A modification method and system. The method includes retrieving by a computer processor of a computing system a list of features and plug-ins associated with an application. The features include features version metadata and the plug-ins include plug-ins version metadata. The computer processor compares features source code associated with the features with previous versions of associated source code. The computer processor generates modified features version metadata associated with the features version metadata. The modified features version metadata includes updated version labels differing from previous version labels of the previous versions of associated source code. The features are assembled into an application.