If you set up a subpath that was never verified, Domain Connect now shows it with a button to remove it. Previously, it could sit there invisibly and prevent you from moving to brand-sites — the error message now names the subpath and tells you exactly where to go to clear it.
On sites where brand-sites is active, the browser tab icon and Search Console tag cards no longer appear. Neither of those reaches a brand-site, so showing them was misleading. A note now points you to DNS verification instead.