free_software&action=edit">adding missing items</a>. <span class="date-container"><i>(<span class="date">March 2022</span>)</i></span></div></td></tr></tbody></table> <p class="mw-empty-elt"> </p><p>This is a list of notable <a href="/wiki/Computer_software" class="mw-redirect" title="Computer software">software</a> packages which were published as <a href="/wiki/Free_software" title="Free software">free</a> and <a href="/wiki/Open-source_software" title="Open-source software">open-source software</a>, or into the <a href="/wiki/Public_domain" title="Public domain">public domain</a>, but were made <a href="/wiki/Proprietary_software" title="Proprietary software">proprietary software</a>, or otherwise switched to a license (including <a href="/wiki/Source-available_software" title="Source-available software">source-available</a> licenses) that is not considered to be free and open source. </p> <table class="wikitable sortable"> <caption>List of formerly open-source software </caption> <tbody><tr> <th>Title </th> <th>Orig. free date </th> <th>License change date </th> <th>Initial free license </th> <th>Non-free license </th> <th><a href="/wiki/Fork_(software_development)" title="Fork (software development)">Forked</a> replacement </th> <th class="unsortable">Notes </th></tr> <tr> <td><a href="/wiki/Akka_(toolkit)" title="Akka (toolkit)">Akka</a> </td> <td>2009 </td> <td>2022 </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/ArangoDB" title="ArangoDB">ArangoDB</a> </td> <td>2011 </td> <td>2023 </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><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> <td><a href="/wiki/Aseprite" title="Aseprite">Aseprite</a> </td> <td>2001 </td> <td>2016 </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPL-2.0</a> </td> <td>EULA that permits personal use but forbids redistribution<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/w/index.php?title=LibreSprite&action=edit&redlink=1" class="new" title="LibreSprite (page does not exist)">LibreSprite</a> </td></tr> <tr> <td><a href="/wiki/CockroachDB" title="CockroachDB">CockroachDB</a> </td> <td>2015 </td> <td>2019 </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Consul_(software)" title="Consul (software)">Consul</a> </td> <td>2014 </td> <td>2023<sup id="cite_ref-HashiCorpBSL_6-0" class="reference"><a href="#cite_note-HashiCorpBSL-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Mozilla_Public_License" title="Mozilla Public License">MPL-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-HashiCorpBSL_6-1" class="reference"><a href="#cite_note-HashiCorpBSL-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Couchbase_Server" title="Couchbase Server">Couchbase Server</a> </td> <td>2010 </td> <td>2021 </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/w/index.php?title=Couchbase_Mobile&action=edit&redlink=1" class="new" title="Couchbase Mobile (page does not exist)">Couchbase Mobile</a> </td> <td> </td> <td>2022<sup id="cite_ref-cbmob_8-0" class="reference"><a href="#cite_note-cbmob-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-cbmob_8-1" class="reference"><a href="#cite_note-cbmob-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Elasticsearch" title="Elasticsearch">Elasticsearch</a> </td> <td>2010 </td> <td>2021 </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td>"Elastic License" and <a href="/wiki/Server_Side_Public_License" title="Server Side Public License">Server Side Public License</a><sup id="cite_ref-:12_9-0" class="reference"><a href="#cite_note-:12-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/OpenSearch_(software)" title="OpenSearch (software)">OpenSearch</a> </td> <td>Added AGPL v3.0 on 29 August 2024<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Emby" title="Emby">Emby</a> </td> <td>2014 </td> <td>2018 </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPL-2.0</a> </td> <td>Source code closed on December 8, 2018.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Jellyfin" title="Jellyfin">Jellyfin</a> </td></tr> <tr> <td><a href="/wiki/FBReader" title="FBReader">FBReader</a> </td> <td>2013 </td> <td>2015 </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPL-2.0-or-later</a> </td> <td>Apparently the number of devs was limited, and they all agreed to relicense it.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (September 2022)">citation needed</span></a></i>]</sup> </td></tr> <tr> <td><a href="/wiki/LiveCode" title="LiveCode">LiveCode</a> </td> <td>2013 </td> <td>2021<sup id="cite_ref-livecode_14-0" class="reference"><a href="#cite_note-livecode-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/GNU_General_Public_License#Version_3" title="GNU General Public License">GPL-3.0-only</a> </td> <td>proprietary<sup id="cite_ref-livecode_14-1" class="reference"><a href="#cite_note-livecode-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </td> <td> </td> <td>The Livecode company developed it, ran a Kickstarter campaign to GPL it, ran it for eight years open source, and then relicensed it back to proprietary, saying there were few other contributors, most were using the free GPL version, and they couldn't sustain the project.