ements doc
        </li>
</ul></div>
<p>
      <span class="bold"><strong>Breaking Changes</strong></span>
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          Remove deprecated <code class="computeroutput"><span class="identifier">serializer</span><span class="special">::</span><span class="identifier">reader_impl</span></code>
        </li>
<li class="listitem">
          Remove deprecated <a class="link" href="concepts/Body.html" tit