FRM curriculum changes from year to year


I’m planning on enrolling for November 2019 LVL1 FRM exam. However, I’m not sure whether I’ll have enough time to study to pass.

So, if I study and fail, will large part of studying go to waste due to curriculum changes from year to year? Or does the curriculum remain same?

The reason why I’m asking is that my buddy sat for LVL3 CFA exam last year and failed. Now he is giving it another try this year but he is complaining that the curriculum has changed significantly from 2018 and large part of his work has gone to waste.