I heard that DNN 4.3.5 is due out shortly. Its a stabilization release, so don't look for new features. Kelly submitted a bug fix to them yesterday and was concerned about the complexity. I can imagine the core team is so close to the system that they can't see the difficultly that new recruits would have in understanding this organization and contributing. I told Kelly that perhaps he and I can write a Wrox Press book on how to contribute to the DNN source!