iOS 18 is the eighteenth and current major release of Apple's iOS operating system for the iPhone.[3][4][5][6] It was announced on June 10, 2024, at the 2024 Worldwide Developers Conference (WWDC). It was made publicly available on September 16, 2024, as a free software update for supported iOS devices.[7] It is the direct successor to iOS 17 and was announced alongside iPadOS 18, macOS Sequoia, watchOS 11, visionOS 2, and tvOS 18.