June 17 1998. The reference manual has been updated to reflect all outstanding changes. See the reference manual for a description. See the reference manual for a description of the syntax and semantics of these types. See the reference manual for further information.
Several bug fixes.
Apr 24 1998. Feb 7, 1997. The first Shift users' workshop took place. Material Handling Systems Carlo Cloet, Martin Krucinsky. Automated Highway Systems Kevin Leung, Dave Gulick, Jin-Gang Yi, Adam Howell.