F5 practice and revision kit query

Hello,

I am preparing for performance management paper but have study kit and exam kit dated until June, 2018. I have checked the website for any changes after June, 2018 which according to the website ( syllabus and study guide) is nothing major. My question is if I can keep using the revision kit for my attempts which I will be taking in future because I have not managed to finish my course yet and so have not used the revision kit too.

Regards