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<p>The Apache Software Foundation uses various licenses to <a href="#distributions">distribute
software and documentation</a>, to accept regular
<a href="#clas">contributions from individuals and corporations</a>, and to accept
larger <a href="#grants">grants of existing software products</a>.</p>
<p>These licenses help us achieve our goal of providing reliable and
long-lived software products through collaborative open source software
development. In all cases, contributors retain full rights to use their
original contributions for any other purpose outside of Apache while
providing the ASF and its projects the right to distribute and build upon
their work within Apache.</p>
<h1 id="distributions">Licensing of Distributions<a class="headerlink" href="#distributions" title="Permanent link">&para;</a></h1>
<p>All software produced by The Apache Software Foundation or any of its
projects or subjects is licensed according to the terms of the documents
listed below.</p>
<h2 id="2.0">Apache License, Version 2.0 (current)<a class="headerlink" href="#2.0" title="Permanent link">&para;</a></h2>
<p><a href="LICENSE-2.0">http://www.apache.org/licenses/LICENSE-2.0</a> (
<a href="LICENSE-2.0.txt">TXT</a> or <a href="LICENSE-2.0.html">HTML</a> )</p>
<p>The 2.0 version of the Apache License was approved by the ASF in 2004. The
goals of this license revision have been to reduce the number of frequently
asked questions, to allow the license to be reusable without modification
by any project (including non-ASF projects), to allow the license to be
included by reference instead of listed in every file, to clarify the
license on submission of contributions, to require a patent license on
contributions that necessarily infringe the contributor's own patents, and
to move comments regarding Apache and other inherited attribution notices
to a location outside the license terms (the <a href="example-NOTICE.txt">NOTICE
file</a> ).</p>
<p>The result is a license that is supposed to be compatible with other open
source licenses, while remaining true to the original goals of the Apache
Group and supportive of collaborative development across both nonprofit and
commercial organizations. The Apache Software Foundation is still trying to
determine if this version of the Apache License is <a href="GPL-compatibility.html">compatible with the
GPL</a>.</p>
<p>All packages produced by the ASF are implicitly licensed under the Apache
License, Version 2.0, unless otherwise explicitly stated. More developer
documentation on how to apply the Apache License to your work can be found
in * <a href="../dev/apply-license.html">Applying the Apache License, Version 2.0</a>
*.</p>
<h2 id="1.1">Apache License, Version 1.1 (historic)<a class="headerlink" href="#1.1" title="Permanent link">&para;</a></h2>
<p><a href="LICENSE-1.1">http://www.apache.org/licenses/LICENSE-1.1</a> </p>
<p>The 1.1 version of the Apache License was approved by the ASF in 2000. The
primary change from the 1.0 license is in the 'advertising clause' (section
3 of the 1.0 license); derived products are no longer required to include
attribution in their advertising materials, only in their documentation.</p>
<p>Individual packages licensed under the 1.1 version may have used different
wording due to varying requirements for attribution or mark identification,
but the binding terms were all the same.</p>
<h2 id="1.0">Apache License, Version 1.0 (historic)<a class="headerlink" href="#1.0" title="Permanent link">&para;</a></h2>
<p><a href="LICENSE-1.0">http://www.apache.org/licenses/LICENSE-1.0</a> </p>
<p>This is the original Apache License which applies only to older versions of
Apache packages (such as version 1.2 of the Web server).</p>
<h1 id="clas">Contributor License Agreements<a class="headerlink" href="#clas" title="Permanent link">&para;</a></h1>
<p>The ASF desires that all contributors of ideas, code, or documentation to
the Apache projects complete, sign, and submit (via postal mail, fax or
email) an <a href="icla.txt">Individual Contributor License Agreement</a> (1) (CLA) [ <a href="icla.pdf">PDF
form</a> ]. The purpose of this agreement is to clearly define the
terms under which intellectual property has been contributed to the ASF and
thereby allow us to defend the project should there be a legal dispute
regarding the software at some future time. A signed CLA is required to be
on file before an individual is given commit rights to an ASF project.</p>
<p>For a corporation that has assigned employees to work on an Apache project,
a <a href="cla-corporate.txt">Corporate CLA</a> (CCLA) is available for contributing
intellectual property via the corporation, that may have been assigned as
part of an employment agreement. Note that a Corporate CLA does not remove
the need for every developer to sign their own CLA as an individual, to
cover any of their contributions which are not owned by the corporation
signing the CCLA.</p>
<p>The ICLA is not tied to any employer you may have, so it is recommended to
use one's personal email address in the contact details, rather than an @work
address.</p>
<p>Your Full name will be published unless you provide an alternative Public name.
