changes in fixed income topic in the last years

hi guys, this is my first post here. I’m struggling a lot with fixed income topic. i tried to have a look at the last three morning session exams in order to realize how difficult the questions were. for example, i had a look at question 2 in 2016 morning exam. i realized that The LOS indicated in the answers sheet for that question (reading 22 - fixed income portfolio management part II) are completely different compared to the actual LOS in the curriculum for that reading. I noted the same for other 2014-2016 fixed income question. Now, my question is, did the fixed income topic drastically change in the last two years? Am I getting something wrong?

Yes- CFAI website highlights the changes.