2017 schweser notes for 2018 June Attempt

Dear All,

I am in possession of the 2017 Schweser notes and I am due to sit for the 2018 June Attempt for Level 1. This will be my first attempt. I would like to know if these notes are fine for the 2018 attempt or whether I should go ahead and buy the 2018 books? Personally, I am not positive about buying a new set.

My background - I am not new to Finance and am a Chartered Accountant by profession.