Licensed Rhino for Mac

I bought the initial, licensed version commercial version of Rhino for Mac. How do I upgrade to the newest version, which I believe is 5.2? Isn’t this supposed to be included for those of us who bought a commercial license?

The latest released version is 5.1:

There are, however, Work-In-Progress versions that are being developed and published for testing. These are generally said to be not-for-production as they might not be as stable as the released version. Having bought a commercial Rhino for Mac license, you have access to these WIPs. The latest one should always be pinned to the top of the Rhino for Mac category here on the forum. In this case, it’s the Rhino for Mac 5.2 WIP: