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macOS Tahoe 26.1 - Bug fixes, changes, and more

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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

macrumors 65816
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Feb 19, 2022
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Release Date ― November 3, 2025
Build Number ― 25B78
Apple Silicon System Firmware Version ― 13822.41.1
T2 BridgeOS System Firmware Version ― Pending
New Features & Changes (Found something new? Please press "Edit" on the bottom of this post and add it here)
Resolved Issues
  • External Hard Drives will show the icon used in Sequoia
New Issues
(If you are encountering any issues, please press "Edit" on the bottom of this post and add it here)
Remaining 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
Untested Issues
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 26 Tahoe 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 26 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 26, including bugs should be discussed in this thread.
    • MacBook Air: M1, M2, M3, M4
    • MacBook Pro: 2019 (16 Inch only), Intel 2020 (4 thunderbolt port only), M1, M1 Pro/M1 Max, M2, M2 Pro/M2 Max, M3/M3 Pro/M3 Max, M4/M4 Pro/M4 Max
    • Mac mini: M1, M2/M2 Pro, M4/M4 Pro
    • iMac: 5K 2020, M1, M3, M4
    • Mac Pro: 2019, M2 Ultra
    • Mac Studio: M1 Max/Ultra, M2 Max/Ultra, M3 Ultra, M4 Max
  • macOS Tahoe 26.0 Release Notes
  • macOS Tahoe Overview
  • Apple Security Updates
  • Become an Apple Beta Tester
  • Full Installer (Direct Download)
 
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Seems this is the only one that retained the same build number as the RC, which isn't true for iOS, iPadOS and WatchOS.

EDIT: it didn’t. I see it has been updated.
 
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SnowCrocodile said:
It is not showing up for me, on M2 Air. I have Betas off.
Click to expand...
Not showing up for me either yet. Mac Studio M2.

I also have Betas off. I turned Betas on just to see if it would show up and it did. Turned Beta off and now nothing.

IOS 26.1 came through on my iPhone no problem.

I'll keep refreshing...
 
Well they haven't fixed the annoying as **** Reminders bug. If you're in the Scheduled view and you type entries quickly as in "entry 1" [enter] "entry 2" [enter] "entry 3" etc, when you hit enter it accepts 1-2 characters from the next entry before it moves down because it's doing a pointless animation.
 
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Still when using iPhone mirroring, checking App Store updates on iPhone using W fingers swipe it doesn’t alway work, takes ages to activate
 
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I'm on the last RC (25B77). (25B78) is not showing up, so I'm downloading the full installer
Scratch Head.gif


Edit - I used the Link above and downloaded the installer, but that Installer did not work for me.

I ended up using this terminal command:

softwareupdate --fetch-full-installer --full-installer-version 26.1

That worked fine

Lou
 
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Anyone else have their wallpaper randomly disappearing since 26.1? For me it happens when I have my Studio Display connected to my laptop. It'll be fine until I lock the computer for awhile and come back, then the Studio Display (which is set as the main display) has a black background (the wallpaper on the laptop is still there). All the widgets and desktop icons work, there's just no wallpaper.

And yes, the "show on all spaces" toggle is checked.
 
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