Apple Releases macOS Sequoia 15.3.1

[MacRumors]

Apple today released macOS Sequoia 15.3.1, a minor update to the macOS Sequoia operating system that came out last September. macOS 15.3.1 comes a few weeks after the launch of macOS Sequoia 15.3.

Mac users can download the ‌‌‌macOS Sequoia‌‌‌ update through the Software Update section of System Settings. Apple has also released macOS 13.7.4 and macOS 14.7.4 for those who are running older versions of macOS.

According to Apple's release notes, macOS Sequoia 15.3.1 includes important security fixes, and it is recommended for all users.

Article Link: Apple Releases macOS Sequoia 15.3.1

 

[Martyimac]

1+ hours after your post and still not available. It's 11:15 AM MST

 

[turbineseaplane]

Not showing for me yet, also MST

 

[TinyMito]

Nothing here

 

[tywebb13]

build number is 24D70

 

[Apple_Robert]

1+ hours after your post and still not available. It's 11:15 AM MST

I did a remote into my Mac just now, and the update was there. Downloading in progress.

 

[tywebb13]

also coming is

iOS and iPadOS 18.3.1 (22D72)

iPadOS 17.7.5 (21H420)

macOS 14.7.4 (23H420)

macOS 13.7.4 (22H420)

visionOS 2.3.1 (22N900)

watchOS 11.3.1 (22S560)

EDIT: now added the sonoma and ventura new builds

 

[Robin Bonathan]

not seeing mac os update yet but iOS update downloading now.

 

[tywebb13]

ipsw is here: https://updates.cdn-apple.com/2025W...00C303/UniversalMac_15.3.1_24D70_Restore.ipsw

full installer doesn't seem to be up yet but should come soon

EDIT: full installer available now see post #21 for link to full installer

 

[glsillygili]

Heads up you can do

"softwareupdate -l" to refresh the cache and make the update show up.

 

[turbineseaplane]

Heads up you can do

"softwareupdate -l" to refresh the cache and make the update show up.

Didn't work for me..

After running that:

Finding available software
No new software available.

 

[olavsu1]

Heads up you can do

"softwareupdate -l" to refresh the cache and make the update show up.

softwareupdate -l
Software Update Tool

Finding available software
No new software available.

//That's all what I get.

 

[terryvision]

Didn't work for me..

After running that:

Finding available software
No new software available.

"softwareupdate -l" worked for me...


Software Update found the following new or updated software:


* Label: macOS Sequoia 15.3.1-24D70


Title: macOS Sequoia 15.3.1, Version: 15.3.1, Size: 1400282KiB, Recommended: YES, Action: restart,

 

[turbineseaplane]

I'll just check this evening 🙏
Appreciate the tips

 

[kaishockz]

Nothing on my M1 Pro , installing now on Macbook Air M2

 

[OmegaWave]

Finally showed up for me at about 1:40pm eastern time (US)

 

[ID64]

VPN to US LA location. Run softwareupdate -l. If you are in Canada

 

[jsamuels]

Tired of the "nothing showing" posts with each software update. The software takes time to propagate across servers. I'm in Europe and usually have to wait an hour or so.

 

[Realityck]

Security
Impact: A physical attack may disable USB Restricted Mode on a locked device. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

Description: An authorization issue was addressed with improved state management.

CVE-2025-24200: Bill Marczak of The Citizen Lab at The University of Toronto’s Munk School

 

[tywebb13]

sonoma and ventura updates available too - they went straight to public release this time skipping rcs

14.7.4 build 23H420

full installer: https://swcdn.apple.com/content/dow...6y6yrviytxanoevr5ihmz9lb/InstallAssistant.pkg

13.7.4 build 22H420

full installer: https://swcdn.apple.com/content/dow...t0eyfr278z60061tw15x7g40/InstallAssistant.pkg

 

[tywebb13]

sequoia 15.3.1 build 24D70 full installer is finally available too now here: https://swcdn.apple.com/content/dow...mcphudve8mgtxmcjjp0t3cve/InstallAssistant.pkg

 

[Miicat_47]

Heads up you can do

"softwareupdate -l" to refresh the cache and make the update show up.

After running that I got:

Finding available software
No new software available

But then the settings app found the update after pressing CMD+R

 

[olavsu1]

now I see the update...

 

[Polinsky]

Didn't work for me..

After running that:

Finding available software
No new software available.

You're doing it wrong. Worked for me!

 

[ArtOfWarfare]

Security
Impact: A physical attack may disable USB Restricted Mode on a locked device. Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals.

Description: An authorization issue was addressed with improved state management.

CVE-2025-24200: Bill Marczak of The Citizen Lab at The University of Toronto’s Munk School

Ok... so this guy works with important people and discovered it? Or was he himself targeted and discovered he was targeted?