What is the difference between the maven plugin and the maven-publish plugin? When would I use one over the other?

I’m unclear on the difference between the ‘maven’ plugin and the ‘maven-publish’ plugin. They both appear to do the same thing, though my impression is that ‘maven-publish’ supersedes ‘maven’. Is this correct?

The ‘maven-publish’ plugin is the successor of the ‘maven’ plugin and will at some point replace it. For now, ‘maven-publish’ is still incubating, and has some known limitations.

Thanks Peter.