diff --git a/documentation/RELEASE_NOTES.html b/documentation/RELEASE_NOTES.html
index 279ccf5d4..c33367b49 100644
--- a/documentation/RELEASE_NOTES.html
+++ b/documentation/RELEASE_NOTES.html
@@ -39,6 +39,10 @@ file. The <tt>#include</tt> statements that might need to be added are:</p>
   <li>#include "epicsTypes.h"</li>
 </ul>
 
+<h4>Long-deprecated errSymFind() function deleted</h4>
+
+<p>This functionality was replaced by errSymLookup() many releases ago.</p>
+
 <h4>Perl CA library shutdown</h4>
 
 <p>The Perl CA library has been modified to properly flush the Channel Access