ZDNET's key takeaways

The MacOS 27 public beta is available to download now.
Only compatible Apple Silicon Macs support the update.
Back up your Mac before installing the beta software.

At WWDC 2026, Apple announced MacOS 27 Golden Gate, the newest operating system for MacBooks, scheduled to launch this fall. It focuses primarily on performance gains and visual design refinements, with the standout feature being a redesigned and more capable Siri.

You can launch Siri through its dedicated app, and the AI draws from content on your Mac to handle personalized queries in natural language by reviewing files, emails, and messages.

We received early looks at MacOS 27 Golden Gate with the developer beta earlier this year, and it is now open to the public. Anyone can download the new OS to try the updated features, though some elements may remain incomplete, buggy, or slower than expected.

While the public beta tends to offer greater stability than prior releases, avoid installing it on your primary machine. Always back up your data ahead of any major system updates.

How to install the MacOS 27 public beta

1. Determine if your Mac is eligible

Golden Gate ends Apple's support for Intel-based Macs, so you need at minimum a device with Apple Silicon. Compatible models include the following:

MacBook Air M1 and later
MacBook Pro M1
MacBook Neo
iMac M1 and later
Mac mini M1 and later
Mac Studio M1 and later
Mac Pro M2/2023 and later

2. Sign up as an Apple beta tester

Visit Apple's beta software program and register with your Apple account. The public beta requires no fee and targets early adopters seeking initial access to the software. Participants are expected to share feedback through the Feedback Assistant app at any time.

3. Download the beta

After registration, enable beta updates on your Mac by navigating to System Settings > General > Software Update and selecting the (i) icon next to Beta Updates.

In the resulting window, open the Beta Updates menu and choose MacOS Public Beta.

Select Done followed by Update Now.

What should I do before installing the MacOS 27 public beta?

Join the Apple Beta program to access the newest beta versions of MacOS. Prior to downloading any beta operating system, keep these points in mind:

Back up your device and personal information.
Avoid installing beta software on your everyday Mac, as issues and glitches may persist.
The beta exists for developers and early adopters to evaluate new features and provide input for MacOS improvements.

When will MacOS 27 be released?

Apple introduced the MacOS 27 developer beta at WWDC 2026 and the public beta in mid-July. Based on prior patterns, the full release of MacOS 27 is expected in September after the iPhone event where new hardware is unveiled.

Which Macs are compatible with MacOS 27?

A Mac with Apple Silicon is required, so any model featuring an M1 chip or newer qualifies:

MacBook Air M1 and later
MacBook Pro M1
MacBook Neo
iMac M1 and later
Mac mini M1 and later
Mac Studio M1 and later
Mac Pro M2/2023 and later

How do I install the MacOS 27 public beta version?

Go to System Settings > General > Software Update and click the (i) icon beside Beta Updates. Select the MacOS 27 Public Beta option.

How do I submit feedback to Apple?

The MacOS public beta includes the Feedback Assistant app, accessible from the Dock. Use it to report problems or share comments on any aspect of the OS directly with Apple.

How do I install iOS 27 when it is available?

The public release of iOS 27 is anticipated in September. iPhone users can upgrade once it becomes available, subject to carrier, region, and local rules.

Open Settings on your iPhone and choose General.
Under General, select Software Update. The option to download iOS 27 appears here when ready for your device.
Agree to the download and installation, then allow your iPhone to complete the process.