fer
        </li>
<li class="listitem">
          Bug in point_on_surface() for CCW Polygons (extreme_points()) and numerical
          issue (thanks to Matt Amos)
        </li>
<li class="listitem">
          Bug in disjoint() for A/A fixed by replacement of point_on_surface() with
          point_on_border() (thanks to Matt Amos)
        </li>
<li class="listitem">
          The result of convex_hull(), duplicated Point in open output, too small
          number of Points for 1- and 2-Point input
        