diff --git a/toroid.html b/toroid.html
index 455f3a9..9622468 100644
--- a/toroid.html
+++ b/toroid.html
@@ -129,6 +129,8 @@
             </ul>
             <br>
             <b><u>Change history:</u></b><br>
+            <b>[2-Nov-21]</b> <br>
+            * Release 0.9a - Major code refactor to support Powdered Iron toroids.<br>
             <b>[26-Oct-21]</b> <br>
             * Increased resolution of the f-slider, making it smoothly regenerate the dataset.<br>
             <b>[24-Oct-21]</b> <br>