diff --git a/htdocs/core/lib/admin.lib.php b/htdocs/core/lib/admin.lib.php
index 7823b3534ad..f4a1c9846c8 100644
--- a/htdocs/core/lib/admin.lib.php
+++ b/htdocs/core/lib/admin.lib.php
@@ -1,6 +1,6 @@
 <?php
 /* Copyright (C) 2008-2011  Laurent Destailleur     <eldy@users.sourceforge.net>
- * Copyright (C) 2005-2012  Regis Houssin           <regis.houssin@capnetworks.com>
+ * Copyright (C) 2005-2016  Regis Houssin           <regis.houssin@capnetworks.com>
  * Copyright (C) 2012       J. Fernando Lagrange    <fernando@demo-tic.org>
  * Copyright (C) 2015       Raphaël Doursenaud      <rdoursenaud@gpcsolutions.fr>
  *
@@ -62,18 +62,22 @@ function versioncompare($versionarray1,$versionarray2)
     {
         $operande1=isset($versionarray1[$level])?$versionarray1[$level]:0;
         $operande2=isset($versionarray2[$level])?$versionarray2[$level]:0;
-        if (preg_match('/alpha|dev/i',$operande1)) $operande1=-3;
-        if (preg_match('/alpha|dev/i',$operande2)) $operande2=-3;
-        if (preg_match('/beta/i',$operande1)) $operande1=-2;
-        if (preg_match('/beta/i',$operande2)) $operande2=-2;
-        if (preg_match('/rc/i',$operande1)) $operande1=-1;
-        if (preg_match('/rc/i',$operande2)) $operande2=-1;
+        if (preg_match('/alpha|dev/i',$operande1)) $operande1=-5;
+        if (preg_match('/alpha|dev/i',$operande2)) $operande2=-5;
+        if (preg_match('/beta$/i',$operande1)) $operande1=-4;
+        if (preg_match('/beta$/i',$operande2)) $operande2=-4;
+        if (preg_match('/beta([0-9])*/i',$operande1)) $operande1=-3;
+        if (preg_match('/beta([0-9])*/i',$operande2)) $operande2=-3;
+        if (preg_match('/rc$/i',$operande1)) $operande1=-2;
+        if (preg_match('/rc$/i',$operande2)) $operande2=-2;
+        if (preg_match('/rc([0-9])*/i',$operande1)) $operande1=-1;
+        if (preg_match('/rc([0-9])*/i',$operande2)) $operande2=-1;
         $level++;
-        //print 'level '.$level.' '.$operande1.'-'.$operande2.'<br>';
+        print 'level '.$level.' '.$operande1.'-'.$operande2.'<br>';
         if ($operande1 < $operande2) { $ret = -$level; break; }
         if ($operande1 > $operande2) { $ret = $level; break; }
     }
-    //print join('.',$versionarray1).'('.count($versionarray1).') / '.join('.',$versionarray2).'('.count($versionarray2).') => '.$ret.'<br>'."\n";
+    print join('.',$versionarray1).'('.count($versionarray1).') / '.join('.',$versionarray2).'('.count($versionarray2).') => '.$ret.'<br>'."\n";
     return $ret;
 }
 
@@ -591,7 +595,7 @@ function listOfSessions()
                     $sessValues = file_get_contents($fullpath);	// get raw session data
                     // Example of possible value
                     //$sessValues = 'newtoken|s:32:"1239f7a0c4b899200fe9ca5ea394f307";dol_loginmesg|s:0:"";newtoken|s:32:"1236457104f7ae0f328c2928973f3cb5";dol_loginmesg|s:0:"";token|s:32:"123615ad8d650c5cc4199b9a1a76783f";dol_login|s:5:"admin";dol_authmode|s:8:"dolibarr";dol_tz|s:1:"1";dol_tz_string|s:13:"Europe/Berlin";dol_dst|i:0;dol_dst_observed|s:1:"1";dol_dst_first|s:0:"";dol_dst_second|s:0:"";dol_screenwidth|s:4:"1920";dol_screenheight|s:3:"971";dol_company|s:12:"MyBigCompany";dol_entity|i:1;mainmenu|s:4:"home";leftmenuopened|s:10:"admintools";idmenu|s:0:"";leftmenu|s:10:"admintools";';
-                    
+
                     if (preg_match('/dol_login/i',$sessValues) && // limit to dolibarr session
                     (preg_match('/dol_entity\|i:'.$conf->entity.';/i',$sessValues) || preg_match('/dol_entity\|s:([0-9]+):"'.$conf->entity.'"/i',$sessValues)) && // limit to current entity
                     preg_match('/dol_company\|s:([0-9]+):"('.$conf->global->MAIN_INFO_SOCIETE_NOM.')"/i',$sessValues)) // limit to company name