The latest release of Jess, the rule engine for the Java platform, is now available from http://herzberg.ca.sandia.gov/jess Jess is a fast, light rule engine and scripting environment written entirely in Java. You can build Java software that has the capacity to "reason" using knowledge you supply in the form of declarative rules. It is supplied as a programmer's library, making it ideal for embedding in larger applications. It is free for academic use and can be licensed for commercial use. Licenses include full source code and support. Changes in this release: Jess now works as a standard extension, including loading user classes (thanks Ted Neward). Fixed a potential stack overflow in FactList.processPendingFacts() (thanks Ray Mekert.) Error messages from jess.awt.Canvas.paint() are flushed (thanks Isilyn Cabarrubias).