I'm polishing an old project that i released some years ago, and the main purpose on that, is to arrange some folder structures and port the entire code from actionscript to haxe.

All the game features, assets and design will remain the same. I have some doubts regarding versioning the project in this circumstance.

Assuming that the only thing that will be drastically changed is the code migration, is it correct maintaining the new project changes on the same repository ? I was thinking in tagging it something like V1.1 or Branch the entire project. But i'm afraid that i'm gonna deviate from the versioning patterns.

How can i use this version control issue in the best practice way ?

Thanks.