Release 2021-09

Change-Id: Ibf4b2f1671f2671042aa9598d738b6e08e082754
Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/content/en_index.php b/content/en_index.php
index 8a02ada..9fa7496 100644
--- a/content/en_index.php
+++ b/content/en_index.php
@@ -16,15 +16,15 @@
 <h1><?php print $pageTitle; ?></h1>
 <h2>Current releases</h2>
 <ul class="fa-ul">
-  <li><a href="http://help.eclipse.org/2021-06/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2021-06 (4.20) Documentation</a> (HTML Help Center)</li>
+  <li><a href="http://help.eclipse.org/2021-09/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2021-09 (4.21) Documentation</a> (HTML Help Center)</li>
 </ul>
 <h2>Older releases</h2>
 <ul class="fa-ul">
+  <li><a href="http://help.eclipse.org/2021-06/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2021-06 (4.20) Documentation</a> (HTML Help Center)</li>
   <li><a href="http://help.eclipse.org/2021-03/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2021-03 (4.19) Documentation</a> (HTML Help Center)</li>
   <li><a href="http://help.eclipse.org/2020-12/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2020-12 (4.18) Documentation</a> (HTML Help Center)</li>
   <li><a href="http://help.eclipse.org/2020-09/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2020-09 (4.17) Documentation</a> (HTML Help Center)</li>
   <li><a href="http://help.eclipse.org/2020-06/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2020-06 (4.16) Documentation</a> (HTML Help Center)</li>
-  <li><a href="http://help.eclipse.org/2020-03/index.jsp"><i class="fa fa-globe"></i> Eclipse IDE 2020-03 (4.15) Documentation</a> (HTML Help Center)</li>
 </ul>
 
 <p>For even older releases (Photon, Oxygen, Neon, etc), please download the corresponding Eclipse SDK or any EPP package and start the Information center locally as described here:</p>