<sup id="cite_ref-livecode_14-2" class="reference"><a href="#cite_note-livecode-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/LiveJournal" title="LiveJournal">LiveJournal</a> </td> <td>1999 </td> <td>2014 </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPL-2.0-or-later</a> </td> <td>The source code was made private in 2014. </td> <td><a href="/wiki/Dreamwidth" title="Dreamwidth">Dreamwidth</a> </td></tr> <tr> <td><a href="/wiki/MetaMask" title="MetaMask">MetaMask</a> </td> <td>2016 </td> <td>2020 </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td>Custom proprietary "non-commercial use only" license.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/MongoDB" title="MongoDB">MongoDB</a> </td> <td>2009 </td> <td>2018 </td> <td><a href="/wiki/GNU_Affero_General_Public_License" title="GNU Affero General Public License">AGPL-3.0-only</a> </td> <td><a href="/wiki/Server_Side_Public_License" title="Server Side Public License">Server Side Public License</a><sup id="cite_ref-:2_16-0" class="reference"><a href="#cite_note-:2-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Nexuiz" title="Nexuiz">Nexuiz</a> </td> <td>2005 </td> <td>2012 </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPL-2.0-or-later</a> </td> <td>Game abandoned in favour of a <a href="/wiki/Nexuiz_(2012_video_game)" title="Nexuiz (2012 video game)">commercial video game of the same name</a>, which licensed the <i>Nexuiz</i> title but is not based on its engine. </td> <td><a href="/wiki/Xonotic" title="Xonotic">Xonotic</a><sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/October_(CMS)" title="October (CMS)">OctoberCMS</a> </td> <td>2014 </td> <td>2021 </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td>Cited the sustainability of its open source model as a factor.<sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </td> <td>Winter<sup id="cite_ref-:0_20-0" class="reference"><a href="#cite_note-:0-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:1_21-0" class="reference"><a href="#cite_note-:1-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/OTRS" title="OTRS">OTRS</a> </td> <td>2001 </td> <td>2020 </td> <td><a href="/wiki/GNU_General_Public_License#Version_3" title="GNU General Public License">GPL-3.0-or-later</a> </td> <td>Support for the Community Edition dropped on December 23, 2020,<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Znuny" class="mw-redirect" title="Znuny">Znuny</a> </td></tr> <tr> <td><a href="/wiki/Paint.NET" title="Paint.NET">Paint.NET</a> </td> <td>2004 </td> <td>2007 </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td>freeware license that prohibits modification or resale<sup id="cite_ref-paintnet_23-0" class="reference"><a href="#cite_note-paintnet-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/PyMOL" title="PyMOL">PyMOL</a> </td> <td>2000 </td> <td>2010 </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT-CMU</a><sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup> </td> <td><sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-26" class="reference"><a href="#cite_note-26"><span class="cite-bracket">[</span>26<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-27" class="reference"><a href="#cite_note-27"><span class="cite-bracket">[</span>27<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-proprietary_28-0" class="reference"><a href="#cite_note-proprietary-28"><span class="cite-bracket">[</span>28<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Reddit" title="Reddit">Reddit</a> </td> <td>2008 </td> <td>2017 </td> <td><a href="/wiki/Common_Public_Attribution_License" title="Common Public Attribution License">CPAL-1.0</a> </td> <td>Source code was made private in 2017, as the internal codebase had already diverged significantly from the public one. </td></tr> <tr> <td><a href="/wiki/Redis" title="Redis">Redis</a> </td> <td>2009 </td> <td>2024 </td> <td><a href="/wiki/BSD_licenses" title="BSD licenses">BSD-3-Clause</a> </td> <td>dual: custom license and <a href="/wiki/Server_Side_Public_License" title="Server Side Public License">Server Side Public License</a><sup id="cite_ref-29" class="reference"><a href="#cite_note-29"><span class="cite-bracket">[</span>29<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Valkey" title="Valkey">Valkey</a><sup id="cite_ref-30" class="reference"><a href="#cite_note-30"><span class="cite-bracket">[</span>30<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Sourcegraph" title="Sourcegraph">Sourcegraph</a> </td> <td>2013 </td> <td>2023 </td> <td><a href="/wiki/Apache_License#Apache_License_2.0" title="Apache License">Apache-2.0</a> </td> <td>proprietary<sup id="cite_ref-31" class="reference"><a href="#cite_note-31"><span class="cite-bracket">[</span>31<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><a href="/wiki/Terraform_(software)" title="Terraform (software)">Terraform</a> </td> <td>2014 </td> <td>2023<sup id="cite_ref-HashiCorpBSL_6-2" class="reference"><a href="#cite_note-HashiCorpBSL-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/Mozilla_Public_License" title="Mozilla Public License">MPL-2.0</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-HashiCorpBSL_6-3" class="reference"><a href="#cite_note-HashiCorpBSL-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/OpenTofu" class="mw-redirect" title="OpenTofu">OpenTofu</a><sup id="cite_ref-32" class="reference"><a href="#cite_note-32"><span class="cite-bracket">[</span>32<span class="cite-bracket">]</span></a></sup> </td> <td>HashiCorp founder considered the move "tragic for open source innovation."