Xcode 26.6 Release Notes
Update your apps to use new features, and test your apps against API changes.
Overview
Xcode 26.6 includes Swift 6.3 and SDKs for iOS 26.5, iPadOS 26.5, tvOS 26.5, watchOS 26.5, macOS 26.5, and visionOS 26.5. Xcode 26.6 supports on-device debugging in iOS 15 and later, tvOS 15 and later, watchOS 8 and later, and visionOS. Xcode 26.6 requires a Mac running macOS Tahoe 26.2 or later.
Coding Intelligence
New Features
Google Gemini is now available in the coding assistant. (171990272)
Xcode adds support for the Agent Client protocol. (178294840)
The Preview Snapshot MCP tool can now render variants such as light/dark appearance, portrait/landscape orientation, and various type size overrides. (178831772)
Resolved Issues
Fixed an issue where the buttons in the Coding Tools popovers would not work. (168956652)
Fixed a crash when closing a window during an active agent turn. (174186260)
Fixed a crash during agent file operations involving non-absolute paths. (174752919)
Fixed: Buttons in the Coding Assistant’s prompt area now use more accessible labels and descriptions. (177462284)
Fixed VoiceOver getting trapped in the Coding Assistant prompt area. (177462397)
Fixed: Buttons in the Coding Assistant’s prompt area now use more accessible labels and descriptions. (177462492)
Fixed a bug that could cause Xcode to hang indefinitely when an agent asked the user a question. (177989242)
Fixed: If a deep link targeting the new beta is invoked on a system where an older version is set as the active developer tool, the link will be claimed by the older installation rather than the beta. (179126594)
Organizer
New Features
Launch Time similar-app goals have been refined for improved accuracy, establishing new baselines. (177355331)