span></code>
          as needed.
        </li>
<li class="listitem">
          <code class="computeroutput"><span class="identifier">role_type</span></code> is moved from
          <code class="computeroutput"><span class="identifier">websocket</span></code> to <code class="computeroutput"><span class="identifier">beast</span></code>
        </li>
<li class="listitem">
          <code class="computeroutput"><span class="identifier">buffers_range_ref</span></code> is preferred
          to <code class="comp