iOS 18.3 doesn't add any significant new features to Apple Intelligence—instead, it tweaks what's already there. Whereas Apple Intelligence was opt-in in previous OS versions, it is now on by default in iOS 18.3 on supported devices.

Apple Intelligence has been opt in since it debuted in Oct. 2024, but the next iOS will automatically turn it on. The change is set to rollout with iOS 18.3, iPadOS 18.3, and macOS Sequoia 15.3 Anyone can still turn it off in Settings,

When installing macOS Sequoia 15.3, iOS 18.3, or iPadOS 18.3, Apple Intelligence will be turned on automatically on compatible devices, Apple says

Apple has kicked off iOS 18.3, iPadOS 18.3, and MacOS 15.3 with one significant change affecting AI. Since its debut, Apple Intelligence has required the extra step of actually turning it on or opting in. But with the new versions, Apple's AI feature is enabled by default for eliglble devices.

Apple Intelligence will only be enabled by default for hardware that supports it. For the iPhone, that's just the iPhone 15 Pro series, iPhone 16 series, and iPhone 16 Pro series. It goes further back on the iPad and Mac—Apple Intelligence works on any model with an M1 processor or newer.

The iOS 18.3 and iPadOS 18.3 rollout brings a few small improvements, one big change to Apple Intelligence and security updates for iPhone. The first batch of Apple Intelligence features,

Apple has officially released iOS 18.3, a major update that introduces new features, resolves bugs and addresses security concerns. The update, which became available on Jan. 27, can be installed on iPhones starting with the XS model and newer,

Apple has officially rolled out iOS 18.3 and iPadOS 18.3, marking the third significant update to the iOS 18 and iPadOS 18 software introduced last year. This latest update arrives approximately six weeks after the release of iOS 18.

OS 18.3 update is finally here, here’s everything you need to know about the new iPhone OS update and how users can easily download it.