Apple Releases macOS Tahoe 26.5.1 to Fix Shutdown Issue Affecting Enterprise Users on M5 Macs - MacRumors
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Apple Releases macOS Tahoe 26.5.1 to Fix Shutdown Issue Affecting Enterprise Users on M5 Macs

Apple today released macOS Tahoe 26.5.1, a small update to the ‌macOS Tahoe‌ operating system that came out last year. ‌macOS Tahoe‌ 26.5.1 comes three weeks after Apple released ‌macOS Tahoe‌ 26.5.

macOS Tahoe 26 Feature
Mac owners can download the software by opening the System Settings app and then navigating to the Software Updates section.

According to Apple's release notes for the update, ‌macOS Tahoe‌ 26.5.1 addresses an unexpected shutdown issue affecting certain enterprise users on M5 Macs.

This update addresses an issue for enterprise users where Macs with an M5 chip could expectedly shut down when using certain content filtering network extensions.

macOS 27 is right around the corner, with Apple set to unveil the next major macOS update at the WWDC 2026 keynote on Monday, June 8.

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Top Rated Comments

15 hours ago at 10:43 am
This update came up on my M4 MBP.
Score: 8 Votes (Like | Disagree)
14 hours ago at 11:07 am

Is this only for the M5 models? Or did they stop supporting the M4? It's not showing for my M4.
it should be for more macs.

just because they list a fix for 1 thing in release notes for one particular mac doesn't always mean update is just for that mac.

often there are other unlisted fixes applicable to other macs too.
Score: 6 Votes (Like | Disagree)
sw1tcher Avatar
14 hours ago at 11:33 am

I would assume this is only for m5 MacBooks, then? I am not seeing it come up on my m4 mba...
I think it's for anyone who downgraded to macOS 26
Score: 4 Votes (Like | Disagree)
DaveMcM76 Avatar
14 hours ago at 11:26 am

Is this only for the M5 models? Or did they stop supporting the M4? It's not showing for my M4.
Showing on my M1 Mac mini so I'd say it's for at least all Apple Silicon Macs.

Attachment Image
Score: 4 Votes (Like | Disagree)
12 hours ago at 01:10 pm

Holding off this update, only really helps M5 macs.
I would not assume that. The update is showing up for my M1, M2 and M4 Macs.
Score: 3 Votes (Like | Disagree)
Astuces iOS Avatar
13 hours ago at 11:51 am
It better fix the 120hz and the Mission Control bug or I will be angry.
Score: 3 Votes (Like | Disagree)