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This fixed it for me. I was in reduced security mode.

Apple Silicon Secure Enclave Disagreement


Sometimes, the local Secure Enclave (which holds your Mac's security keys) gets out of sync with what the beta installer expects. You can force the system to re-verify ownership and security policies:


1 Boot your Mac into Recovery Mode (shut down, then press and hold the Power button).


2 Go to Utilities in the top menu bar and open Startup Security Utility.


3 Ensure your drive is set to Full Security. If it is already on Full Security, toggling it to Reduced Security, rebooting, and then toggling it back to Full Security can force the Secure Enclave to refresh its cryptographic state.
THANK YOU THANK YOU THANK YOU!!!!! @mattpilott - this might work for you too...
 
Not sure how many of you guys use Ultra-wide monitors, but one new feature is

Ultrawide display support.​


Now you can get higher resolutions on ultrawide displays, such as 5K at 120Hz. And your display arrangements stay exactly as you left them, for a seamless experience every time you plug in.

To compare, I have a 57” Samsung Dual-4K. My previous M3 Max handled Dual 4K at 120hz and my M4 Pro also handled at Dual 4K/120hz.

I’m curious how this would change anything
 
I have Mail and Firefox Nightly set to open on boot/login.

Neither started after rebooting just now (although they did start after the reboot the installer did).

I deleted and re-added them both to login items, and they now start as expected.

Two other apps I have in the menu-bar weren't affected.
 
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The icons are barely visible when you set them to clear. Most likely a bug, but just thought I'd share.
Screenshot 2026-06-08 at 5.29.14 PM.png
 
Looks like I got a Dynamic Island in addition to the notch in the menu bar:

View attachment 2636340
Thought it was a problem with iStat Menus at first, but quitting it doesn't fix that. Restarting also didn't help.

Oh well, at least I don't need a MacBook Ultra for the Dynamic Island then!
same issue here as well, no idea what app is causing it, quit everything in activity monitor and its still there

EDIT: Found it. iPhone Mirroring live activities is bugged, disable it in system preferences.
 

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The combination of the blobbier liquid glass buttons and the flat gray sidebars really looks thoroughly gash. I guess I'm going to need to move any buttons out of the sidebar in all of my apps.
 
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Finder, Files & Window Management

  • More consistent window position persistence across external displays
  • Faster browsing and transfers in Files
  • Faster window switching
  • More distinct active windows
  • Show Borders accessibility feature
  • Improved navigation between windows
  • Improved external display support
  • Faster browser performance
  • More responsive app launches
  • Better multi-window handling


Safari

  • Improved power efficiency
  • Faster start page loading
  • Faster JavaScript execution
  • Faster web application performance
  • Smoother animations and graphics
  • More efficient tab handling
  • Better browsing responsiveness
Apple appears to have spent considerable effort optimising Safari.


Mail

  • Improved Top Results
  • Faster message loading
  • Improved list formatting
  • Improved recipient discovery
  • Updated unread badge accuracy
Nothing revolutionary, but several usability improvements.


Photos

  • Keywords for photos and videos
  • Filter photos and videos in Shared Albums
  • Captured By Me collection
  • Custom slideshows
  • Save slideshows as video
  • Save video frame as photo
  • Full-resolution photos and videos in iCloud Shared Albums
  • Album organisation improvements
  • Improved people and pets search
  • Optional presentation menu bar item

Apple Music & Podcasts

  • Refreshed album pages
  • Refreshed artist pages
  • AutoMix transitions
  • Improved streaming reliability
  • Faster playback startup
  • Search within podcast shows
  • Updated video podcast experience

Notes

Probably one of the strongest Mac-specific sections:

  • Copy and paste as Markdown
  • Section links
  • Divider lines
  • Improved PDF reading and editing
  • Better handwriting support
  • Drawing improvements
  • Faster PDF saving
Markdown support alone will make a lot of Mac power users happy, even if we still can't WRITE markdown.


Freeform

  • Dark-mode adaptive canvas
  • Improved board performance
  • Better text editing
  • Drawing improvements
  • Smoother collaboration

Spotlight & Search

  • More relevant Spotlight suggestions
  • Faster shortcut indexing
  • Better search integration across apps

Messages & FaceTime

  • Improved syncing across devices
  • Consolidated Tapback notifications
  • Failed message retry handling
  • Poll support
  • Improved attachment handling
  • Better recipient discovery
  • Dual-camera FaceTime support
  • Better FaceTime quality on poor connections

Accessibility

  • Easier PDF reading with VoiceOver
  • Improved Voice Control
  • Better text recognition in photos and documents
  • Larger text sizes
  • Better accessibility borders
  • Assistive Access improvements
  • Guided Access improvements

Apple Intelligence / Smart Features

  • Natural language route searching
  • Smarter sharing suggestions
  • Better photo search
  • Improved typing suggestions
  • Automatic punctuation improvements
  • Language-aware suggestions
  • Improved reminder categorisation

iCloud & Continuity

  • Improved iCloud collaboration previews
  • Faster access to shared content on iCloud.com
  • Better iCloud sync status visibility
  • Better Find My sharing
  • Improved device handoff
  • Improved AirDrop transfers
  • Better cross-device syncing

