Index: t3lib/class.t3lib_extmgm.php
===================================================================
--- t3lib/class.t3lib_extmgm.php	(revision 7088)
+++ t3lib/class.t3lib_extmgm.php	(working copy)
@@ -229,6 +229,20 @@
 		self::$extensionKeyMap = NULL;
 	}
 
+	/**
+	 * Retrieves the version of an installed extension
+	 *
+	 * @param	string		Extensionkey for the lookup
+	 * @return	mixed		Version as string, false if extension is not installed
+	 */
+	public static function getExtVersion($key) {
+		$version = false;
+		if (t3lib_extMgm::isLoaded($key)) {
+			include(t3lib_extMgm::extPath($key) . 'ext_emconf.php');
+			$version = $EM_CONF[$key]['version'];
+		}
+		return $version;
+	}