<ul><li>Apple Intelligence will be turned on automatically when updating to iOS 18.3, iPadOS 18.3, and macOS Sequoia 15.3.</li><li>Users can disable Apple Intelligence by navigating to the settings and turning off the toggle.</li><li>In earlier iOS releases, Apple Intelligence required manual activation, but now it will be enabled by default.</li><li>iOS 18.3 brings changes to the Notification Summary feature and revives support for repeating operations in the Calculator app.</li></ul>

iOS 18.3 turns on Apple Intelligence by default

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