Hi! Pull request #934 [1] links to this interesting tool to analyze the compatibility between versions of a library: https://github.com/lvc/japi-compliance-checker
I found it quite interesting and run the compatibility check between jclouds 1.9.2 and 2.0.0-SNAPSHOT. I included all jclouds jars in the comparison and the resulting HTML file is quite big (27MB) so it will take a while to load in the browser: https://storage.googleapis.com/jclouds-compat/index.html If we find this kind of reports are useful, we could considering including them as part of the release notes. I. [1] https://github.com/jclouds/jclouds/pull/934