The stable version of Redis will be 2.4.

lib/Predis/Profiles/ServerVersionNext.php

@@ -3,7 +3,7 @@
 namespace Predis\Profiles;
 
 class ServerVersionNext extends ServerVersion22 {
-    public function getVersion() { return 'DEV'; }
+    public function getVersion() { return '2.4'; }
     public function getSupportedCommands() {
         return array_merge(parent::getSupportedCommands(), array(
             /* remote server control commands */