Does Xdebug depend on PHP version (VSCode IDE)?

I am struggling to enable debugging in VSCode. I was following a few different tutorials but none of them worked for me. What I don't understand is if I have multiple php versions installed, the newest one, but also some older and currently, I am working on a project that uses and older version of php (php5.6.40) do I need to configure Xdebug to work with the newest version of php I have installed, and that way it will also support older versions, or do I need to enable it for each specific version of php to make it work for this project I am working on.