In any other version(s) than what is stated in the warning/disclaimer, the product will not work as expected and/or have missing content, dependencies, etc... Attempting to make it work in other versions will be at one's own risk, and I'd not expect JR support if attempting it either.
The warning disclaimers are there for a reason.
In your particular instance, it's safe to assume it was built in TS12, therefore utilising content, scripting and features from that particular program.