Xcode 13 required on macOS Monterey
September 21, 2021
As you plan to update to macOS Monterey after the public release this fall, you’ll also need to update to Xcode 13 (which includes Xcode Cloud and the latest SDKs for iOS, iPadOS, macOS, tvOS, and watchOS). Xcode 13 is compatible with macOS Big Sur 11.3 or later.