There's no specific schedule, fixes and improvements are being made and then checked over. Only after i've gone through things a few times to check will I release something. Currently it's running at round 2 weeks per release. Is there something particular you are wanting?
Sampling would of course be something important so that you don't have to use other programs. Are you trying something about Rasperry PI? If you need the library from CMI 3, I have it and could send it to you.