Rhino — 6 License Key Rh60 -2021-

Rhino 6 does use simple license key strings like "XXXX-XXXX-XXXX" that you can find online. Instead, Robert McNeel & Associates issues a license key tied to:

Rhinoceros 6 (version 6, often abbreviated as Rhino 6 or Rh6) was released in early 2018 and brought massive improvements over Rhino 5, including: Rhino 6 License Key Rh60 -2021-