Keep old page on Gitlab Page

I have an account on and use gitlab page to host a static website.

At a tag of the repository I upload some page to And then, on a other commit to master I upload some page to

The problem is when I upload to directory testing the ver1 will be delete or overwrite because when building testing I don’t build ver1

Is gitlab page or gitlab ci has any way for me to keep old version while continue writing another version?