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Apple 27 Compatibility

Axint tracks the current iOS, iPadOS, macOS, visionOS, SwiftUI, Foundation Models, CoreAI, App Intents, UIKit, Background Assets, and Xcode 27 changes that can affect generated or existing projects.

This page describes implemented checks. It is not a substitute for compiling and testing with the matching Apple SDK.

iOS and iPadOS 27 beta 3

Implemented source checks:

Area Axint behavior
@State macro Warns when declaration-site initialization conflicts with assignment in init, or an extension delegates to a synthesized initializer the macro can disable.
SwiftUI documents Flags FileDocument, ReferenceFileDocument, and nonisolated reader/writer requirements.
TabView Warns when a selected TabView contains an explicitly hidden tab path.
Text selection Warns when .textSelection(.enabled) is adjacent to a competing .gesture(...) without a high-priority policy.
Toolbar minimization Renames .toolbarMinimizeBehavior(...) to .toolbarMinimizationBehavior(...).
Text fields Rewrites soft-deprecated square/rounded border styles to .bordered.
Foundation Models Flags PrivateCloudComputeLanguageModel code with no explicit sampling mode.
On Demand Resources Flags NSBundleResourceRequest and points to Background Assets.

Tracked release-note risks that require runtime or integration proof:

  • Fitness might not surface workout-audio RelevantEntities.
  • Shortcuts "Describe a change" can discard intents using Duration or LPLinkMetadata.
  • Shortcuts Use Model can fail for some on-device output types.
  • Siri can ignore custom map schema values.
  • Siri call starts can fail for CallKit apps using phone.startCall.
  • Siri can choose the wrong OpenIntent or system.open path when entity targets are ambiguous.
  • CoreAI models converted with coreai-torch 0.4.0 need reconversion with 0.4.1 or newer.
  • CoreAI .aimodelc artifacts built with Xcode 27 beta 2 or earlier need recompilation with beta 3.

The earlier Private Cloud Compute simulator failure is marked resolved in Apple's beta 3 release-note data. Axint no longer emits a physical-device-only workaround for that issue.

Xcode 27 beta 3

Axint exposes compatibility checks for:

  • removed -ld_classic linker flags
  • duplicate Clang module names visible to one Swift dependency scan
  • Interface Builder's simulator-mode opt-out on build servers
  • Swift 6.4 compatibility canaries
  • bounded swift test --maximum-repetitions ... --repeat-until ... proof

CI keeps a strict stable-Xcode sandbox and a non-blocking Xcode 27 beta lane. The beta lane becomes required only after the SDK is final and the hosted image is consistently available.

App Store Connect API 4.4.1

The public API detects:

  • deprecated v1 in-app purchase, subscription, and subscription-group metadata resources
  • commerce review submissions that still reference an unversioned relationship
  • missing socialMedia and socialMediaAgeRestricted age-rating attributes

Use analyzeAppStoreConnect441Request(...) from @axint/compiler.

Verification

npm test
npm run benchmark:brownfield:check
npm run mcp:production:check
npx tsx scripts/wwdc-diff.ts --snapshot

Authoritative sources: