* revert version.

config/config.php

@@ -17,7 +17,7 @@ if(!function_exists('getWebRoot')){function getWebRoot(){}}
 
 /* Basic settings. */
 $config = new config();
-$config->version      = '9.0.stable';        // The version of zentaopms. Don't change it.
+$config->version      = '9.0';        // The version of zentaopms. Don't change it.
 $config->charset      = 'UTF-8';           // The charset of zentaopms.
 $config->cookieLife   = time() + 2592000;  // The cookie life time.
 $config->timezone     = 'Asia/Shanghai';   // The time zone setting, for more see http://www.php.net/manual/en/timezones.php

www/index.php

@@ -40,7 +40,7 @@ if(isset($_GET['mode']) and $_GET['mode'] == 'getconfig') die(helper::removeUTF8
 
 /* Check for need upgrade. */
 $config->installedVersion = $common->loadModel('setting')->getVersion();
-if(!(!is_numeric($config->version{0}) and $config->version{0} != $config->installedVersion{0}) and $config->version > $config->installedVersion) die(header('location: upgrade.php'));
+if(!(!is_numeric($config->version{0}) and $config->version{0} != $config->installedVersion{0}) and version_compare($config->version, $config->installedVersion, '>')) die(header('location: upgrade.php'));
 
 /* Remove install.php and upgrade.php. */
 if(file_exists('install.php') or file_exists('upgrade.php'))

www/upgrade.php.tmp

@@ -38,7 +38,7 @@ $app->setDebug();
 
 /* Check the installed version is the latest or not. */
 $config->installedVersion = $common->loadModel('setting')->getVersion();
-if($config->version <= $config->installedVersion) die(header('location: index.php'));
+if(version_compare($config->version, $config->installedVersion) <= 0) die(header('location: index.php'));
 
 /* Run it. */
 $app->parseRequest();