Apple released iOS 27, iPadOS 27, macOS 27 Golden Gate, watchOS 27 and tvOS 27 to the public on Monday, 14 September 2026. VisionOS 27 shipped the same day for Vision Pro.
Across the five platforms, Apple has listed more than 250 individual changes. Nobody is reading a list that long, and most of it does not matter to most people. So this is the version that actually matters: what changed, what requires new hardware, and what the fine print quietly takes away.
The one feature tying everything together: Siri AI
Every platform update this year exists partly to carry one feature. Siri has been rebuilt, and Apple is calling the result Siri AI.
It has personal context understanding, broad world knowledge and on-screen awareness, meaning it can see what is currently on your display and act on it. It draws on your messages, emails and photos when relevant. There is now a dedicated Siri app alongside the classic press-and-hold invocation, and conversations sync across devices, so you can start a request on your iPhone and pick it up on your Mac.
Here is where the enthusiasm needs to meet the footnotes, because Apple’s own disclosures are unusually direct this year.
Siri AI requires an iPhone 15 Pro or later to run at all. It launches in English only, specifically Australia, Canada, Ireland, India, New Zealand, South Africa, the UK and the US, with more languages arriving later. It is not available in the EU at launch on iOS, iPadOS or watchOS, tied to Apple’s ongoing regulatory dispute with the European Commission. Notably, macOS is not on that exclusion list, so Mac users in the EU get it while iPhone users do not.
And the part everyone should read twice: Apple has stated that Siri AI is subject to daily usage limits, with expanded access available for a fee in the future.
That is Apple, on the record, confirming that some AI capability will eventually be a paid tier. The most advanced Siri voice model additionally requires a Mac with an M3 chip or later and at least 12GB of RAM, so even within Apple’s own ecosystem the experience will not be uniform.
Read the feature list with that context. A company confident in its AI generally does not lead with usage caps and a future pricing disclosure.
iOS 27: eight changes that matter more than the rest
Camera app changes are the most immediately visible. Visual Intelligence moved into the Camera app itself, accessible through a new Siri Mode you swipe to alongside Photo and Video. Point the camera and ask Siri about what you are looking at directly, without leaving the camera interface.
Photos gained Extend and Reframe tools, which use generative fill to expand an image beyond its original borders or recompose a crop. Image Playground can now generate photorealistic images through a private cloud model, though this is one of the features subject to those daily limits, with iCloud+ subscribers on tiers above the base 50GB plan getting expanded access.
Shortcuts now lets you describe an automation in plain language and have it built for you, which meaningfully lowers the barrier to an app that has always been powerful and always been slightly too fiddly for average users.
A new iPhone Handoff feature lets you switch between two physical iPhones while retaining the same phone number on each. This was buried in a WWDC slide in June with zero explanation and only became clear this week. For anyone juggling a personal and work iPhone, or anyone who just bought an iPhone Duo alongside their existing phone, this is a genuinely practical addition.
The Liquid Glass interface, introduced last year to mixed reactions, has been refined rather than overhauled. Apple says refraction is more uniform and contrast is improved, with sharper, more detailed app icons. If Liquid Glass bothered you in iOS 26, this update softens the complaint without abandoning the design.
HomeKit Secure Video cameras now generate written descriptions of what they capture, useful for reviewing footage without watching it. And NFC reading is faster and more reliable, a small change that matters disproportionately given how much of daily life now runs through tap-to-pay and tap-to-unlock.
iPadOS 27: the iPad keeps closing the gap with the Mac
This is not the flashiest iPad update in years, but it is one of the more useful ones for anyone actually working on the device.
The persistent menu bar introduced last year has been refined into something closer to a genuine desktop menu bar, and it is now optional and persistent rather than something you summon. The app name now displays in the status area, which sounds trivial until you are juggling several floating windows and cannot immediately tell which one is active.
File transfers in the Files app are up to five times faster, according to Apple. Window closing and window switching are both faster too. None of these are individually dramatic, but together they address the single biggest complaint about iPad multitasking since Apple introduced floating windows: that it always felt a step slower than it should.
iPhone apps running on iPad can now be resized, closing one of the odder remaining inconsistencies in the platform. Sidecar, which lets an iPad act as a second display for a Mac, gained expanded touch support.
For anyone who has watched the iPad slowly absorb Mac functionality over the past several years, iPadOS 27 continues that trajectory without a single dramatic leap. It is accumulation, not revolution, and for daily users that accumulation is starting to add up to something that behaves like a real computer.
macOS 27 Golden Gate: a course correction, not a redesign
This is the most interesting update of the five, because it is largely defined by what Apple undid.
