I'm pleased to announce the release of Jess 7.0a5, the latest version of the development branch of Jess. Jess is a fast, lightweight rule engine and scripting environment for Java. This release includes significant enhancements to both the Jess rule engine and the Eclipse-based JessDE development environment. Jess 7.0a5 is available for download at
New engine features in this version include faster Java object matching and reduced memory usage. IDE enhancements include "quick fix" and enhanced content assist, a live view of the Rete network for individual rules, more information in the debugger, and resolution of all reported problems concerning class paths and external projects.
Jess is available for academic use at no cost, and can be licensed for commercial use.