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

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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

X
xpxp2002
33 minutes ago at 10:43 am
This update came up on my M4 MBP.
Score: 2 Votes (Like | Disagree)
T
tywebb13
33 minutes ago at 10:43 am
ipsw:

https://updates.cdn-apple.com/2026SpringFCS/fullrestores/122-88870/E47EBB85-45F2-4E3C-B9E7-6FF7868C2FBA/UniversalMac_26.5.1_25F80_Restore.ipsw

full installer:

https://swcdn.apple.com/content/downloads/22/07/122-84023-A_RQPL3GX2L6/l6vt7agjz206oaiyhvc0a4wupeffjk36st/InstallAssistant.pkg
Score: 2 Votes (Like | Disagree)
I
Icelus
8 minutes ago at 11:08 am
Sounds a lot like a fix in 26.5

Resolved an issue where MacBook Air with M5 and MacBook Pro with M5 Pro or M5 Max restarted unexpectedly when using some content filter extensions.
https://support.apple.com/en-us/124963
Score: 1 Votes (Like | Disagree)
T
tywebb13
8 minutes 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: 1 Votes (Like | Disagree)
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