I have just merged the master-newconf git branch into rsyslog's master branch. With that, the new config parser becomes part of the main line. This is a very important step, as it lays the foundation to an enhanced, easier to use config format. The current version has only few enhancements, but provides the necessary plumbing to do some real nice work within the next couple of weeks. Not only as a side-effect, the performance of script-based filters has been notably increased.
I expect a release with the current state within this week. Mostly cleanup and doc work remains to be done.