I have been using CbB, and just installed the new SONAR (paid version). In nearly all respects I am very happy with it. But...
At https://www.cakewalk.com/sonar an "expanded library of prochannel modules" is mentioned, and what looks like the LP multi-band compresser is shown (see pic below). I don't see any of the LP plugins in my installation .
From reading through the threads it seems that the LP plugins are only available if one previously had Sonar Platinum installed. Is that right? If so, that kind of sucks because the above mentioned web page surely indicates that this is part of the new Sonar for which I paid. Perhaps it will part of a future release.