I have just uploaded a new snapshot version for Jaybird 2.2.4 to
sourceforge and the sonatype snapshots repository for Maven.

Most notable changes are support for the Firebird 3.0 alpha 1 BOOLEAN
type and support for Java 8. For other changes see
http://tracker.firebirdsql.org/browse/JDBC/fixforversion/10531

This snapshot is intended only for testing purposes and has not been
tested with the native or embedded subprotocols.

Download area (Java 5, 6, 7 and 8):
https://sourceforge.net/projects/firebird/files/firebird-jca-jdbc-driver/2.2.4-SNAPSHOT/

Maven snapshot repository:
https://oss.sonatype.org/content/repositories/snapshots/

groupId: org.firebirdsql.jdbc
artifactId: jaybird-jdk1x (where x = 5, 6, 7 or 8)
version: 2.2.4-SNAPSHOT

If you have any problems, let me know in the Firebird-Java list. Bugs
can be reported in the tracker http://tracker.firebirdsql.org/browse/JDBC

Mark
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Mark Rotteveel