Sonar X3 is a high-end audio recording application that's recently experienced what's known in the software business as an Oracle-style release. That's when you take the customer's money, ship them what is essentially a buggy beta, then strive to fix things and update them as fast as you can. This was the MO for Oracle (and others less well-known) for years early on, hence the name.
Cakewalk released the X3 software on 9/28/2013, released X3b on 10/3/2013, and then X3c on 10/28/2013. Fortunately for the company, the dust has settled: Sonar X3 is actually an excellent piece of software—and as of version C, largely free of major bugs.