Apple announced on November 3, 2026 that its Siri AI Developer Preview is open to all developers through the iOS 27.3, iPadOS 27.3, macOS 27.3, and visionOS 27.3 betas. Apps can expose custom content and actions through App Intents, allowing Siri AI to handle requests such as checking deliveries, booking reservations, and placing orders. The opening extends Siri AI beyond actions and data that fit Apple's system-defined app schemas. Integrations can draw on personal-context understanding and…