Starting today, customers can run macOS Big Sur (11.2.1) as Amazon Machine Images (AMIs) on EC2 Mac instances. macOS Big Sur is the current major macOS release from Apple, and introduces multiple new capabilities and performance improvements over prior macOS versions. macOS Big Sur will support running Xcode versions 12.5 and later, which will include additional SDKs for iOS 14.5, iPadOS 14.5, tvOS 14.5, watchOS 7.4, and macOS Big Sur 11.3. Customers can now also access Amazon EFS file systems from EC2 Mac instances running macOS Big Sur.
Source:: Amazon AWS