For example if your full name is Andrew Bernard Charles Dickens, but you wish
to be known as Andrew Dickens, please enter the latter as your Public name.</p>
<p>The email address and other contact details are not published.</p>
<p>(1) Please use overwrite mode when typing in the underlined fields.
Otherwise the fields will wrap, making the result harder to read.</p>
<h1 id="grants">Software Grants<a class="headerlink" href="#grants" title="Permanent link">&para;</a></h1>
<p>When an individual or corporation decides to donate a body of existing
software or documentation to one of the Apache projects, they need to
execute a formal <a href="software-grant.txt">Software Grant Agreement</a> (SGA) with
the ASF. Typically, this is done after negotiating approval with the ASF
<a href="http://incubator.apache.org/">Incubator</a> or one of the PMCs, since the ASF
will not accept software unless there is a viable community available to
support a collaborative project.</p>
<h1 id="submitting">Submitting License Agreements and Grants<a class="headerlink" href="#submitting" title="Permanent link">&para;</a></h1>
<p>Documents may be submitted by traditional postal mail, fax, or email.</p>
<p>If submitting by post, please print, sign, and mail the document to
The Apache Software Foundation, Dept. 9660, Los Angeles, CA 90084-9660, U.S.A.
Please make a copy and keep for your own records.</p>
<p>If submitting by fax, please print, sign, and fax all pages of the document 
to +1-919-573-9199. Please send documents right-side-up, first page first;
and send only one document per fax.</p>
<p>If submitting by email, please print, sign, scan all pages into a single pdf file, 
and email the .pdf as an attachment to secretary@apache.org. 
Please send only one document per email.</p>
<p>If you prefer to sign electronically, please edit the .txt or .pdf file and sign the
file by preparing a detached PGP signature. For example,</p>
<blockquote>
<p>gpg --armor --detach-sign icla.pdf</p>
</blockquote>
<p>The above will create a file icla.pdf.asc. Send both the file and signature
as attachments in an email to secretary@apache.org. Please send only one 
document per email. Please do not submit your public key to Apache.</p>
<p>The files typically are named
icla.txt and icla.txt.asc (or icla.pdf and icla.pdf.asc) for individual agreements;
ccla.txt and ccla.txt.asc (or ccla.pdf and ccla.pdf.asc) for corporate agreements;
software-grant.txt and software-grant.txt.asc for grants. </p>
<p>Please upload your public key to pgpkeys.mit.edu. </p>
<h1 id="crypto">Export restrictions<a class="headerlink" href="#crypto" title="Permanent link">&para;</a></h1>
<p>For export restriction information, please consult our <a href="/licenses/exports/">ASF Export
Classifications</a> page.</p>
<h1 id="trademarks">Trademark and Logo Usage<a class="headerlink" href="#trademarks" title="Permanent link">&para;</a></h1>
<p>For ASF trademark and logo usage information, please consult our <a href="/foundation/marks/">ASF
Trademark Use Policy</a> page.</p>
<h1 id="questions">Questions?<a class="headerlink" href="#questions" title="Permanent link">&para;</a></h1>
<p>For answers to frequently asked licensing questions, please consult our 
<a href="/foundation/license-faq.html">Licensing Frequently Asked Questions</a> page.</p></div>

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