Many times I see that when an user edits his own answer he notify it with an heading like this:
content added to the previous version of the answer
I don't like it very much because in my opinion this make the answer more ugly. And I think that it is more useful to integrate the content, adjusting the part without any heading. I don't know if this is not a good practice, and I imagine that someone can think that with the edit heading it is easier to see the improvements and that the previous up-vote refers to the original question, but in fact I think that this does not make much sense. What is the best practice?