Amber Neely:

A new section in the iOS 27 privacy policy shows that Apple has reversed its stance on using customers’ data to train its AI models. Previously, the company assured customers that it had no need for customer data, and would figure out how to make Siri AI work well without it.

Apple maintains that it “takes steps to ensure that personal data is not stored or used by Apple.” But as Heise points out, and Apple has said in the terms of service for a few years now, the audio material may be listened to by Apple employees after anonymization.

[…]

It also admits that data collected may be reviewed by “review personnel.” It is unclear if “review personnel” are Apple employees or a third-party company contracted to read conversation transcripts, as it has historically been.

Chance Miller:

Starting today, when a user enables Siri AI, they will see a setup screen asking whether they want to opt in to “improve Siri and Apple Intelligence,” with two options: “Share Audio and Text” or “Not Now.”

[…]

What’s important to note here is that nothing is changing about the type of data Apple collects if you opt in to this setting. What’s changing is that Apple will now use the data to train and refine its Foundation Models, as well as Siri and Dictation like before.

nunez:

iOS 26 had a toggle you could select to disable all Apple Intelligence features.

That toggle was removed for iOS 27. Every AI feature has to be turned off individually.

Previously:

• Audio Intelligence
• Siri AI Beta
• Siri AI Announced
• Apple Scraping YouTube for AI Training Data
• Apple Intelligence Training Lawsuit
• French Siri Spying Lawsuit
• Radar AI Training
• Tricked Into Installing macOS Update
• Apple Intelligence Enabled Automatically
• Opting Out of Visual Look Up and iCloud Photos
• Opting Out of “Help Apple Improve Search”
• Apple Settles Siri Spying Lawsuit
• Apple Intelligence Privacy Dark Patterns
• Apple Intelligence Training
• Keeping Your Data From Apple Is Harder Than Expected
• Featured Dark Patterns
• Bug Opted Users Back In to Sharing Siri Recordings
• Siri Suggestions and Privacy
• “Lack of Action” on Siri Recordings
• Opting Out of Sharing Siri Audio Recordings
• No Thanks vs. Later

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

Apple (security, no enterprise, no developer, full installer):

This update provides important security fixes and is recommended for all users.

Apple (security, full installer):

This update provides important security fixes and is recommended for all users.

See also: MacRumors, Mr. Macintosh, and Howard Oakley.

Previously:

• macOS 27 Golden Gate
• macOS 26.6.2
• macOS 15.7.9 and 14.8.9

Juli Clover (iOS/iPadOS release notes, security, no enterprise, no developer):

According to Apple’s release notes, iOS 26.7 includes security fixes, but it does not have any other features.

Apple will eventually show iOS 27 as the main update for the iPhone, but that likely won’t happen for a few weeks. Users who want to stay on iOS 26 for the time being can do so by opting for iOS 26.7 instead of iOS 27 .

Mysk:

The iCloud Private Relay bug that leaks the IP isn’t mentioned, although it had been fixed.

Previously:

• iOS 27
• iPadOS 27
• iOS 26.6.2 and iPadOS 26.6.2
• WebKit IP and DNS Leaks Affecting Proxies and Private Relay

Apple (release notes, security, enterprise, developer, full installer, IPSW):

Explore what’s new for macOS 27.

The page is designed in an annoying way that requires sideways scrolling, and there doesn’t seem to be a PDF list of the new features like in previous years.

See also:

• Jason Snell
• Juli Clover
• Marcus Mendes
• William Gallagher
• Mr. Macintosh
• Reddit

Jeff Johnson:

There’s also a DEPRECATION NOTICE at the top of the man page that lists the diskutil replacements for hdiutil subcommands.

Patrick Wardle:

Fixed: launchd no longer supports loading launchd property list files with the quarantine extended attribute.

Dave Nanian:

[Even] though a bootable backup is properly configured to boot, they aren’t showing up as choices in either the startup disk preference pane or the startup picker. (FB24210103, reported quite a while ago, Apple friends.)

Previously:

• Golden Gate Release Candidate
• Preparing to Update to Golden Gate
• macOS 27 Public Beta
• Glow Leopard
• macOS 27 Golden Gate Announced
• macOS Tahoe 26

Apple (release notes, guide, security, enterprise, developer):

Explore what’s new for iOS 27.

