     1.56</a>
    </h4>
<p>
      <span class="bold"><strong>Additional functionality</strong></span>
    </p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
          New algorithm buffer for inflating/deflating geometries (buffer itself
          already existed but that was only to enlarge a box)
        </li>
<li class="listitem">
          New algorithm remove_spikes, algorithm to remove spikes from a ring, polygon
          or multi_polygon
  