Contents

Xcode 27.2 Beta Release Notes

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

Overview

Xcode 27.2 beta includes Swift 6.4 and SDKs for iOS 27.2, iPadOS 27.2, tvOS 27.2, watchOS 27.2, macOS 27.2, and visionOS 27.2. Xcode 27.2 beta supports on-device debugging in iOS 17 and later, tvOS 17 and later, watchOS 10 and later, and visionOS. Xcode 27.2 beta requires a Mac running macOS Tahoe 26.6 or later.

See Xcode Support to learn more about compatible platforms and deployment targets.

General

Known Issues

  • Xcode may crash when using code completion on macOS 27.2 beta. (186939138)

    Workaround: Turn off enhanced code completion ranking with the following preference: defaults write com.apple.dt.Xcode CodeCompletionAssetsToLoad /dev/null

Device Hub

Known Issues

  • Keyboard and mouse inputs to simulators for OS versions before iOS 18.0, tvOS 18.0, watchOS 11.0, and visionOS 2.0 are not accepted. (181945323)

  • After disconnecting a physical device from Device Hub when “Simulate Hardware Keyboard” was in use, the device may remain in “hardware keyboard” mode for up to 2 minutes. This will cause the software keyboard to not appear when selecting a text field. (182553164)

    Workaround: Wait 2 minutes for the condition to clear.

Previews

Resolved Issues

  • Fixed an occasional issue where selecting a preview from a preview group’s thumbnail grid on macOS would fail to 1-up the right preview. (183475595)

  • Fixed: A clearer error is now shown when the selected platform does not support a preview’s content. (185436582)

  • Fixed: The RenderPreview MCP tool now returns the list of available render destinations, and lets the caller specify which destination to use for rendering. (186442676)

Previews & Playgrounds

Resolved Issues

  • Fixed: A clearer error with recovery steps is now shown when previews fail because another user account on this Mac owns the Previews JIT directory. (184564292)

Project Format

New Features

  • Xcode now supports a JSON-based project format (.xcproj) that’s more readable, merge-friendly, and easier for coding agents to edit. Enable it in the file inspector. Projects using .xcproj also open in earlier versions of Xcode 27. Learn more in Updating your Xcode project configuration file format. (184661114)

SDK

Known Issues

  • macOS, watchOS, tvOS, and visionOS SDKs in Xcode 27.2 incorrectly report 27.1 as a valid deployment target. Builds and other functionality may have unexpected behavior if this deployment target is used. Mac Catalyst builds with a 27.1 or 27.2 deployment target may be unable to use newly introduced API. (187160501)

Simulator

Known Issues

  • Some simulator runtimes are not completely deleted when removed, re-appearing after a reboot. (141290052) (FB16083602)

See Also

Xcode 27