public static function isUpgradeAvailable()
    {
        if (self::isInstallerAvailable()) {
            $migration_version = self::getMigrationVersion();
            $current_version = Symphony::Configuration()->get('version', 'symphony');

            return version_compare($current_version, $migration_version, '<');
        }

        return false;
    }
public static function isUpgradeAvailable()
    {
        if (self::isInstallerAvailable()) {
            $migration_version = self::getMigrationVersion();
            $current_version = Symphony::Configuration()->get('version', 'symphony');

            return version_compare($current_version, $migration_version, '<');
        }

        return false;
    }
public static function isUpgradeAvailable ( ) { if ( self :: isInstallerAvailable ( ) ) { $ migration_version = self :: getMigrationVersion ( ) ; $ current_version = Symphony :: Configuration ( ) -> get ( 'version' , 'symphony' ) ; return version_compare ( $ current_version , $ migration_version , '<' ) ; } return false ; }
Checks if an update is available and applicable for the current installation.

@since Symphony 2.3.1
@return boolean
Checks if an update is available and applicable for the current installation .