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macOS Golden Gate 27.0 Beta 3 - What's New?

Status
The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
WilliApple

WilliApple

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Release Date ― 6 July 2026
Build Number ― 26A5378j
Apple Silicon System Firmware Version ― 20457.0.77.0.2
Darwin Kernel Version ― 27.0.0
Change Tracker
Feel free to edit this section to add changes! When adding issues, you are responsible for making sure it gets placed into the right category when future software releases. All issues that are in "New Issues" and "Remaining Issues" will be put into "Untested Issues" on the next release. Any abandoned issues will get dropped the following release.

New Features & Changes
Resolved Issues
New Issues
Remaining Issues
Untested Issues
  • When filling your screen with the App Store, the title of the View may be wider than expected
  • Alarms may not play when your display is asleep for a long period of time (FB10086690)
    • Workaround: Make your display not fall asleep in Settings > Lock Screen > Turn display off on ____ when inactive. You can turn your brightness off.
    • Issue present since macOS 13.0

Additional Notes
  • This is a DEVELOPER BETA! This means that you should install on either a second device or a second volume. This is not currently usable on a day-to-day basis and certain apps may not work. To see those apps, you can check this thread.
  • Updates might not show up in Settings as soon as it releases if you have Rosetta 2 installed. This is due to Apple not releasing Rosetta at the same time as macOS 27 Betas. Please wait up to an hour before you will be able to update.
    • MacBook Air: M1, M2, M3, M4, M5
    • MacBook Pro: M1/M1 Pro/M1 Max, M2/M2 Pro/M2 Max, M3/M3 Pro/M3 Max, M4/M4 Pro/M4 Max, M5/M5 Pro/M5 Max
    • MacBook Neo: A18 Pro
    • Mac mini: M1, M2/M2 Pro, M4/M4 Pro
    • iMac: M1, M3, M4
    • Mac Pro: M2 Ultra
    • Mac Studio: M1 Max/Ultra, M2 Max/Ultra, M3 Ultra, M4 Max
Links
 
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walterpaisley said:
Heads up that siriactiond may decide to use a ton of CPU after you reboot into the new version. I'm seeing it at high usage on two of my machines.
Click to expand...

I also see this sometimes. Although I even disabled Siri. But even more annoying is appstoreagent combined with dasd. I hope it's fixed too.
 
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Wondering if this new build has broken any apps that were working in the previous 2 builds? Always my biggest concern.
 
Chrome/Firefox seems to have difficulty pulling up websites and Discord won't load. Previously, these were working fine. Turning off limit IP address tracking helps temporarily. Safari works fine.

Turns out something changed with the ethernet adapter on my Mac Studio. Not sure what's up, but web pages take a while to load if they load at all. Switching to Wi-Fi fixed it.
 
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southerndoc said:
Chrome/Firefox seems to have difficulty pulling up websites and Discord won't load. Previously, these were working fine. Turning off limit IP address tracking helps temporarily. Safari works fine.

Turns out something changed with the ethernet adapter on my Mac Studio. Not sure what's up, but web pages take a while to load if they load at all. Switching to Wi-Fi fixed it.
Click to expand...
Oh no! This happened to me on a few betas in macOS 26. But it was the opposite - the wifi was giving me issues and the LAN was working fine.
 
MinimeJer05 said:
Oh no! This happened to me on a few betas in macOS 26. But it was the opposite - the wifi was giving me issues and the LAN was working fine.
Click to expand...
I think it's something to do with DHCP. Messing around with it more, making the IPv4 address static seems to have resolved it with my ethernet adapter. The Wi-Fi started acting up shortly after I made that post.

I'm occasionally getting site certificate errors which is weird. I had no issues until upgrading to DB3.

UPDATE: Thought of something while in shower that always is last on my mind. Turns out the culprit was CrowdStrike Falcon's sensor. Uninstalling it seemed to fix everything.
 
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I can't get my iCloud mail account to connect in the Mail app for some reason, tried removing and readding, restarting, etc.
 
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Reactions: srbNYC
This build has performance issues even on an M4 Pro.

- The Weather app has very jerky window resizing and can’t remember its size. It always defaults to the same size.

- The content in the Stocks app disappears when you are resizing the window and refreshes when you release the mouse button.

- The Finder window has random jerkiness when moving windows across the screen. Edit: bit better after rebooting or caching.

- If you have an app with a fully transparent title bar (like a game or an app with a full window canvas) then the Open and Save Finder dialog windows have big glitches all over them. This visual glitch was also in beta 1 and beta 2.

- The Siri app’s microphone button does nothing.
 
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Loaded Beta 3 onto my work MacBook (it's basically my test MacBook at this point). Noticed network drive mapping failed a few times afterwards, but eventually they worked. It would take credentials and then load and timeout.

Confirmed Cisco Secure Client is working fine
 
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