Following year-specific handbook

In order to qualify for graduation, must you follow the handbook in the year in which you started it?

For example, if you started the course in 2021, would you still have to abide by the 2021 handbook still? or could you follow the newly updated 2024 handbook and still graduate?

I've contacted student offices and ive gotten a both yes and no answer from 2 different people, so a bit confused now.