See also:

• Juli Clover
• Federico Viticci
• Dan Moren
• Malcolm Owen

Devon Dundee:

The reason you should update your Apple devices today is performance.

Previously:

• iOS 27 Public Beta
• iOS 27 Announced
• iOS 27 “Rave” Update to Clean Up Code
• iOS 26

Apple (release notes, guide, security, enterprise, developer):

Explore what’s new for iPadOS 27.

See also:

• Juli Clover
• Federico Viticci

Previously:

• iPadOS 27 Announced
• iPadOS 26

Apple (release notes, security, developer):

Explore what’s new for watchOS 27.

See also:

• Juli Clover
• John Voorhees

Previously:

• watchOS 27 Announced
• watchOS 26

Update (2026-09-16): Sarah Reichelt:

If anyone like me is struggling to update their Apple Watch, the Install button in the Watch app scrolls almost off the bottom of the screen on my iPhone 17 Pro. You can just see a few orange pixels. Try to tap them and it should work.

Apple (release notes, security, enterprise, developer):

Explore what’s new for visionOS 27.

See also:

• Juli Clover
• Devon Dundee

Previously:

• visionOS 27 Announced
• visionOS 26

Juli Clover (no release notes, security, developer):

tvOS 27 features a redesigned Podcasts app, options for larger text and customizable subtitles, and a more responsive Control Center. AirPlaying to an Apple TV from another Apple device is faster, apps open quicker, and animations are smoother.

tvOS 27 works on the 2nd and 3rd generation Apple TV 4K models, and it drops support for the Apple TV HD and the first-generation Apple TV 4K.

Previously:

• tvOS 27 Announced
• tvOS 26

Juli Clover (no release notes):

HomePod Software 27 adds AirPlay improvements and support for AutoMix when listening to Apple Music.

Ryan Christoffel:

AirPlay improvements may sound like a minor change, but in practice they can make a big difference in connecting quicker than ever to your HomePod. Using the iOS 27 beta, I’ve been pleasantly surprised by how fast and easy it is now to switch playback to and from my iPhone and HomePod.

[…]

There’s no Siri AI available in HomePod 27.

Previously:

• audioOS 26.6
• Siri AI Beta
• audioOS 26

Juli Clover:

The release candidate is the final version of macOS Golden Gate that developers and beta testers will get before the software sees a public launch.

Joe Rossignol (Reddit):

Apple this week announced that macOS 27, also known as macOS Golden Gate, will be released to all users with a compatible Mac on Monday, September 14.

iOS 27, iPadOS 27, watchOS 27, tvOS 27, and visionOS 27 will be released on the same day.

Jeff Johnson:

I would like to note two bugs that I reported during the beta period that remain unfixed in the release candidates, and barring a last minute miraculous reprieve, will remain unfixed in the public releases on Monday. This is disappointing, because I thought the point of the betas was for Apple to fix the bugs found by beta testers. While these two bugs are not destructive—do not involve data loss or security issues, for example—they nonetheless did not exist in iOS 26 and macOS 26, so in this respect, Apple’s updates are making their software worse for users.

[…]

The AppleScript run by the test app requires Automation permission, so macOS shows a permission prompt. […] It actually doesn’t matter whether you select Allow or Don’t Allow! […] Either way, just selecting something in the automation permission prompt seems to trigger the bug, causing macOS to wrongly consider the app to be running in the background.

Paul Kafasis:

Unfortunately, Apple’s forthcoming tvOS 27 and HomePod OS 27 updates contain a critical bug that prevents Apple TVs and HomePods from playing AirPlay streams sent by Airfoil. If your devices update to the OS 27 versions, Airfoil will no longer be able to stream to them.

Ron Elemans:

FB24067183 Changing selection in NSTableView by moving the mouse and holding down left button, does not work anymore[…]

Kevin C:

Font Book has been crashing since beta 4 when resizing the Inspector or Sidebar. This was a further degradation over a related bug in Tahoe. So far it seems specific to Font Book.

Previously:

• Preparing to Update to Golden Gate
• Glow Leopard
• Ventura’s “Open at Login” vs. “Allow in the Background”

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