Quick answer: macOS 27 Golden Gate is a free update released on 14 September 2026 for every Mac with Apple silicon, from 2020’s M1 models onward. Intel Macs aren’t supported. With the first bug-fix release (27.0.1) out since late September, most people can update now after making a backup.
Golden Gate’s headline feature is Siri AI, a rebuilt Siri powered by Apple Intelligence. It’s still labelled beta and starts in English only. The rest of the update is a mix of design polish, speed improvements and smaller features in Safari, Photos and Passwords.
Here’s what you need to know before you click Upgrade.
Which Macs can run macOS 27?
Apple’s compatibility page lists these models as supported:
- MacBook Air (M1, 2020 and newer)
- MacBook Pro (M1, 2020 and newer)
- MacBook Neo (A18 Pro)
- iMac (M1, 2021 and newer)
- Mac mini (M1, 2020 and newer)
- Mac Studio (2022 and newer)
- Mac Pro (2023)
In short, if your Mac has an M-series chip, or it’s the A18 Pro-powered MacBook Neo, you’re covered. To check, open the Apple menu and choose About This Mac. Look for “Chip” followed by an Apple chip name. If you see “Processor” and an Intel model instead, your Mac can’t install macOS 27.
Intel Mac owners can keep using their current version of macOS and its security updates while they last. Apple says on the compatibility page that an incompatible Mac might be able to install an earlier version of macOS instead.
What’s new in macOS 27 Golden Gate?
According to Apple’s macOS page and 9to5Mac’s launch coverage, these are the changes most people will notice:
Siri AI and a new Siri app
Siri can now hold more natural conversations, understand personal context and take actions inside apps. A dedicated Siri app keeps your conversations together across devices. Apple labels Siri AI as beta and available in English to start.
Apple Intelligence in everyday apps
Photos gains editing tools called Spatial Reframing, Extend and Clean Up. Shortcuts can build a shortcut from a plain-English description, according to 9to5Mac, and Calendar can create an event from a description.
Design and speed
Apple’s Liquid Glass look gets better contrast and readability, plus a slider to customise how glassy it appears. Apple also says AirDrop transfers, network file browsing and Safari page loading are faster, and Mail and Spotlight search results are better ranked.
Safari and Passwords
Safari adds tab grouping and a “Notify Me” option that watches a page for changes. The Passwords app is getting automatic fixes for compromised passwords, which Apple marks as “coming soon.”
What are the catches?
A few, and they’re worth knowing before you expect the full Siri AI experience:
- Beta and English first. Siri AI starts in English. TechRepublic reports that French, Japanese, Korean, Portuguese and Spanish are due in October.
- Usage limits. Apple’s footnotes say daily limits apply to some features, including Siri AI, photo editing, Image Playground and cloud-based Shortcuts. Apple also says paid access for expanded use is planned. It hasn’t announced pricing.
- Some features need newer hardware. For example, Apple lists customisable voice options only for Macs with M3 or later and 12GB or more of unified memory.
- Region limits. TechRepublic reports Siri AI isn’t available in mainland China.
Older M1 and M2 Macs still get the update and most of its features, but don’t expect every AI extra. If you’re shopping for a Mac and want the full set, more memory matters. Our guide to how much RAM you need in 2026 explains why.
Should you update now or wait?
For most people, updating now is fine. TechRepublic notes that Apple shipped the first bug-fix release, macOS 27.0.1, on 28 September 2026. The early “.0” problems that make people nervous are usually what that release targets.
It’s sensible to wait a little longer if:
- You rely on specialised software for work (audio plug-ins, design tools, VPN or security apps). Check the developer’s site for macOS 27 support first.
- You use older Intel-only apps. TechRepublic reports this is the last macOS release with full Rosetta support for those apps, so the clock is ticking on them.
- Your Mac is low on storage. Major upgrades need plenty of free space to install.
How to update to macOS 27 safely
- Back up first. Apple’s backup guide recommends Time Machine with an external drive, or iCloud for photos and documents.
- Free up space if your disk is nearly full. Our guide to freeing up storage on a Mac covers the quickest wins.
- Plug in your MacBook’s charger and connect to a reliable Wi-Fi network.
- Open the Apple menu, then System Settings > General > Software Update, as described in Apple’s upgrade guide.
- Wait for it to check, then select Upgrade Now for macOS 27 and follow the prompts.
- Leave the Mac alone while it restarts. It may restart more than once.
macOS 27 not showing up in Software Update?
If you don’t see the upgrade, work through these checks:
- Confirm your Mac is compatible. Intel Macs won’t be offered macOS 27 at all.
- Install smaller updates first. Software Update sometimes lists a minor update for your current macOS before it offers the major upgrade.
- Check for work or school management. If your Mac is managed by an employer or school, IT may delay major upgrades on purpose.
- Restart and check again. A simple restart often clears a stuck Software Update screen.
If the download fails partway, the usual cause is a lack of free space or an unstable connection. Clear space, switch to a stronger Wi-Fi network and try again.
Frequently asked questions
Is macOS 27 free?
Yes. Like every macOS release in recent years, Golden Gate is a free update for compatible Macs.
Does macOS 27 support Intel Macs?
No. Every Mac on Apple’s compatibility list uses Apple silicon or the A18 Pro chip. Intel Macs stay on their current macOS version.
Can I use Siri AI in India?
Apple’s notes say Siri AI starts in English and requires the device language to be set to a supported English variant. Apple’s macOS page doesn’t list individual countries, so check Settings > Apple Intelligence & Siri on your Mac after updating.
Can I go back to macOS 26 if I don’t like it?
Not easily. Downgrading usually means erasing your Mac and restoring from a backup made before the upgrade. That’s another good reason to back up first.
More Mac, Windows and laptop guides are in our Computing section.