How to handle resource changes after provider upgrade in terraform?

Hi, i am a little bit in trouble :sweat_smile:. I am new to these topics and would be happy if you can help me out. I postet this thread to stackoverflow without real success. I couldn’t find any guidance about handling changes. If you have any links to some guides (blog posts, video tutorials, books, etc). i would be very thankful.

My question is not only related to azure, more in general.