+ <ul>
+ <li><span style="font-weight: bold;">September 2011.</span> The
+denomination "lambda-delta" changes to "lambda_delta".
+ <ul>
+ <li>The character "-" is reserved in λδ textual syntax
+(recognized by <span style="font-style: italic;">Helena 0.8.1</span>).
+ </li>
+ <li>Eventually, the occurrences of the character "-" will
+be replaced by "_" in all λδ-related identifiers.</li>
+ <li>In particular, this refactoring involves file names and
+path names.</li>
+ <li>The permanent λδ URL is sheduled to become <span
+ style="font-style: italic;">http://lambda_delta.info</span> on
+December 2012.<br>
+ </li>
+ </ul>
+ </li>
+ </ul>
+ <ul>
+ <li><span style="font-weight: bold;">April 2011.</span> The
+specification of λδ version 2 and related topics is restarted in <a
+ href="http://matita.cs.unibo.it/">Matita 0.5</a>.
+ <ul>
+ <li><a href="apps_2.html">Here</a> is a page about the
+topics related to the specification (Applications).</li>
+ <li><a href="basic_2.html">Here</a> is a page about the
+specification (Core). </li>
+ </ul>
+ </li>
+ </ul>