<sup id="cite_ref-33" class="reference"><a href="#cite_note-33"><span class="cite-bracket">[</span>33<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td><i><a href="/wiki/Tux_Racer" title="Tux Racer">Tux Racer</a></i> </td> <td>2000 </td> <td>2002 </td> <td><a href="/wiki/GNU_General_Public_License#Version_2" title="GNU General Public License">GPL-2.0-or-later</a> </td> <td>Commercial expansion by original authors, also called <i>Tux Racer</i>. </td> <td><a href="/wiki/Extreme_Tux_Racer" class="mw-redirect" title="Extreme Tux Racer">Extreme Tux Racer</a> (formerly PlanetPenguin Racer) </td></tr> <tr> <td><a href="/wiki/Vagrant_(software)" title="Vagrant (software)">Vagrant</a> </td> <td>2010 </td> <td>2023<sup id="cite_ref-HashiCorpBSL_6-4" class="reference"><a href="#cite_note-HashiCorpBSL-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td> <td><a href="/wiki/MIT_License" title="MIT License">MIT</a> </td> <td><a href="/wiki/Business_Source_License" title="Business Source License">Business Source License</a><sup id="cite_ref-HashiCorpBSL_6-5" class="reference"><a href="#cite_note-HashiCorpBSL-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <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=List_of_formerly_open-source_or_free_software&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/List_of_formerly_proprietary_software" title="List of formerly proprietary software">List of formerly proprietary software</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=List_of_formerly_open-source_or_free_software&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</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 id="CITEREFBonér2022" class="citation web cs1">Bonér, Jonas (2022-09-07). <a rel="nofollow" class="external text" href="https://www.lightbend.com/blog/why-we-are-changing-the-license-for-akka">"Why We Are Changing the License for Akka"</a>. <a href="/wiki/Lightbend" title="Lightbend">Lightbend</a>. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20221003003102/https://www.lightbend.com/blog/why-we-are-changing-the-license-for-akka">Archived</a> from the original on 2022-10-03<span class="reference-accessdate">. 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href="/wiki/Template:FOSS" title="Template:FOSS"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:FOSS" title="Template talk:FOSS"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:FOSS" title="Special:EditPage/Template:FOSS"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Free_and_open-source_software" style="font-size:114%;margin:0 4em"><a href="/wiki/Free_and_open-source_software" title="Free and open-source software">Free and open-source software</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">General</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/Alternative_terms_for_free_software" title="Alternative terms for free software">Alternative terms for free software</a></li> <li><a href="/wiki/Comparison_of_open-source_and_closed-source_software" title="Comparison of open-source and closed-source software">Comparison of open-source and closed-source software</a></li> <li><a href="/wiki/Comparison_of_source-code-hosting_facilities" title="Comparison of source-code-hosting facilities">Comparison of source-code-hosting facilities</a></li> <li><a href="/wiki/Free_software" title="Free software">Free software</a></li> <li><a href="/wiki/List_of_free_software_project_directories" title="List of free software project directories">Free software project directories</a></li> <li><a href="/wiki/Gratis_versus_libre" title="Gratis versus libre">Gratis versus libre</a></li> <li><a href="/wiki/Long-term_support" title="Long-term support">Long-term support</a></li> <li><a href="/wiki/Open-source_software" title="Open-source software">Open-source software</a></li> <li><a href="/wiki/Open-source_software_development" title="Open-source software development">Open-source software development</a></li> <li><a href="/wiki/Outline_of_free_software" title="Outline of free software">Outline</a></li> <li><a href="/wiki/Timeline_of_free_and_open-source_software" title="Timeline of free and open-source software">Timeline</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_free_and_open-source_software_packages" title="List of free and open-source software packages">Software<br />packages</a></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/Comparison_of_free_software_for_audio" title="Comparison of free software for audio">Audio</a></li> <li><a href="/wiki/List_of_open-source_bioinformatics_software" title="List of open-source