diff --git a/LICENSE.txt b/LICENSE.txt
index 2010d546..08c15e79 100755
--- a/LICENSE.txt
+++ b/LICENSE.txt
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2012-2022 Contentstack (http://app.contentstack.com). All Rights Reserved
+Copyright (c) 2012-2023 Contentstack (http://app.contentstack.com). All Rights Reserved
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/src/Contentstack.php b/src/Contentstack.php
index 0873130f..138f6e6a 100755
--- a/src/Contentstack.php
+++ b/src/Contentstack.php
@@ -39,14 +39,15 @@ abstract class Contentstack
      * @param string             $access_token : Contentstack Stack ACCESS TOKEN.
      * @param string             $environment  : Environment Name.
      * @param array              $config       : Stack Configuration to provide region.
-     * @param ContentstackRegion $region       : Region name of Contentstack.
-
+     * @param ContentstackRegion $region       : Region name of Contentstack. (default region 'us')
+     * 
      * @return Stack
      * */
+
     public static function Stack($api_key = '',
         $access_token = '',
         $environment = '',
-        $config = array('region'=> '', 'branch'=> '', 'live_preview' => array('enable' => false, 'host' => 'api.contentstack.io'))
+        $config = array('region'=> 'us', 'branch'=> '', 'live_preview' => array('enable' => false, 'host' => 'api.contentstack.io'))
     ) {
         return new Stack($api_key, $access_token, $environment, $config);
     }
diff --git a/src/ContentstackRegion.php b/src/ContentstackRegion.php
index 42f24868..b3026e9b 100755
--- a/src/ContentstackRegion.php
+++ b/src/ContentstackRegion.php
@@ -30,4 +30,5 @@ class ContentstackRegion
     const EU= "eu";
     const US= "us";
     const AZURE_NA= "azure-na";
+    const AZURE_EU= "azure-eu";
 }
\ No newline at end of file
diff --git a/src/Stack/BaseQuery.php b/src/Stack/BaseQuery.php
index f7f548a3..e7b34c4d 100755
--- a/src/Stack/BaseQuery.php
+++ b/src/Stack/BaseQuery.php
@@ -546,6 +546,30 @@ public function includeCount()
         return $this->queryObject;
     }
 
+    /**
+     * To include the Metadata of entries based on the results
+     * 
+     * @example 
+     * 
+     * use Contentstack\Contentstack;
+     * $stack = Contentstack::Stack("API_KEY", "DELIVERY_TOKEN", "ENVIRONMENT");
+     * $result = $stack->ContentType('product')->Query()->toJSON()->includeMetadata()->find();
+     * 
+     * @return Query
+     * */
+
+
+    public function includeMetadata() 
+    {
+        $this->queryObject->_query = call_user_func(
+            'contentstackAddBoolean', 
+            'include_metadata', 
+            $this->queryObject->_query
+        );
+        return $this->queryObject;
+    }
+
+
     /**
      * To get only count result
      * 
@@ -603,7 +627,7 @@ public function includeOwner()
      * 
      * @return Query
      * */
-    public function addParam($key = '', $value = '') 
+    public function addParam($key = '', $value = '')
     {
         $this->queryObject->_query = call_user_func(
             'contentstackAddParam', 
diff --git a/src/Stack/Stack.php b/src/Stack/Stack.php
index e610f80f..4ea771f0 100755
--- a/src/Stack/Stack.php
+++ b/src/Stack/Stack.php
@@ -49,13 +49,14 @@ class Stack
      * @param string $api_key        - API Key of Stack
      * @param string $delivery_token - Delivery Token of Stack
      * @param string $environment    - Environment Name of Stack
-     * @param string $region         - API Key of Stack
+     * @param string $region         - Region name of Contentstack. (default region 'us')
+     * 
      * */
     public function __construct(
         $api_key = '', 
         $delivery_token = '', 
         $environment = '', 
-        $config = array('region'=> '', 'branch'=> '', 'live_preview' => array())
+        $config = array('region'=> 'us', 'branch'=> '', 'live_preview' => array())
     ) {
         $previewHost = 'api.contentstack.io';
         if ($config && $config !== "undefined" && array_key_exists('region', $config) && $config['region'] !== "undefined" && $config['region'] !== "us" ) {