When executing sql with the update command combined with info log level the sql executed does not show up with 4.0.0 or above. The different levels available are debug, info, warning, severe,. It outputs to the console (stderr stream, i think), not to a file. If you need to troubleshoot the executed sql, set the loglevel to info, as follows. I'm having some exceptions (mostly database exception) in my changesets every now and then,.