Difference between 2022v (part1) and 2020v (part1)

I’m a beginner in deep learning and want to take the course to help me with my graduation project, but I need help to determine what version of the course to take as I see that 2022v (part1) nearly doesn’t talk about Rnn which I want to know about.
and lastly do 2022v and 2020v both have homework or something to get practice?