Updating safari
Every time I refresh safari it says 'Your browser is looking a little retro... Sorry, but Apple Safari version 13 is no longer supported. Older browsers are slower, less secure, and don't support our latest features.' However, my MacBook is fully updated, and when I go into the App Store it says there are no updates. When I search how to update safari, it says it is automatically updated with macOS updates.
MacBook Air 13″, macOS 10.13