chore: Update release notes for 8.14.4

all/src/main/templates/release-notes.html

@@ -83,10 +83,14 @@ <h2 id="enhancements">Enhancements in Vaadin Framework @version-minor@</h2>
             enhancements. Below is a list of the most notable changes:</p>
 
         <ul>
-		<li>Reworked and cleaned up client-side TabSheet and Accordion</li>
-       </ul>
-
-        </p>
+			<li>Updated POMs to use HTTPS URLs instead of HTTP</li>
+			<li>Updated Atmosphere version for security</li>
+			<li>Updated commons-io, commons-cli, commons-codec and hsqldb to latest stable versions</li>
+			<li>Updated animal sniffer for build stability</li>
+			<li>Introduced Maven Flatten plugin for cleaner shipped POMs</li>
+			<li>Added a development-time warning message to the logs to notify users that this is an
+			    unmaintained release.</li>
+        </ul>
 
         <p>
             For enhancements introduced in Vaadin Framework 8.13, see the <a