Hello,
I'd like to share the review of API changes and backward binary compatibility for the HtmlUnit library since version 2.19: https://abi-laboratory.pro/java/tracker/timeline/htmlunit/
The report is updated 3 times a week. Hope it will be helpful for users and maintainers of the library.
The report is generated by https://github.com/lvc/japi-tracker for jars at http://central.maven.org/maven2/net/sourceforge/htmlunit/htmlunit/ according to https://wiki.eclipse.org/Evolving_Java-based_APIs_2.
Thank you.