After months of dealing with Apples driver support team, they eventually told us we are on our own.
With that being said, our VAD for Mac was somewhat (but not completely) broken in Mavericks.
This bypasses all of the complex DRM controls the record companies and movie studio have put into place with the cooperation of Apple and Microsoft. Technically, a VAD can steal music or other audio in perfect fidelity. Well, I think the answer lies in Digital Rights Management (DRM). This may seem strange on the outside because our Windows driver is based on a Microsoft-supplied example virtual audio driver for XP and Apple users have relied on Soundflower for years. Regarding Virtual Audio Drivers: Basically, Microsoft and Apple have personally told us, in no uncertain terms, they do not like virtual audio drivers (VAD) and they will not officially support them. Not only does this save us a lot of work, it will give us a chance to understand Yosemite better in parallel to the Windows beta program.
When we are all happy with the changes then we will port to Mac. The Windows version will be available first.