Chiba Web now provides a full AJAX interface in addition to the traditional non-scripted mode. While processing is done on server-side the user-experience is comparable to a full client-side implementation. The AJAX mode supports Firefox/Mozilla, IE6 and Safari 2.
Chiba Web 2 is a complete new generation and this release shouldn't be considered production-ready. RC1 serves the purpose of gathering potential outstanding issues and preparing the final production release.