pecial">]</span>
<span class="special">[</span><span class="identifier">symbols</span><span class="special">]</span>   <span class="special">[</span><span class="identifier">tree</span><span class="special">]</span>          <span class="special">[</span><span class="identifier">utility</span><span class="special">]</span>
</pre>
<p>
        These include some old v1.8 directories that are now deprecated. These are:
        actor, attribute, core, debug, dynamic, error_handling, iterator, meta, phoenix,
   