diff --git a/extension.driver.php b/extension.driver.php
index db458aa..f87edfe 100644
--- a/extension.driver.php
+++ b/extension.driver.php
@@ -1,22 +1,6 @@
 <?php
 	Class extension_backend_add_script extends Extension
 	{
-		/**
-		* About this extension:
-		*/
-		public function about()
-		{
-			return array(
-				'name' => 'Backend add script',
-				'version' => '1.2',
-				'release-date' => '2011-12-15',
-				'author' => array(
-					'name' => 'Twisted Interactive',
-					'website' => 'http://www.twisted.nl'),
-				'description' => 'Adds a hook to the backend so you can easily make JavaScript adjustments on certain pages'
-			);
-		}
-		
 		/**
 		* Set the delegates
 		*/
@@ -47,8 +31,14 @@ public function addScriptToHead($context)
 			$idEntry= isset($callback['context']['entry_id']) ? '"'.$callback['context']['entry_id'].'"' : 'false';
 			
 			// User information:
-			$javaScript.= "var user_id   = ".Administration::instance()->Author->get('id').";\n";
-			$javaScript.= "var user_type = '".Administration::instance()->Author->get('user_type')."';\n";
+			$author = null;
+			if (is_callable(array('Symphony', 'Author'))) {
+				$author = Symphony::Author();
+			} else {
+				$author = Administration::instance()->Author;
+			}
+			$javaScript.= "var user_id   = ".$author->get('id').";\n";
+			$javaScript.= "var user_type = '".$author->get('user_type')."';\n";
 			$javaScript.= "var driver    = ".$driver.";\n";
 			$javaScript.= "var action    = ".$action.";\n";
 			$javaScript.= "var section   = ".$section.";\n";
@@ -56,9 +46,9 @@ public function addScriptToHead($context)
 			
 			$tag = new XMLElement('script', $javaScript, array('type'=>'text/javascript'));
 
-            Administration::instance()->Page->addElementToHead($tag);
-            Administration::instance()->Page->addScriptToHead(URL.'/extensions/backend_add_script/assets/custom.js');
-            Administration::instance()->Page->addStylesheetToHead(URL.'/extensions/backend_add_script/assets/custom.css');
-		}	
+			Administration::instance()->Page->addElementToHead($tag);
+			Administration::instance()->Page->addScriptToHead(URL.'/extensions/backend_add_script/assets/custom.js');
+			Administration::instance()->Page->addStylesheetToHead(URL.'/extensions/backend_add_script/assets/custom.css');
+		}
 	}
 ?>
diff --git a/extension.meta.xml b/extension.meta.xml
index 1748180..043bba7 100644
--- a/extension.meta.xml
+++ b/extension.meta.xml
@@ -3,10 +3,10 @@
 	<name>Backend Add Script</name>
 	<description>Adds a hook to the backend so you can easily make JavaScript and CSS adjustments on certain pages.</description>
 	<repo type="github">https://github.com/TwistedInteractive/backend_add_script</repo>
-    <types>
-        <type>Other</type>
-        <type>Workflow</type>
-    </types>
+	<types>
+		<type>Other</type>
+		<type>Workflow</type>
+	</types>
 	<authors>
 		<author>
 			<name github="TwistedInteractive">Twisted Interactive</name>
@@ -14,7 +14,10 @@
 		</author>
 	</authors>
 	<releases>
+		<release version="1.3" date="2014-10-15" min="2.4.0" max="2.5.x">
+			- Compatibility with Symphony 2.5.x
+		</release>
 		<release version="1.2" date="2011-12-15" min="2.3"/>
-        <release version="1.1" date="2010-08-17" max="2.2.x"/>
+		<release version="1.1" date="2010-08-17" max="2.2.x"/>
 	</releases>
 </extension>