--- a/es/feed.xml
+++ b/es/feed.xml
@@ -11,17 +11,80 @@
         <ttl>60</ttl>
 
         <item>
-            <title>Maxima 5.18</title>
-            <link>http://maxima.sourceforge.net/download.html</link>
-            <guid isPermaLink="false">2009-04-26</guid>
-            <pubDate>Sat, 25 Apr 2009 15:48:34 -0600</pubDate>
+          <title>Maxima 5.28.0</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2012-08-27</guid>
+          <pubDate>Mon, 27 Aug 2012 12:00:00 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.27.0</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2012-05-05</guid>
+          <pubDate>Sat, 5 May 2012 12:00:00 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.26.0</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2011-12-19</guid>
+          <pubDate>Mon, 19 Dec 2011 12:00:00 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.24.0</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2011-04-17</guid>
+          <pubDate>Tue, 14 Jun 2011 12:07:16 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.23.1</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2011-02-10</guid>
+          <pubDate>Tue, 14 Jun 2011 21:07:16 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.22.1</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2010-08-22</guid>
+          <pubDate>Tue, 14 Jun 2011 21:07:16 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.21.1</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2010-05-02</guid>
+          <pubDate>Tue, 14 Jun 2011 21:07:16 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.20.1</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2009-12-20</guid>
+          <pubDate>Tue, 14 Jun 2011 21:07:16 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.19.2</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2009-08-30</guid>
+          <pubDate>Tue, 14 Jun 2011 21:07:16 UTC</pubDate>
+        </item>
+        
+        <item>
+          <title>Maxima 5.18</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2009-04-26</guid>
+          <pubDate>Sat, 25 Apr 2009 15:48:34 -0600</pubDate>
         </item>
 
         <item>
-            <title>Maxima 5.17.1</title>
-            <link>http://maxima.sourceforge.net/download.html</link>
-            <guid isPermaLink="false">2008-12-26</guid>
-            <pubDate>Fri, 26 Dec 2008 10:13:59 -0600</pubDate>
+          <title>Maxima 5.17.1</title>
+          <link>http://maxima.sourceforge.net/download.html</link>
+          <guid isPermaLink="false">2008-12-26</guid>
+          <pubDate>Fri, 26 Dec 2008 10:13:59 -0600</pubDate>
         </item>
 
         <item>