Golden Gate reverses several choices from last year’s Tahoe release that drew sustained criticism. Menu bar items no longer display icons by default, walking back a Tahoe change that made menus busier and harder to scan. Window corner radii are now standardised across the system rather than dynamically changing based on a window’s contents, a Tahoe quirk that many users assumed was simply a bug.
Liquid Glass gets the same refinement treatment as on iOS, with stronger contrast and more consistent refraction, plus a new slider in System Settings that lets you adjust how much of the glass effect you actually want, from minimal to fully tinted.
Finder sidebars are more clearly defined, and edge-to-edge sidebars replace some of the floating elements Tahoe introduced. Safari can now automatically group open tabs by topic, a genuinely useful feature for anyone who treats their browser as a second filing system. A pull-to-refresh gesture, borrowed from iOS, now works in Mail, News, Calendar and Safari, and more than a few people have noted this looks a lot like Apple quietly preparing macOS for a touchscreen Mac.
iPhone Mirroring windows are now resizable to different aspect ratios, which is a strange detail to add unless you are anticipating a phone with more than one aspect ratio to mirror. Given the iPhone Duo launched the same week, that timing does not look accidental.
One hardware note that will affect a meaningful number of users: Golden Gate is the first macOS version to drop Intel support entirely. It requires an Apple Silicon Mac, specifically anything with an M-series chip or later, or the A18 Pro in the case of certain devices. Boot Camp has been removed as a result, since it no longer has an Intel processor to run Windows on. Apple has committed to three more years of security updates for Intel Macs still on macOS 26 Tahoe, but Tahoe is now their final feature release.
watchOS 27: the Health Sensing System needs new hardware
The headline watchOS 27 features, particularly the readiness score built from continuous heart rate and HRV sampling, depend on the S11 chip introduced in Watch Series 12 and Ultra 4 this month. If you own an older Apple Watch, updating to watchOS 27 will not bring you the new sensing capabilities, because the hardware simply is not there to generate the data.
watchOS 27 also drops support for a meaningful slice of the installed base. Series 6, Series 7, Series 8, SE 2 and the original Ultra are no longer compatible. Support now starts at Series 9, SE 3, and Ultra 2.
If your Watch is not on that list, this is the year you are permanently off the update train, which is worth knowing before you tap install on anything.
tvOS 27: the quiet one
Apple TV gets the smallest update of the five this year, and Apple is not pretending otherwise.
The Podcasts app has been redesigned. Text size options have expanded for accessibility. Control Center is more responsive, and AirPlay from another Apple device now connects and streams faster. App switching and general animations are smoother throughout. AppleCare coverage details are now viewable directly in Settings, saving a trip to a separate app or website.
None of this changes how you use an Apple TV. All of it makes the existing experience marginally less annoying, which is a reasonable definition of a maintenance release.
What was walked back, and why that matters
The most telling pattern across all five updates is not what is new. It is what Apple reversed.
Menu bar icon clutter, gone. Inconsistent window corners, standardised. The densest parts of the Liquid Glass effect, dialled back with a user-facing control. This is a company responding directly to a year of complaints about last year’s redesign, and doing so without the marketing language usually reserved for admitting a misstep.
That is worth noting for anyone who found iOS 26 or macOS Tahoe visually exhausting. The correction is real, and it did not take Apple long to make it.
Should you update today
iPhone 15 Pro or later: Update for Siri AI alone, keeping in mind the English-only, non-EU, usage-capped reality behind the marketing.
Older supported iPhones: Update for the Camera app changes, Photos tools and general refinement. You lose Siri AI but keep almost everything else.
iPad users who multitask heavily: Update immediately. The menu bar and file transfer improvements are the most concretely useful changes in this entire release cycle for anyone actually working on the device.
Intel Mac owners: You cannot update to Golden Gate at all. Confirm your Mac’s chip before you do anything, since Golden Gate requires Apple Silicon.
Apple Watch Series 6 through 8, SE 2, or original Ultra: watchOS 27 is not available to you. This generation’s software update marks the end of the line for that hardware.
Apple TV owners: Update whenever convenient. Nothing here is urgent, and nothing here breaks anything either.
Next steps worth taking
Back up before updating, as with any major OS release, particularly on Mac where Golden Gate’s Intel cutoff means there is no path back if something goes wrong on unsupported hardware.
Check your region for Siri AI. If you are in the EU, the headline feature of this entire release simply is not there yet on iPhone or iPad, regardless of which device you own.
If you rely on Boot Camp, do not update your Mac yet. Golden Gate removes it permanently, and there is no way to run Windows natively on an Apple Silicon Mac afterward.
Give the interface changes a week before judging them. Several of the most-discussed changes this year are corrections to last year’s design, which means the update is easier to live with than iOS 26 or Tahoe were at launch, not harder.
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