Whats the diffrence? I was just wondering what are the diffrences when you download a rom and one is (v1.0) and another is (v1.1). Is there a way to find out whats diffrent?

I'm mainly talking about SuperMarioWorld 2: Yoshi's Island. That has two versions, and I was wondering whats the difference?


(I'd really like to know the difference between the two versions with yoshi's island, but i'd also be nice to know why they even do it.)

This isn't a very important question, but it is bugging me. Answer if you've got an idea or know.

Thank you.