WT-12951: add release notes

Author: Romain Mardulyn

ReleaseNotes.html

@@ -26,15 +26,18 @@ <h2>Release 4.11.2 (TBD)</h2>
   Wt 4.11.2 is a patch release that addresses the following issue:
 </p>
 
-<h3>Bug fixes</h3>
-
 <ul>
   <li>
     <a href="https://redmine.emweb.be/issues/12860" target="_blank">Issue #12860</a>:
     fixed a bug where a 
     <a href="classWt_1_1WDialog.html" target="_blank">WDialog</a> would not be centered if 
     <a href="classWt_1_1WDialog.html#a223f8635e38a6e9809b867f247b2185f" target="_blank">WDialog::exec()</a> was called after the <code>WDialog</code> was loaded.
   </li>
+  <li>
+    <a href="https://redmine.emweb.be/issues/12951" target="_blank">Issue #12951</a>:
+    fixed a bug where a layout in a
+    <a href="classWt_1_1WPanel.html" target="_blank">WPanel</a> may not work properly during and after some animations.
+  </li>
 </ul>
 
 <h2>Release 4.11.1 (November 5, 2024)</h2>