Regarding the restored missing features, among the most important for audio pros is support for control surfaces (hardware mixing boards used to control audio applications). If you have a control surface that uses the Eucon, Mackie MCU, or Logic protocols, Audition should respond to it. I don't have a pro surface, but I was able to control Audition via Saitara Software's AC-7 Core app, which uses the Mackie protocol. I additionally connected Roland's Sonar V-Studio 100 to my Mac Pro and it too was able to control Audition.