diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70e17632..691b1397 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
         <li>Added the <i>{%mail_folder_name%}</i> placeholder to get the mail folder name [<a href="https://github.com/micz/ThunderAI/issues/253">#253</a>].</li>
         <li>Added the <i>{%mail_folder_path%}</i> placeholder to get the mail folder path [<a href="https://github.com/micz/ThunderAI/issues/253">#253</a>].</li>
         <li>Added the <i>{%account_email_address%}</i> placeholder to get the current account mail address [<a href="https://github.com/micz/ThunderAI/issues/272">#272</a>].</li>
+        <li>Improved the handling of null or undefined placeholders [<a href="https://github.com/micz/ThunderAI/issues/288">#288</a>].</li>
         <li>...</li>
       </ul>
 <h2>Version 3.2.3 - 06/03/2025</h2>
diff --git a/options/mzta-release-notes.html b/options/mzta-release-notes.html
index ad5c94c5..c1e7c066 100644
--- a/options/mzta-release-notes.html
+++ b/options/mzta-release-notes.html
@@ -12,6 +12,7 @@
         <li>Added the <i>{%mail_folder_name%}</i> placeholder to get the mail folder name [<a href="https://github.com/micz/ThunderAI/issues/253">#253</a>].</li>
         <li>Added the <i>{%mail_folder_path%}</i> placeholder to get the mail folder path [<a href="https://github.com/micz/ThunderAI/issues/253">#253</a>].</li>
         <li>Added the <i>{%account_email_address%}</i> placeholder to get the current account mail address [<a href="https://github.com/micz/ThunderAI/issues/272">#272</a>].</li>
+        <li>Improved the handling of null or undefined placeholders [<a href="https://github.com/micz/ThunderAI/issues/288">#288</a>].</li>
         <li>...</li>
       </ul>
       <h2>Version 3.2.3 - 06/03/2025</h2>