Package folder in .julia/packages

Tooling Package Management
1

Can I ask why there are many folder for the same package?

And I want to know that I can remove the folder.

thank you

스크린샷 2021-11-12 오전 4.55.40
스크린샷 2021-11-12 오전 4.55.40966×918 98.7 KB

2

I believe this is just different versions of the package.

3

Thank you, Mr.Smith

I use pathof(Convex) function in different .ipynb files, then the results in each file point out different folder in the picture above.
Can I ask why this situation happened?