At today’s WWDC 2020, Apple officially released the latest macOS: macOS 11.0, named macOS Big Sur. The new macOS is the biggest redesign since macOS 10. macOS Big Sur borrows many elements from Apple iOS, including Control Center (where you can change brightness and toggle Do Not Disturb) and a new Notification Center (grouped related notifications).
The All-New macOS Big Sur System
The new system redesigns many apps, including Mail, Photos, Notes, and iWork, and updates Messages with a new search feature. Let’s take a look at the new system’s looks.


Apple’s Mail Slip-up: macOS Big Sur Becomes macOS Bug Sur
Apple invited some people to beta test macOS Big Sur, but the email subject had an error — macOS Big Sur became Bug Sur. Was that intentional? Inviting developers to test the new system to find bugs?

