Q: Is 2.0 compatible with Servlet 2.4 API?
A: Yes. So you can use it in any Servlet 2.4 compliant containers such as Tomcat 5 or later.
Q: Are there released versions or beta versions that I can try out?
A: Please check the News and Status and the Downloads page. If you want to try out the source by yourself, then please see Build from source page.