an class="phrase"><a name="hash.changes.boost_1_56_0"></a></span><a class="link" href="changes.html#hash.changes.boost_1_56_0">Boost
      1.56.0</a>
    </h3>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          Removed some Visual C++ 6 workarounds.
        </li>
<li class="listitem">
          Ongoing work on improving <code class="computeroutput"><span class="identifier">hash_combine</span></code>.
          This changes the combine function