bioinformatics software">Bioinformatics</a></li> <li><a href="/wiki/List_of_open-source_codecs" title="List of open-source codecs">Codecs</a></li> <li><a href="/wiki/Comparison_of_open-source_configuration_management_software" title="Comparison of open-source configuration management software">Configuration management</a></li> <li><a href="/wiki/Device_driver" title="Device driver">Drivers</a> <ul><li><a href="/wiki/Free_and_open-source_graphics_device_driver" title="Free and open-source graphics device driver">Graphics</a></li> <li><a href="/wiki/Comparison_of_open-source_wireless_drivers" title="Comparison of open-source wireless drivers">Wireless</a></li></ul></li> <li><a href="/wiki/List_of_open-source_health_software" title="List of open-source health software">Health</a></li> <li><a href="/wiki/List_of_open-source_software_for_mathematics" title="List of open-source software for mathematics">Mathematics</a></li> <li><a href="/wiki/List_of_office_suites" title="List of office suites">Office suites</a></li> <li><a href="/wiki/Comparison_of_open-source_operating_systems" title="Comparison of open-source operating systems">Operating systems</a></li> <li><a href="/wiki/List_of_open-source_routing_platforms" title="List of open-source routing platforms">Routing</a></li> <li><a href="/wiki/List_of_free_television_software" title="List of free television software">Television</a></li> <li><a href="/wiki/List_of_open-source_video_games" title="List of open-source video games">Video games</a></li> <li><a href="/wiki/List_of_free_and_open-source_web_applications" title="List of free and open-source web applications">Web applications</a> <ul><li><a href="/wiki/Comparison_of_shopping_cart_software" title="Comparison of shopping cart software">E-commerce</a></li></ul></li> <li><a href="/wiki/List_of_free_and_open-source_Android_applications" title="List of free and open-source Android applications">Android apps</a></li> <li><a href="/wiki/List_of_free_and_open-source_iOS_applications" title="List of free and open-source iOS applications">iOS apps</a></li> <li><a href="/wiki/List_of_commercial_open-source_applications_and_services" title="List of commercial open-source applications and services">Commercial</a></li> <li><a href="/wiki/List_of_formerly_proprietary_software" title="List of formerly proprietary software">Formerly proprietary</a></li> <li><a href="/wiki/List_of_formerly_free_and_open-source_software" class="mw-redirect" title="List of formerly free and open-source software">Formerly open-source</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Community_of_practice" title="Community of practice">Community</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/Free_software_movement" title="Free software movement">Free software movement</a></li> <li><a href="/wiki/History_of_free_and_open-source_software" title="History of free and open-source software">History</a></li> <li><a href="/wiki/Open-source-software_movement" title="Open-source-software movement">Open-source-software movement</a></li> <li><a href="/wiki/List_of_free-software_events" title="List of free-software events">Events</a></li> <li><a href="/wiki/Open-source_software_advocacy" title="Open-source software advocacy">Advocacy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_free_and_open-source_software_organizations" title="List of free and open-source software organizations">Organisations</a></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/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 href="/wiki/Apple_Public_Source_License" title="Apple Public Source License">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 href="/wiki/Comparison_of_free_and_open-source_software_licenses" title="Comparison of free and open-source software licenses">Comparison of licenses</a></li> <li><a href="/wiki/Contributor_License_Agreement" title="Contributor License Agreement">Contributor License Agreement</a></li> <li><a href="/wiki/Copyleft" title="Copyleft">Copyleft</a></li> <li><a href="/wiki/Debian_Free_Software_Guidelines" class="mw-redirect" title="Debian Free Software Guidelines">Debian Free Software Guidelines</a></li> <li><a href="/wiki/Definition_of_Free_Cultural_Works" title="Definition of Free Cultural Works">Definition of Free Cultural Works</a></li> <li><a href="/wiki/Free_license" title="Free license">Free license</a></li> <li><a href="/wiki/The_Free_Software_Definition" title="The Free Software Definition">The Free Software Definition</a></li> <li><a href="/wiki/The_Open_Source_Definition" title="The Open Source Definition">The Open Source Definition</a></li> <li><a href="/wiki/Open-source_license" 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 class="navbox-abovebelow" colspan="2" style="font-weight:bold"><div> <ul><li><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Symbol_portal_class.svg" class="mw-file-description" title="Portal"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/e/e2/Symbol_portal_class.svg/16px-Symbol_portal_class.svg.png" decoding="async" width="16" height="16" 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