FR old or new course option ?

Many say FR is more vast in new course as compared to old one & it's better to clear it in old syllabus only.

For me, FR is the most difficult subject . So please guide me which one i should opt for; Old or New course? by considering : -

1) No studies are started as of now &
2) Only for completion of the degree ; because as of now i haven't decided anything about future use of the degree.

Thanks in advance 😊