I am please to announce the first beta release of CP-2.2.0 We've started to collect changes on this page: http://www.cherrypy.org/wiki/WhatsNewIn22 (there's many more items to come).
Included in this release are:
Support for multiple applications within one CherryPy process
Lots of bug fixes and improvements (including a more stable session handling)
Switch to lowercase API (instead of camelCase). (old API is still supported but deprecated)