I'll try again to explain this...
I think a message encouraging Rhino V5 for Windows users to have a look at the V6 WIP was unintentionally sent to owners of Rhino V5 for Mac.
The V6 WIP for Windows is of no use to Mac Rhino users.
Access to the V6 WIP is handed through the Serengeti category.
It requires two things:
- You have a V5 for Windows Registered using your email address
- You use the same email address for the Discourse discussion forum
Sorry for the confusion.