Why is it that when OpenFAST performs numerical simulations for a single wind turbine, the input file for MoorDyn is in the V1 format, but in the downloaded code, the MoorDyn program inside openfast-main seems to be the V2 version?
I see that MoorDyn’s input data in OpenFAST (as shown in the figure below) is consistent with the description of V1 in https://openfast.readthedocs.io/en/main/index.html. This question might be silly, but I am genuinely confused.
I can see that,in the module of IEA15MW and OpenFAST5.0 r-test .

I can see that,in the module of IEA15MW and OpenFAST5.0 r-test .
