service studio version is not available in old list service studio on the outsystems.

I'm working on a project for my client and which is developed on Outsystems 9.1.501.0 version. It's service studio version is not available in old list of service studio on the outsystems.com .

 I need  9.1.501.0 version of service studio for my development purpose.


Please help me here to find accurate version for required service studio.


Thanks,

Rajesh Kumar