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macOS 27 Golden Gate beta 5 now available to developers

Apple has released macOS 27 Golden Gate beta 5 (build 26A5406e) to developers, continuing its beta rollout ahead of the official launch later this year. The update introduces the new Siri app, an AI-powered Shortcuts app with natural-language prompts, and a prompt-based Safari extension builder, while reverting to fixed-radius window corners. Developers can install the beta via System Settings > Software Update.

read2 min views1 publishedAug 10, 2026
macOS 27 Golden Gate beta 5 now available to developers
Image: 9To5Mac (auto-discovered)

Continuing Apple’s beta rollouts ahead of the official launch of macOS 27 Golden Gate later this year, Apple has now released the fifth beta of the OS to developers. Here’s what to expect.

Apple rolls out macOS 27 beta 5 #

Three weeks ago, Apple released macOS 27 Golden Gate beta 4 and, just a couple of days later, its corresponding public beta.

Now, the company is rolling out macOS Golden Gate beta 5, continuing its push to fix bugs and performance issues as it prepares for the official release later this year.

macOS 27 Golden Gate introduces the new Siri app, alongside the revamped Siri AI. It also features the new AI-powered Shortcuts app, which accepts natural-language prompts to create shortcuts, as well as a prompt-based Safari extension builder.

Additionally, macOS 27 Golden Gate introduces new Golden Gate-themed wallpapers and screensavers, while reverting to fixed-radius corners for windows and apps. That reverses a change made in macOS 26, which adjusted corner radii based on the contents of each window’s or app’s menu bar.

The build version for macOS 27 Golden Gate beta 5 is 26A5406e. We are digging through the new beta and will report back with what we find.

Installing the macOS 27 Golden Gate beta #

Here’s [how to install](https://developer.apple.com/support/install-beta/#macos-beta) the macOS 27 Golden Gate developer beta 5:

[Back up](https://support.apple.com/en-gb/102307)your Mac- Open System Settings
  • Go to General ⇾ Software Update
  • Click the ‘i’ icon next to Beta Updates
  • From the dropdown menu in the top-right, select the macOS Developer Golden Gate Beta
  • Hit ‘Done’

Did you spot anything new in today’s macOS 27 Golden Gate beta? Let us know in the comments.

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