Reverted a bad versioning idea. The Predis\RedisServer__Futures class will always be availabe and it represents the current development branch of Redis.

lib/Predis.php

@@ -977,7 +977,7 @@ class RedisServer__V1_2 extends RedisServer__V1_0 {
 }
 
 class RedisServer__Futures extends RedisServer__V1_2 {
-    public function getVersion() { return 'DEV'; }
+    public function getVersion() { return '1.3'; }
     public function getSupportedCommands() {
         return array_merge(parent::getSupportedCommands(), array(
             'multi'     => '\Predis\Commands\Multi',