DEMO is a tool for modeling EP.
This particular DEMOS project is implemented as an Eclipse plugin, which allows for graphical editing of applications that use the EP model. Additionally, it provides background code generation and immediate feedback on both the syntactical validity of models and user-supplied code.
Regarding what's new in the latest release, users can expect a few changes. This includes the addition of a visual inspector for running EP systems, as well as significant performance improvements. There are also improved consistency between models and generated code, along with minor feature enhancements and bug fixes to improve the overall experience.
Version 0.9.1: N/A