} // END - if
// @TODO Rewrite this to a filter
-if ((isExtensionInstalledAndNewer('cache', '0.1.2')) && (isCacheInstanceValid())) {
+if ((isExtensionInstalledAndNewer('cache', '0.1.2')) && (isValidCacheInstance())) {
// Destroy some cache files
foreach (array('config', 'extension', 'filter', 'modules') as $cache) {
// Use rebuildCache()