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<PRE class="docheader">
Document number  N4400
Date             2015-04-10
Project          Programming Language C++
Reference        ISO/IEC IS 14882:2011(E)
Reply to         Artur Laksberg
                 Microsoft Corp.
                 arturl@microsoft.com</PRE>
<DIV class="content">
<H1>Concurrency TS Editor's Report, April 2015</H1>
<H3>Overview</H3>
<p>
As of April 10, 2015, the last approved working draft of the Concurrency TS
is <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4107.html">N4107</a>.
</p>
<p>
<a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4399.html">N4399</a>
is the new proposed working draft of the Concurrency TS.
</p>

<H3>History</H3>

<p>
Below is the summary of changes that went into N4399:
</p>
<ul>
  <li>
    <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4123.html">N4123</a>
    proposed improvements to the Concurrency Technical Specification.
    These changes were approved with comments by SG1 and LEWG in Urbana, and 
    incorporated into 
    <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4313.html">N4313</a>.
  </li>
  <li>
    In Cologne, N4313 was reviewed by LWG and approved with suggestions. 
    These suggestions (tracked by 
    <a href="https://github.com/cplusplus/concurrency_ts/issues">
     https://github.com/cplusplus/concurrency_ts/issues</a>) were then incorporated into N4399.
  </li>
  <li>
    Also in Cologne, LWG reviewed <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4204.html">N4204</a>.
    The authors of N4204 incorporated the LWG feedback into N4392. 
    That paper has been submitted to the Lenexa mailing and also merged into N4399.
  </li>
  <li>
    Additionally, N4399 incorporates a portion of 
    <a href="http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2014/n4260.pdf">N4260</a> that 
    was reviewed by SG1 and LWG in Urbana.
  </li>
</ul>
<p>

</p>

The full history of changes can be traced at 
<a href="https://github.com/cplusplus/concurrency_ts">https://github.com/cplusplus/concurrency_ts</a>.
</p>
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