Add news message for StatET 4.2.3 release

Signed-off-by: Stephan Wahlbrink <sw@wahlbrink.eu>
diff --git a/news/index.html b/news/index.html
index 299072b..c225523 100644
--- a/news/index.html
+++ b/news/index.html
@@ -17,6 +17,31 @@
 >mailing list</a> to keep up to date!</p>
 
 <div class="message">
+<p class="message-info" id="statet-4.2.3-r">
+	<a href="https://www.eclipse.org/lists/statet-users/msg00111.html" class="message-stamp">2021-02-11
+			| &#x1F4E7;[statet-users]:</a>
+	<a href="https://accounts.eclipse.org/users/stwahlbrin" class="message-author">(sw)</a>
+</p>
+<div class="message-content">
+<h3>[Ann] StatET 4.2.3 Release</h3>
+
+<p>I am pleased to announce <a href="https://projects.eclipse.org/projects/science.statet/releases/4.2.3"
+title="StatET 4.2.3 - Release Record">StatET 4.2.3</a>, the Eclipse-based IDE for the R language.</p>
+
+<p>This is a maintenance release of <a href="#statet-4.2.0-r">StatET 4.2</a> providing bug fixes and
+minor enhancements.</p>
+
+<h5>Download / Installation</h5>
+
+<p>To install the new version, you can use the following update site:<br/>
+<code>https://download.eclipse.org/statet/releases/4.2/E202006</code><br/>
+For other download options, please check the <a href="/statet/downloads/4.2.php" title="StatET 4.2 - Downloads"
+>download page</a>.</p>
+
+<p>Thanks to everyone who has contributed to this release.</p>
+</div></div>
+
+<div class="message">
 <p class="message-info" id="statet-4.2.2-r">
 	<a href="https://www.eclipse.org/lists/statet-users/msg00097.html" class="message-stamp">2020-12-31
 			| &#x1F4E7;[statet-users]:</a>