When Should You Upgrade to macOS 11 Big Sur, iOS 14, iPadOS 14, watchOS 7, and tvOS 14
(Note that we say when and not if. There’s no harm in delaying a major operating system upgrade until Apple has squashed early bugs. But waiting too long puts you at risk from security vulnerabilities and prevents you from taking advantage of compelling new features. Plus, when you buy a new Mac, iPhone, or iPad after these operating systems have shipped, you’ll get the new version, and it may not even be possible to downgrade. It’s best to be prepared in the event that you’re forced to replace one of...