As a Mac user myself I can't wait to see our latest hand tracking available on Mac again!
Whilst our older V2 SDK is still available for Mac there have been significant improvements in our hand tracking since then and as this is a legacy SDK we are not releasing any updates to it.
It's a shame that Apple's withdrawal of 32-bit support has killed of a host of apps that were still available and unfortunately as these were designed and built by a variety of different developers a number of years ago it is not a simple matter to update these to work with the latest versions of OSX.
However there are still some applications available which will work correctly such as Touchless for Mac which is available here.
Although I am limited on the information that I can give you, I would like to reassure you that we have not forgotten Mac users and I would recommend staying tuned to our social channels and news feeds this year for any announcements that we make concerning this issue.