macOS Sequoia 15.4 Update Everything You Need to Know!

macOS Sequoia 15.4 Update is now Available!

UPDATED: 4/10/25

This article will be continually updated as new information comes in.

Apple just dropped the 4th major release for Sequoia, macOS Sequoia 15.4 Update! Let’s jump in and find out what’s new.

This update is considered the “Spring Release” because it is the last big update for macOS Sequoia. All focus from Apple will now be on the development of macOS 16. Without a doubt, this is a HUGE update and will take some time to go through! Stay tuned!

IMPORTANT NOTE: The 15.4 update will automatically enable “Download And Install OS Updates”! Be sure to disable this if you don’t want OS updates to automatically download and install. Turning off Auto Updates is REQUIRED for OCLP users!

1. UPDATE: OpenCore Legacy Patcher 2.3.0 was just released and it includes Sequoia 15.4 compatibility!

2. UPDATE 2: OCLP 2.3.1 was released to fix an issue with OCLP Vaulting that affected a few models.

3. UPDATE 3: OCLP 2.3.2 Hotfix released to fix T1 password crashing issue.

Apple just broke 2 records with the Sequoia 15.4 Update!

  • Security Fixes = 131 CVE’s patched
  • Enterprise Fixes = 17 detailed improvements!

OpenCore Legacy Patcher for Unsupported Macs

OCLP 2.3.2 & macOS Sequoia 15.4 Update: = 2013 Mac Pro, 2012 13″ MacBook Pro, 2011 17″ MacBook Pro, 2008 15″ MacBook Pro, 2014 11″ MacBook Air, 2012 Mac mini, 2010 Mac Pro, 2013 15″ MacBook Pro, 2011 27″ iMac & 2015 27″ iMac

Kernel Debug Kit (KDK) Status: = Kernel_Debug_Kit_15.4_build_24E247.dmg
https://github.com/dortania/KdkSupportPkg/releases

MetallibSupportPkg Status: = MetallibSupportPkg-15.4-24E248.pkg
https://github.com/dortania/MetallibSupportPkg/releases

macOS Sequoia Patch Notes Summary

  • 1. New Features/Improvements – 10
  • 2. Operating System Bug Fixes – 9
  • 3. Security Fixes – 131
  • 4. Enterprise Changes – 17!!!
  • 5. Safari Security (Webkit) –
  • 6. Full installer & Apple Silicon IPSW – Full installer InstallerAssistant.pkg & IPSW Apple Silicon Restore Files released!

Full Apple Update Release list

  1. Sequoia 15.4 (24E248)
  2. Sonoma 14.7.5 (23H527)
  3. Ventura 13.7.5 (22H527)
  4. iOS 18.4 (22E240)
  5. iOS 17.7.6 (21H423)
  6. iOS 16.7.11 (20H360)
  7. iOS 15.8.4 (19H390)
  8. audioOS 18.4 (22L255)
  9. tvOS 18.4 (22L255)
  10. visionOS 2.4 (22O238)
  11. watchOS – Waiting

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