Apple (xip, downloads):

Xcode 27 includes Swift 6.4 and SDKs for iOS 27, iPadOS 27, tvOS 27, watchOS 27, macOS 27, and visionOS 27. Xcode 27 supports on-device debugging in iOS 17 and later, tvOS 17 and later, watchOS 10 and later, and visionOS. Xcode 27 requires a Mac running macOS Tahoe 26.6 or later.

Peter Witham:

Is this new in Xcode 27? Pretty sure it as and I approve whole heartedly! I really hate setting up Xcode settings more than once.

Christian Beer:

Building with Xcode 27 doesn’t work because of some intransparent XCStrings error… and I even can’t check with Xcode 26 anymore because Apple decided to not let me run it on macOS 27…

Steven Woolgar:

After all these years Apple has finally broken cmd-e in Xcode 27.

Previously:

• iPhone Duo
• Ending the Golden Era for Backward-Compatible Apps
• Xcode 26.6
• Xcode 27’s Device Hub
• Swift 6.4
• Xcode 27 Announced

Craig Hockenberry:

It looks like Xcode 27.1 is needed to test the iPhone Duo resizability - and that hasn’t been uploaded yet.

Jordan Morgan:

Cupertino and Friends™️ dropped six new videos over developing, designing, and crafting great apps for the nascent device:

1. Design for iPhone Duo
2. Prepare your app for iPhone Duo
3. Raise the bar with iPhone Duo
4. Strike a pose with adaptive layouts on iPhone Duo
5. Leverage multiple displays and scenes on iPhone Duo
6. Build a great camera experience for iPhone Duo

Nathan Manceaux-Panot:

In the Duo dev video, they describe how text buttons can’t be moved to the new vertical sidebar, as opposed to icon buttons.

I wonder if that’s one of the reasons Liquid Glass pushed hard for icon buttons, even though these are harder to understand; they make the vertical layout possible at all.

Nico Reese:

Totally confusing to me how the toolbar is ordered completely different between both modes here.

Dennis Oberhoff:

I think the problem with the iPhone Duo for developers is mostly that it does not create any new opportunities in the form of a new market or a new audience.

Previously:

• iPhone Duo
• SwiftUI Toolbars