- June 5-9: The 2017 Worldwide Developers Conference is held in San Jose, California. Announcements included iOS 11, macOS High Sierra, tvOS 11, and watchOS 4.
- September 19: iOS 11, tvOS 11, and watchOS 4 are released to the public.
- September 25: macOS High Sierra is released.
- November 17: The Apple Park Visitor Center is opened to the public.