Elixir - Is There a Fix Command?

Elixir could do to like have more changes as a mix fix command, for example. In go when there's all the API that gets depicted or change or something like this, can use the command go fix to the next version of go. It will change your source code to it will remove or adapt the code for the new Syntax. So I think in Elixir, if they want to change some syntax or change some API, they can add a fix command. And then with addition, if you ever upgrade your addition, then there is a fix command that it will go through and rename variables and everything else.