AppIntentsTesting is a brand-new integration testing framework that lets developers write XCUITest-based tests to execute App Intents on-device — covering intents, entity queries, and entity chaining — without importing app code or using mocks.
• Runs App Intents through the full production stack (no mocks, no stubs), catching real regressions that unit tests miss
• Tests live in a standard XCUITest bundle, so CI pipelines pick them up automatically with zero extra configuration
• Enables test-driven development for Siri, Shortcuts, and Spotlight integrations by asserting on entity results and intent return values
iOS 27 adds sectioned queries, codable model attributes, ResultsObserver for non-SwiftUI change observation, and HistoryObserver for reacting to persistent history changes in SwiftData.
iOS 27 expands the App Intents framework with RelevantEntities for contextual content surfacing, EntityCollection for high-performance batch parameter handling, SyncableEntity for cross-device Siri continuity, native Duration/PersonNameComponents parameter types, and @UnionValue for multi-type parameters — plus extended intent execution time limits.
USDKit is a new first-party Swift framework introduced in iOS/macOS 27 that brings native USD scene creation, composition, modification, and export capabilities to Apple platform apps, with deep RealityKit and Spatial Preview integration.
Xcode 27 introduces an agentic localization workflow that lets you ask a coding agent to translate your entire app directly inside Xcode, leveraging String Catalog context — including where and how strings are used — to produce accurate, consistent translations across all languages.