When installing macOS Sequoia 15.3, Apple Intelligence will be turned on automatically on compatible machines, Apple says in the developer release notes for the update.With macOS Sequoia 15.1 and macOS Sequoia 15.2, Apple Intelligence was opt-in rather than opt-out, and users who wanted the feature needed to turn it on in the Settings app.Going forward, it will be enabled by default, and Mac users who do not want to use the feature will need to turn it off.
macOS Sequoia 15.3 also brings Genmoji to the Mac for the first time, so Mac users will be able to create custom emoji characters after installing the update.Apple's full release notes for macOS Sequoia 15.3 are below.Apple provided developers and public beta testers with the release candidate version of macOS Sequoia 15.3 today, which means it will see a release in the near future.
We are expecting the update to launch to the public next week.