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macOS Golden Gate 27.0 Beta 2 - What’s New?

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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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macOS 27.0 Banners.png

Release Date ― 22 June 2026
Build Number ― 26A5368g
Apple Silicon System Firmware Version ― 20457.0.13.0.11
Darwin Kernel Version ― Darwin Kernel Version 27.0.0: Mon Jun 15 23:01:03 PDT 2026; root:xnu-13432.0.5.501.1~2/RELEASE_ARM64_T8132
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
  • iPhone Mirroring causes a respring or system crash on an iPhone 17 Series phone (FB23070844)
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.
  • If you are encountering a memory management issue (eg. a Memory Leak), please provide what app/process it is coming from (Using Activity Monitor) and what you were doing in that app.
  • macOS 27 will be installed via a Delta Update in System Settings. Please be aware about this, as the update won’t install with an installer.
    • 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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Installing now... waiting to see if this fixes bug that prevents disabling SIP and/or startup security...
 
With limited testing, nothing has stood out as new to me.

Music UI is still awful.

System Settings is still illogical.

Performance is good except for large lists of icons stuttering under the tab pill in Finder. Apple’s been mucking about with transparency for over a quarter of a decade. This should be easy by now.

The UI is still a mix of all of Apple’s designs. I don’t foresee Apple making any big changes. Golden Gate is paralyzed in its current state because the macOS UI is now tied to whatever nonsense is happening with its other operating systems.

Better than Tahoe, worse than Sonoma. Happy to be wrong by official release.
 
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LeVan said:
What bug is that?
Click to expand...
Boot Picker has been rewritten for GG. I have an M2 Ultra Mac Pro with four startup disks; three are on NVME SSDs. Startup Disk only sees the one OS27 disk on the Apple SSD. I also have a Backup OS27 SSD and two OS26 SSDs. Those three bootable disks do not appear in Startup Disk. Nor do they appear under Startup Options at startup.

Lou
 
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flowrider said:
Boot Picker has been rewritten for GG. I have an M2 Ultra Mac Pro with four startup disks; three are on NVME SSDs. Startup Disk only sees the one OS27 disk on the Apple SSD. I also have a Backup OS27 SSD and two OS26 SSDs. Those three bootable disks do not appear in Startup Disk. Nor do they appear under Startup Options at startup.

Lou
Click to expand...
Thanks for that info, looks like they have some work to do.... But on my MBA M2 13" laptop, iy seems very stable for an early beta. I will probably switch over completely once it is released in the fall. For now, my main driver is Sequoia 15.7.8 RC2. Thought there may be an update to that soon.
 
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They added back the shortcuts to applications, files, shortcuts and clipboard to the Siiri AI interface when hitting cmd+space. This restores the unified spotlight/App Library feature introduced in macOS 26.
 
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