Hello, The Java API Tracker project now performs the analysis of the Logback library releases: http://abi-laboratory.pro/java/tracker/timeline/logback/ You can find the results of the backward compatibility analysis for the recent changes in the API and navigate over the history of API changes in the library. The reports are generated daily by the japi-compliance-checker and japi-tracker tools: https://github.com/lvc/japi-tracker Hope this will help users, maintainers and developers of the library to maintain backward compatibility. Thank you.