macOS Sequoia 15.5 - Bug fixes, changes, and more

[WilliApple]

Release Date ― May 12, 2025
Build Number ― 24F74
Apple Silicon System Firmware Version ― 11881.121.1
T2 BridgeOS System Firmware Version ― 22.16.15072.0.0

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New Features & Changes (Found something new? Please press "Edit" on the bottom of this post and add it here)
Resolved Issues
New Issues
(If you are encountering any issues, please press "Edit" on the bottom of this post and add it here)

Remaining Issues
Untested Issues

• 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

• Please know, Memory Management has always been an issue on any OS (not just Apple's). If you believe there is a Memory Leak, please go to the Apple Menu > Restart > Restart to fix it.
• When a new macOS release comes out, all issues automatically go to "Untested Issues" until they are moved by someone. Issues that stay in Untested for 3 releases (beta or smooth) will be removed from all future threads. When there is a new macOS release, please be sure to let us know about the issue's status by moving it to either "Remaining Issues" or "Resolved Issues"
• macOS 15 Sequoia will be installed via a Delta Update in System Settings. Please be aware about this and the update won’t install with an installer.
• macOS 15 is officially supported on the following devices. If your device is not listed below, it has unfortunately been dropped by Apple. Any efforts of trying to get your Mac running macOS 15, including bugs should be discussed in this thread.
  • MacBook Air: Intel 2020, M1, M2, M3, M4
  • MacBook Pro: 2018, 2019, Intel 2020, M1, M1 Pro/M1 Max, M2, M2 Pro/M2 Max, M3/M3 Pro/M3 Max, M4/M4 Pro/M4 Max
  • Mac mini: 2018, M1, M2/M2 Pro, M4/M4 Pro
  • iMac: Pro 2017, 4K 2019, 5K 2019, 5K 2020, M1, M3, M4
  • Mac Pro: 2019, M2 Ultra
  • Mac Studio: M1 Max/Ultra, M2 Max/Ultra, M3 Ultra, M4 Max
• macOS Sequoia 15.5 Release Notes
• macOS Sequoia Overview
• macOS 15 Release Notes
• Apple Security Updates
• Become an Apple Beta Tester
• Full Installer (App Store) (Pending)
• Full Installer (Direct Download)

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Feel free to add in any issues or new features that you have spotted in this release by clicking the "Edit" button below.

 

[cleanton]

Downloading...

 

[Adora]

Full Installer:

https://swcdn.apple.com/content/downloads/51/28/082-44432-A_4NJSZXK8G5/v10fo5dlwd50fja3qbnhj7z9tp1dx41vq2/InstallAssistant.pkg

 

[jdw13]

Happy to see that Apple Intelligence and Siri stayed turned off after update. Too soon do draw any conclusions other than update went smoothly and well.

 

[Adora]

Just finished the update from RC. I used the full installer. Everything went quick and smooth on my M4 Pro Mini. No strange boot screens this time.

 

[Adora]

Happy to see that Apple Intelligence and Siri stayed turned off after update. Too soon do draw any conclusions other than update went smoothly and well.

WiFi and Bluetooth also stayed off. Often WiFi got turned on after an update.

 

[Aquamite]

Is the issue of FaceTime and head tracked Spatial Audio still present?

 

[rebelo]

App Store still listing 15.4. How can we make a bootable USB disk using the .PKG file? The guides are always based on the installation (.app) file.

 

[Aquamite]

This is new! My Apple Studio Display would never show up here. Now it does though with a glitchy icon:

 

[Adora]

App Store still listing 15.4. How can we make a bootable USB disk using the .PKG file? The guides are always based on the installation (.app) file.

Run the package. Then the app file is in the Applications folder.

 

[gilby101]

RAW photo and Quick Look black rectangle bug fixed.

 

[babytomato]

I am no longer able to set a passcode for Screen Time on macOS 15.5, as the button is grey. Anyone having the same issue?

 

[Miles Fu]

I am no longer able to set a passcode for Screen Time on macOS 15.5, as the button is grey. Anyone having the same issue?

I checked and found the same issue

 

[Aquamite]

Is the issue of FaceTime and head tracked Spatial Audio still present?

I can confirm the issue is still present.

 

[toodeep]

The inability to reliably send email when spell-checking before sending, introduced with Sequoia, remains in 15.5 Mail.

 

[kagharaht]

I wonder if its ok to allow the iMac M3 to sleep now and will not suddenly eject SSD drives...

 

[Adora]

I am no longer able to set a passcode for Screen Time on macOS 15.5, as the button is grey. Anyone having the same issue?

After turning on "App & Website Activity" on top in the menu I am able to set a Passcode. Before doing that the slider was greyed out. And the slider to turn off "App & Website Activity" is now there, it's not at the bottom. It recommends to create another account that is not Admin. I never use this and will turned it of again, so I just tested it with my standard Admin account.