target="_top">GitHub
          #3</a>).
        </li></ul></div>
<h3>
<a name="hash.changes.h22"></a>
      <span class="phrase"><a name="hash.changes.boost_1_63_0"></a></span><a class="link" href="changes.html#hash.changes.boost_1_63_0">Boost
      1.63.0</a>
    </h3>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          Fixed some warnings.
        </li>
<li class="listitem">
          Only define hash for <code class="computeroutput"><span cl