The removal of

The following rules describe the scope of names declared in classes.

seems to change the meaning of the third and the fourth paragraphs: now they talk about all names whose scope covers a class or past the end of a class definition (e.g. a global variable declared before the class definition), not only names declared in classes.
This looks like a normative change which was introduced editorially.

Thanks, that's a good point. Perhaps we should insert "The potential scope of a declaration in a class that extends ..." to p4? @zygoloid?

Yes, I agree.