Regarding new course of ca final - paper 1 - financial repor

Sir,

I am a Student registered under old cousre of CA - Final. I wanted to take class of Paper 1 - FR.

In market both the variants are being provided i.e. old and new.

My attempt is in May 18.

Which class should I go for  - the New one or the Old one.

What if I go For New?

Would I be able to give the exam of Old Course??

Please Clarify my doubt