This patch fixes a security vulnerability in the Unity3D game engine we use. According to Unity, there is no evidence that this vulnerability has been actively exploited or that anyone has been affected. We are applying this update as a precautionary measure to ensure the long-term security of the game.
If you would like to read more about this: https://discussions.unity.com/t/unity-platform-protection-take-immediate-action-to-protect-your-games-and-apps/1688031
Patch Notes 0.9.6
Security
Update of our Unity version to close a security vulnerability