Apple released the first public beta of macOS 27 Golden Gate on 13 July, which means you no longer need a developer account to run next autumn's Mac update today. And this one is more tempting than most: after a year of Liquid Glass complaints, Golden Gate is the release where Apple quietly walks a lot of it back.
Here's what's new, which Macs can run it, how to install it without wrecking your week, and whether you should bother.
What's new in macOS Golden Gate
The headline is Siri AI, the rebuilt assistant Apple announced at WWDC in June. On the Mac it doesn't live in a floating window - it's been merged into Spotlight.
"macOS Golden Gate includes the same Siri AI features as iOS 27 and iPadOS 27, but you get to Siri through Spotlight with a Command + Space keyboard shortcut. Siri can search the web to answer questions, look through your personal data like photos, emails, and messages to help you find what you're searching for, and complete actions in and between apps."
- Juli Clover, MacRumors, 13 July 2026
The design story matters just as much. Sidebars sit flush against the window edge again with coloured icons, toolbars are legible bars rather than floating glass, window corners are less aggressively rounded, and there's a new system-wide transparency slider in Settings if Liquid Glass still isn't your thing. Jason Snell, who has been running Golden Gate since WWDC, calls it "an unequivocal improvement over what Tahoe wrought" in his Six Colors first look, and he's blunt about why:
"The fact that there are more design changes in macOS than any of Apple's other 27 updates speaks volumes about how broken many of the Tahoe design decisions were."
Beyond that: Sidecar now supports the iPad's touchscreen rather than just the Apple Pencil - widely read as Apple warming developers up for touchscreen MacBooks. Shortcuts gains Describe a Shortcut, which turns a plain-English sentence into a working automation, plus persistent data storage that syncs across devices. Photos finally gives Shared Albums full-resolution images, improves Clean Up, and adds AI-powered Extend and Spatial Reframe tools. There's even light menu-bar management for notched MacBooks, and Safari can group your tab chaos by topic.
Two warnings before you jump in. Apple's menu-bar changes currently break existing menu-bar utilities until developers update them. And macOS 27 removes AFP support, which ends Time Machine backups to an old Time Capsule after nearly two decades.
Which Macs can run it?
Golden Gate is Apple silicon only - any M1 or later Mac qualifies. If you're still on an Intel Mac, macOS Tahoe is the end of the line, and I've covered what macOS 27 dropping Intel Macs means and what to do about it.
How to install the macOS Golden Gate public beta
The process takes minutes. The caution is the point - this is a beta, and things will break.
Step 1: Back up your Mac. A full Time Machine backup or a clone. Downgrading from macOS 27 usually means erasing the Mac and restoring, so this is your only clean way back to Tahoe.
Step 2: Enrol at beta.apple.com. Sign in at Apple's beta site with your Apple Account and enrol your Mac. It's free, and no developer account is needed.
Step 3: Open Software Update. System Settings > General > Software Update.
Step 4: Enable the macOS 27 beta. Click the info button next to Beta Updates and select the macOS 27 public beta.
Step 5: Download and install. Click Upgrade Now and give it time. Ideally, put the beta on a spare Mac or a separate APFS volume rather than the machine you earn a living on.
Should you install it?
Snell again, after a month on the developer beta:
"But don't be fooled: These are betas, and they will do weird stuff. I have to occasionally reboot my Mac to get things working normally."
My advice: if you have a spare Mac or a separate volume, this is the most tempting public beta in years - the design fixes alone feel like an apology for Tahoe. If your Mac is how you earn a living, wait for the full release in the autumn; Siri AI in particular is a beta inside a beta right now. And if you just want a preview of the new look before committing, see my breakdown of the macOS Golden Gate icons vs Tahoe.