P5 BPP Study Text

Hi,

I already have a copy of the BPP P5 Study Text for exams up to June 2017, but I don’t plan on sitting this exam until Dec 2017. Should I get the new P5 Study Text for exams up to Aug 2018 or would the old book still be sufficient? I don’t want to miss any changes which may have taken place.

Any advice on this would be great? Just trying to save the ££s if possible..

Thanks