The 3.0 "what's new" notices have served their purpose, so swap them for a single thank-you notice that comes back once on every fresh install and version bump. It carries Buy Me a Coffee and Ko-fi buttons and only shows on desktop. Adds a per-version recurring mode (new dismissed_app_version column) plus external-link CTAs to support it; the 3.0.14 whitespace-collision admin notice stays active.