Feedback can be sent to the Firebird-java mailinglist or on the issue tracker http://tracker.firebirdsql.org/browse/JDBC.
Jaybird 3.0 is a big change from Jaybird 2.2 and earlier. We have rewritten the entire low-level implementation to be able to support protocol improvements in newer Firebird versions, we have made changes with a stricter interpretation of the JDBC requirements, and we have removed some parts that were either obsolete or not functioning correctly.
We recommend that you do not consider Jaybird 3.0 a drop-in replacement for Jaybird 2.2, and study the release notes carefully.
See also: