iOS 27 Adds LongRunningIntent and Related App Intents APIs for Siri Integrations

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Apple's iOS 27 update expands the App Intents framework with new APIs, including LongRunningIntent, CancellableIntent, EntityCollection, and SyncableEntity, as presented at WWDC26 Session 345. The changes aim to make Siri integrations more resilient to long-running work and keep entities consistent across devices. Previously, the system gave a standard intent only about 30 seconds to finish, which could cause complex tasks like batch photo processing to fail. LongRunningIntent extends background execution time and builds on the progress-reporting infrastructure that has existed since iOS 17.0. The core purpose of App Intents, making app content discoverable to Siri, Spotlight, Shortcuts, and widgets, remains unchanged.

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