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macOS Sequoia 15.2 Release Notes

Update your apps to use new features, and test your apps against API changes.

Overview

The macOS 15.2 SDK provides support to develop apps for Mac computers running Sequoia 15.2. The SDK comes bundled with Xcode 16.2, available from the Mac App Store. For information on the compatibility requirements for Xcode 16.2, see Xcode 16.2 Release Notes.

Accelerate

Resolved Issues

  • Resolved an issue impacting the accuracy of some linear algebra operations (*lartg). These functions have been restored to their 3.9.1 implementation. (139760965) (FB15782411)

ActivityKit

Resolved Issues

  • Fixed: Resolved an issue where iPhone and iPad apps on Apple Silicon Macs quit unexpectedly if ActivityKit is linked. (100240357)

Authentication Services

Resolved Issues

  • Fixed: iPhone and iPad apps on Apple Silicon Macs might quit unexpectedly if -[ASAuthorizationController performAutoFillAssistedRequests] is invoked. (128153762)

ChatGPT Integration

Resolved Issues

  • Fixed: For devices with MDM profiles, users with anonymous restrictions are unable to sign out. (135440023)

  • Fixed: Image and Document Q&A requests to ChatGPT via Siri might fail if the query doesn’t specify “photo” or “document”. (138352105)

Kernel

Resolved Issues

  • Fixed: Resolved an issue where running Ruby with YJIT enabled causes Mac with M4 chip to kernel panic. (139714575) (FB15774033)

NSWritingToolsCoordinator

Resolved Issues

  • Fixed: NSWritingToolsCoordinator ignores the returned attributed string from writingToolsCoordinator(_:replaceRange:inContext:proposedText:reason:animationParameters:completion:). (139210266)

  • Resolved an issue to properly name NSWritingToolsCoordinator-related enums inside an NSWritingToolsCoordinator extension in Swift-style: TextUpdateReason, State, TextReplacementReason, ContextScope, and TextAnimation. (139356801)

Known Issues

  • NSWritingToolsCoordinator only supports synchronous NSWritingToolsCoordinator.Delegate interfaces, expecting the completion handler to be invoked without escaping the delegate methods. (136769777)

  • The object does not support multiple NSWritingToolsCoordinatorContext elements, and supports only the first element used. Also, it does not support dynamic decorationContainerView. The two optional NSWritingToolsCoordinator.Delegate methods for multiple container support are never called. (137983691)

ScreenCaptureKit

New Features

  • ScreenCaptureKit is available for Catalyst applications. Developers must use the macOS 15.2 SDK or later. (104444076) (FB11957714)

  • The system picking experience now surfaces additional metadata for user selected content, including details on the display, application, and window. (133085308) (FB14629093)

SwiftUI

New Features

  • For macOS apps linked against macOS 15.2 SDK, the onScrollGeometryChange(for:of:action:) modifier can be used with List to post geometry changes for the List-owned scroll view. (118852752)

Resolved Issues

  • Fixed: Compiling in the Swift 6 language mode might cause an @Entry error due to “static property defaultValue is not concurrency-safe because non-‘Sendable’ type”. (133885814)

  • Resolved an issue to improve performance and CPU usage when scrolling ScrollViews and Lists. (137546908)

  • Fixed: Views won’t accept dropped directories if UTType.directory or UTType.fileURL are not in the list of accepted content types for drop. (138158126)

Virtualization

Resolved Issues

  • Fixed: Installation of macOS Sequoia 15.2 Beta in VMs is not available. (137528160)

  • Fixed: Resolved an issue where macOS VM guest running macOS 13.3.1 or earlier fails to boot on a host Mac with M4 chip. (139615567)

WidgetKit

Resolved Issues

  • Fixed: iPhone and iPad apps on Apple Silicon Macs quit unexpectedly if Live Activities API in WidgetKit are linked. (107876557)

See Also

macOS 15