The link below has information on the latest version of State Designer:
opsive.com
This update has been released on the Opsive Store and will be on the Asset Store soon.
State Designer 1.3.3 Released - Opsive
Version 1.3.3 of State Designer is on its way to the Opsive Store and the Asset Store. When upgrading from before 1.3 with prefab-based GameObject . . .
opsive.com
This update has been released on the Opsive Store and will be on the Asset Store soon.