[cxr]

That, too, would constitute a new edition if the updates went into the work itself. Otherwise, the previous work is still a thing—you're just pretending that it's not and the new thing was the thing all along. That's harmful and dangerous and unnecessary.

What you want doesn't necessitate changes to anything except maybe the reader software. Annotation and commentary has been around for millennia. What you want is for the reader to inline the commentary. That's fine.