RobotStudio event

Robotware to controller mismatch - is this possible?

I have a compact controller at a customer that is running 5.14.03 and I have some path generation software that is compiled against RobotStudio 5.61

What are the backwards compatibility rules - do I have to update the controller or is the latest compilation (ABB.Robotics.dll and ABB.Robotics.Controllers.dll) backwards compatible with RW 5.14

I am hoping for a quick answer as I am in Japan with the customer :-)