Developer / Power User Features

These stood out to me:

  • Copy and paste as Markdown in Notes
  • Search returns more pleasing photos of people and pets (machine-learning improvements)
  • Improved JavaScript performance in Safari
  • Better support for higher refresh rate external displays
  • More display mode options for external monitors
  • Better Bluetooth power management
  • Faster browser-based file operations

Most Interesting Mac Changes

If I were ranking the changes most likely to matter to a Mac user:

  1. Copy and Paste as Markdown in Notes
  2. External display persistence improvements
  3. Higher refresh-rate external display support
  4. Safari performance gains
  5. Improved PDF editing and saving
  6. AutoMix in Apple Music
  7. Better FaceTime quality
  8. Improved iCloud collaboration
  9. More relevant Spotlight suggestions
  10. Better Apple Intelligence-powered search and categorisation
This seems to align with the rumours that this is Apple's Snow Leopard year across the board. Very welcome improvements and some welcome walkbacks to the UI to fine-tune Liquid Glass
 
View attachment 2636423

Dark mode liquid glass menus and toolbar icons are truly awful, regardless of what slider setting you have. Grey washed out backgrounds and jello like blobs.
I severely hope Apple does something about the excessive use of horrible shades of gray both in light and dark mode. Sidebars and toolbars in their current state feel like a regression, which is crazy.
 
Okay so this is a big one:
Screen recording now lets you capture audio and show mouse clicks! (It's buggy right now, ended up with a semi-permanent darkening of my screen somehow).

EDIT: Restart fixed it of course, but just a heads up. Could also have been caused by conflicting screenshot collisions as I tried to screenshot the cmd-shift-5 ui with cmd-shift-4 😛
 
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I severely hope Apple does something about the excessive use of horrible shades of gray both in light and dark mode. Sidebars and toolbars in their current state feel like a regression, which is crazy.
I was hoping for something darker and a bit sharper like the Cursor logo.
 
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Also seeing the same. Was unable to download using `softwareupdate --fetch-full-installer` (it gave some kind of gatekeeper error), and was unable to install using the InstallAssistant.pkg package downloaded directly from Apple (Got some kind of "Failed to personalize software update" error).

I'm guessing they're all stemming from the same issue...but I just don't know what that issue is.
I had similar issues prev. It turned out to be the realtime virus scanning on my Intego app.
 
The Siri app is stupid garbage, **** design like a kid vibe coded it in 3 minutes. I can’t attach files or URLs to any of my prompt requests.

I can’t figure out if I am talking to a modern AI model or the same scripted Siri crap we used for years. It’s behaving like the same old Siri and not a model at all. It does not even know I am using Golden Gate. All it does is hyperlink to FAQs and help docs instead of a true conversational AI.

Also the microphone input. I click on it to speak to Siri. A large black blob appears. It just looks ugly like a black hole has appeared on my monitor. I ask something, Siri responds, but when I want to continue the conversation it does not pick up my voice so I have to click on the keyboard entry icon and type instead. Sometimes a second black blob appears on the screen so now I have two blobs and the floating blob can’t be cancelled.

I don’t yet see improvements to the Siri voices. They are the same options as before.

Edit:


Now the new Siri AI model is working. It seems when I was using it the model had not downloaded yet and Apple has not given the user any information or animation that tells the user the model has to download.

It seems to be an OK model. It can converse and pull information from the web. It’s probably a very censored model to make the autocrats at the EU and CCP happy.
 
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A new bug in Golden Gate.

If you change system appearance (light/dark mode) while an app is open the toolbar and title bar doesn’t update until you relaunch the app.

The same bug can be seen if the app can change its own theme.
 
Can anyone check if they added "photo shuffle" as a wallpaper option? I love how on my iPhone and iPad it uses machine learning to pick pleasing photos from my photo library to use as random wallpapers, and it does a really good job. Hoping it makes it to macOS! I'm hoping that if they've added Image Playground as a wallpaper generator on macOS then maybe they've added Photo Shuffle as well.
 
Not sure how many of you guys use Ultra-wide monitors, but one new feature is

Ultrawide display support.​


Now you can get higher resolutions on ultrawide displays, such as 5K at 120Hz. And your display arrangements stay exactly as you left them, for a seamless experience every time you plug in.

To compare, I have a 57” Samsung Dual-4K. My previous M3 Max handled Dual 4K at 120hz and my M4 Pro also handled at Dual 4K/120hz.

I’m curious how this would change anything
See https://forums.macrumors.com/threads/macos-golden-gate-27-0-beta-1-whats-new.2483502/post-34622146

On my M4 Pro the max scaled resolution is 3360x1418. With macOS 27 I can get up tot 3840x1620. This was a regression with the M4 Pro which they fixed now (M2 Pro goes up to 3840x1620 scaled with Tahoe no problems). For the base M-series it's definitely an improvement, it has never been never able to go higher than 3008x1269.
 
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