When Should You Upgrade to macOS 12 Monterey, iOS 15, iPadOS 15, watchOS 8, and tvOS 15?

September is here, which means that Apple will soon start releasing major upgrades for all its operating systems. Apple previewed these releases at its Worldwide Developers Conference in June, and many people have been testing the public betas since. Once Apple judges macOS 12 Monterey, iOS 15, iPadOS 15, watchOS 8, and tvOS 15 [...]