User blog comment:Kirkburn/Technical Update: July 25, 2016/@comment-24014422-20160728191617/@comment-2200849-20160728192027

Luma.dash, this was a purely cosmetic change. Before this release, the button would say "Edit profile," even if an administrator protected the user page for some reason. This was misleading, since the button would claim you could edit the page when in fact you could not. All that has changed is that the code will check if you can actually edit the page, and display the corresponding text.