 line gaps).</li>
    <li>Add <a href="manual.html#option_flattenSpans"><code>flattenSpans</code></a> option.</li>
    <li>Many optimizations. Poor responsiveness should be fixed.</li>
    <li>Initialization in hidden state works again.</li>
    <li>Full <a href="https://github.com/codemirror/CodeMirror/compare/v3.0beta1...v3.0beta2">list of patches</a>.</li>
  </ul>

  <p class="rel">19-09-2012: <a href="http://codemirror.net/codemirror-3.0beta1.zip">Version 3.0, beta 1</a>:</p>

  <ul class="rel-note">
  