://codemirror.net/codemirror-2.16.zip">Version 2.16</a>:</p>
  <ul class="rel-note">
    <li>Add <a href="../mode/perl/index.html">Perl</a>, <a href="../mode/rust/index.html">Rust</a>, <a href="../mode/tiddlywiki/index.html">TiddlyWiki</a>, and <a href="../mode/groovy/index.html">Groovy</a> modes.</li>
    <li>Dragging text inside the editor now moves, rather than copies.</li>
    <li>Add a <a href="manual.html#coordsFromIndex"><code>coordsFromIndex</code></a> method.</li>
    <li><strong>API change</strong