The latest release of Jess, the rule engine for the Java platform, is
available at the usual place:

   http://herzberg.ca.sandia.gov/jess/download.shtml

This is a bugfix release. From the ChangeLog:

   Fixed two incremental reset problems (thanks Kevin
   Kusy and Xiaocheng Luan.) str-cat was evaluating the
   first argument twice (thanks Neal Wyse.) Fixed bug
   using  '|' constraint on unbound slots inside
   (logical) (thanks 'Ray'). readline now works better in
   immediate mode. Fixed query name resolution issue
   (thanks Felix Bachmann). "crlf" translates to 0x0D0A
   on Windows (thanks Morten Lind.)

As usual feedback and questions are welcome on the mailing list at
jess-users@sandia.gov or privately to ejfried@ca.sandia.gov .