A system could include a first set of mappings between application files and version indicators. The application files could be related to a software application. The system could also include a second set of mappings between application files and a first subset of version indicators, where a standardized release of the software application includes application file versions in accordance with the first subset. The system could further include a third set of mappings between a second subset of version indicators and records indicating that the corresponding application file versions were written after the standardized release. The system could further include processors configured to perform operations including: determining that an application file in the third set of mappings has standardized release version. The operations could further include providing a difference between a recent version of the application file and the application file version that was part of the standardized release.