Hello, I've seen slf4j compatibility reports at [1] computed by the Clirr tool and just want to inform you about our alternative test results at [2]. Our tools are very young and may produce false positives/negatives at the moment, but the slf4j expert is needed to verify it. If you are still interested in backward compatibility then tell me please your feedback/suggestions about our tests. Thanks! [1] http://www.slf4j.org/compatibility.html [2] http://linuxtesting.org/upstream-tracker/java/versions/slf4j.html -- Andrey Ponomarenko Department for Operating Systems at ISPRAS web: http://www.LinuxTesting.org mail: aponomarenko@ispras.ru