Elementary theory. You need to know the basics first.

The chord that has the same name as the key signature is the root.

So in C major, just plain old C is the rood. G7 is dominant and F is subdominant.
I = root
V7 = dominant
IV = subdominant.

I don't think they changed it.

As you go to more advanced theory, this is still not changed, more situations get added.

So if someone publishes something that conflicts with that, I just quit and move on.

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Bob "Notes" Norton smile Norton Music
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