diff --git a/CHANGELOG.md b/CHANGELOG.md
index 23be88e3..6949f05b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
         <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><i>[All APIs]</i> Added a context menu to automatically add tags and run the spam filter on selected messages. [<a href="https://github.com/micz/ThunderAI/issues/262">#262</a>].</li>
         <li><i>[All APIs]</i> It's now possibile to define a timezone in the calendar event settings page [<a href="https://github.com/micz/ThunderAI/issues/250">#250</a>].</li>
+        <li><i>[All APIs]</i> It's now possibile to add the attendees in the calendar event, be sure to update the prompt in the settings [<a href="https://github.com/micz/ThunderAI/issues/258">#258</a>].</li>
         <li>The button icon now shows a loading indicator when ThunderAI is performing an operation [<a href="https://github.com/micz/ThunderAI/issues/295">#295</a>].</li>
         <li>Improved the handling of null or undefined placeholders [<a href="https://github.com/micz/ThunderAI/issues/288">#288</a>].</li>
         <li>Czech (cs) translation added, thanks to <a href="https://hosted.weblate.org/user/jaroush/">Jaroslav Staněk</a> and <a href="https://hosted.weblate.org/user/Fjuro/">Fjuro</a>.</li>
diff --git a/options/mzta-release-notes.html b/options/mzta-release-notes.html
index d7aaeb8e..293de003 100644
--- a/options/mzta-release-notes.html
+++ b/options/mzta-release-notes.html
@@ -14,6 +14,7 @@
         <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><i>[All APIs]</i> Added a context menu to automatically add tags and run the spam filter on selected messages. [<a href="https://github.com/micz/ThunderAI/issues/262">#262</a>].</li>
         <li><i>[All APIs]</i> It's now possibile to define a timezone in the calendar event settings page [<a href="https://github.com/micz/ThunderAI/issues/250">#250</a>].</li>
+        <li><i>[All APIs]</i> It's now possibile to add the attendees in the calendar event, be sure to update the prompt in the settings [<a href="https://github.com/micz/ThunderAI/issues/258">#258</a>].</li>
         <li>The button icon now shows a loading indicator when ThunderAI is performing an operation [<a href="https://github.com/micz/ThunderAI/issues/295">#295</a>].</li>
         <li>Improved the handling of null or undefined placeholders [<a href="https://github.com/micz/ThunderAI/issues/288">#288</a>].</li>
         <li>Czech (cs) translation added, thanks to <a href="https://hosted.weblate.org/user/jaroush/">Jaroslav Staněk</a> and <a href="https://hosted.weblate.org/user/Fjuro/">Fjuro</a>.</li>