diff --git a/build/exe/doliwamp/doliwamp.iss b/build/exe/doliwamp/doliwamp.iss
index 7d0ab8e844e..3ce317da181 100644
--- a/build/exe/doliwamp/doliwamp.iss
+++ b/build/exe/doliwamp/doliwamp.iss
@@ -17,9 +17,9 @@
 ; ----- Change this -----
 AppName=DoliWamp
 ; DoliWamp-x.x or DoliWamp-x.x-dev or DoliWamp-x.x-beta
-AppVerName=DoliWamp-2.5.1
+AppVerName=DoliWamp-2.6-beta
 ; DoliWamp-x.x or DoliWamp-x.x-dev or DoliWamp-x.x-beta
-OutputBaseFilename=DoliWamp-2.5.1
+OutputBaseFilename=DoliWamp-2.6-beta
 ; Define full path from wich all relative path are defined
 ; You must modify this to put here your dolibarr root directory
 SourceDir=E:\Mes Developpements\dolibarr
diff --git a/htdocs/install/inc.php b/htdocs/install/inc.php
index 3e06d32f355..ef471bab680 100644
--- a/htdocs/install/inc.php
+++ b/htdocs/install/inc.php
@@ -24,7 +24,7 @@
 		\version    $Id$
 */
 
-define('DOL_VERSION','2.5.1');	// Also defined in htdocs/master.inc.php
+define('DOL_VERSION','2.6-beta');	// Also defined in htdocs/master.inc.php
 
 require_once('../translate.class.php');
 require_once('../lib/functions.lib.php');
diff --git a/htdocs/master.inc.php b/htdocs/master.inc.php
index a6e75b43180..4f415dafa8f 100644
--- a/htdocs/master.inc.php
+++ b/htdocs/master.inc.php
@@ -30,7 +30,7 @@
  *  \version    $Id$
  */
 
-define('DOL_VERSION','2.5.1');	// Also defined in htdocs/install/inc.php
+define('DOL_VERSION','2.6-beta');	// Also defined in htdocs/install/inc.php
 define('EURO',chr(128));
 
 // La fonction clearstatcache ne doit pas etre appelée de manière globale car ralenti.