About in Settings, a choice of when updates download, and smaller downloads

Licence in Settings — a new Licence section shows your plan, your masked licence key, how many of its computers are in use and how long updates are included. Activate a key from your receipt email, check it again, or remove it from this computer to use it on another one.

About in Settings — a new About section shows your version, checks for updates on request, and lets you download a waiting update or restart to install it.

Choose when updates download — turn off "Download updates automatically" in Settings → About to decide yourself when a new version downloads.

Smaller downloads — the installers and the installed app are smaller, and the macOS disk image is more tightly compressed.