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27 <h1 class="SECT1"><a name="COPYRIGHT" id="COPYRIGHT">7. Privoxy Copyright, License and History</a></h1>
28 <p>Copyright © 2001-2020 by Privoxy Developers <code class="EMAIL"><<a href=
29 "mailto:privoxy-devel@lists.privoxy.org">privoxy-devel@lists.privoxy.org</a>></code></p>
30 <p>Some source code is based on code Copyright © 1997 by Anonymous Coders and Junkbusters, Inc. and licensed
31 under the <i class="CITETITLE">GNU General Public License</i>.</p>
32 <p>Portions of this document are <span class="QUOTE">"borrowed"</span> from the original <span class=
33 "APPLICATION">Junkbuster</span> (tm) FAQ, and modified as appropriate for <span class=
34 "APPLICATION">Privoxy</span>.</p>
36 <h2 class="SECT2"><a name="PRIVOXY-LICENSE" id="PRIVOXY-LICENSE">7.1. License</a></h2>
37 <p><span class="APPLICATION">Privoxy</span> is free software; you can redistribute and/or modify its source code
38 under the terms of the <i class="CITETITLE">GNU General Public License</i> as published by the Free Software
39 Foundation, either version 2 of the license, or (at your option) any later version.</p>
40 <p>The same is true for <span class="APPLICATION">Privoxy</span> binaries unless they are linked with a <a href=
41 "https://tls.mbed.org/" target="_top">mbed TLS</a> version that is licensed under the Apache 2.0 license in which
42 case you can redistribute and/or modify the <span class="APPLICATION">Privoxy</span> binaries under the terms of
43 the <i class="CITETITLE">GNU General Public License</i> as published by the Free Software Foundation, either
44 version 3 of the license, or (at your option) any later version.</p>
45 <p><span class="APPLICATION">Privoxy</span> is distributed in the hope that it will be useful, but WITHOUT ANY
46 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
47 <a href="https://www.privoxy.org/user-manual/copyright.html#LICENSE" target="_top"><i class=
48 "CITETITLE">license</i></a> for details.</p>
51 <h2 class="SECT2"><a name="HISTORY" id="HISTORY">7.2. History</a></h2>
52 <p>A long time ago, there was the <span class="APPLICATION">Internet Junkbuster</span>, by Anonymous Coders and
53 Junkbusters Corporation. This saved many users a lot of pain in the early days of web advertising and user
55 <p>But the web, its protocols and standards, and with it, the techniques for forcing ads on users, give up
56 autonomy over their browsing, and for tracking them, keeps evolving. Unfortunately, the <span class=
57 "APPLICATION">Internet Junkbuster</span> did not. Version 2.0.2, published in 1998, was the last official
58 release, available from Junkbusters Corporation. Fortunately, it had been released under the GNU <a href=
59 "http://www.gnu.org/licenses/old-licenses/gpl-2.0.html" target="_top">GPL</a>, which allowed further development
61 <p>So Stefan Waldherr started maintaining an improved version of the software, to which eventually a number of
62 people contributed patches. It could already replace banners with a transparent image, and had a first version of
63 pop-up killing, but it was still very closely based on the original, with all its limitations, such as the lack
64 of HTTP/1.1 support, flexible per-site configuration, or content modification. The last release from this effort
65 was version 2.0.2-10, published in 2000.</p>
66 <p>Then, some <a href="https://www.privoxy.org/user-manual/copyright.html#AUTHORS" target="_top">developers</a>
67 picked up the thread, and started turning the software inside out, upside down, and then reassembled it, adding
68 many <a href="https://www.privoxy.org/user-manual/introduction.html#FEATURES" target="_top">new features</a>
70 <p>The result of this is <span class="APPLICATION">Privoxy</span>, whose first stable version, 3.0, was released
72 <p>As of 2012 the Junkbusters Corporation's website (http://www.junkbusters.com/) has been shut down, but Privoxy
73 is still actively maintained.</p>
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