Hello, I'm intending to sit for Operational level papers in May 2012. The BPP books that I have are of May 2010 (first edition) which I certainly think conforms to the new syllabus.

Now my question is can I read those books I have or do I need the latest edition? How much does it change in each edition? If there is any change in the latest edition, is it communicated to the students?

I hope my questions will be answered. Thanks.