This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Jess 7.1 includes many new performance enhancements and usability improvements. The rule language and Java API have many new features, and existing features have been enhanced. See the release notes for more details about what's in Jess 7.1: