diff --git a/doc/versions.inc b/doc/versions.inc
index 0752f7b231..00bc03ac1b 100644
--- a/doc/versions.inc
+++ b/doc/versions.inc
@@ -607,6 +607,19 @@ $m443c = array(
     "
 );
 
+$l556 = array(
+    "num"=>"5.5.6",
+    "status"=>"Development version (standard GUI)",
+    "file"=>"boinc_5.5.6_i686-pc-linux-gnu.sh",
+    "date"=>"7 JULY 2006",
+    "type"=>"sea",
+    "features"=>"<ul>
+".$features_55."
+".$changes_55."
+    </ul>
+    "
+);
+
 $l549 = array(
     "num"=>"5.4.9",
     "status"=>"Recommended version",
@@ -703,6 +716,7 @@ $linux = array(
     "dbname" => "i686-pc-linux-gnu",
     "url"=>"linux.php",
     "versions"=>array(
+        $l556,
         $l549,
         $l5213,
         $l443,