# macOS 27 Golden Gate developer beta 6 now available to developers

> Source: <https://9to5mac.com/2026/08/17/macos-27-golden-gate-developer-beta-6-now-available-to-developers/>
> Published: 2026-08-17 17:19:01+00:00

After a rare three-week hiatus between macOS developer betas 4 and 5, Apple has now rolled out beta 6 just a week after last Monday’s build. Here’s what to expect.

## Apple rolls out macOS 27 developer beta 6

With the final stretch before its official release fast approaching, Apple is now rolling out macOS 27 Golden Gate beta 6 to all developers.

Last week, [beta 5](https://9to5mac.com/2026/08/10/macos-27-golden-gate-beta-5-now-available-to-developers/) introduced new app icons for several apps, including Siri, Chess, and Safari, but didn’t introduce any other relevant features (or bugs, for that matter).

macOS 27 Golden Gate introduces a dedicated Siri app, unifies corner radii across windows and apps, and adds AI-powered features to Shortcuts and Safari, allowing users to create extensions and automations with simple prompts.

The system also introduces a new pull-to-refresh gesture in Safari, which many see as an early sign that Apple is making macOS more touch-friendly ahead of the rumored touchscreen MacBook Pros.

macOS 27 Golden Gate also revamps the iPhone Mirroring app, allowing users to resize its window to different aspect ratios, a change similarly seen as foreshadowing the rumored foldable iPhone Ultra, which is expected to be announced next month.

The release build for macOS 27 Golden Gate is 26A5416b.

## 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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