Month: April 2025

macOS Sequoia 15.4.1 Update Everything You Need to Know!

macOS Sequoia 15.4.1 Update is now Available!

UPDATED: 4/17/25

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

Apple just dropped the 5th minor release for Sequoia, macOS Sequoia 15.4.1 Update! Let’s jump in and find out what’s new.

This update is focused on security and fixing a macOS update and upgrade issue that was causing user to be unable to install 15.4.

Security updates note that 2 vulnerabilities have been patched: “Apple is aware of a report that this issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on iOS.“

OpenCore Legacy Patcher for Unsupported Macs

OCLP 2.3.2 & macOS Sequoia 15.4.1 Update: = 2013 Mac Pro & 2011 17″ MBPro

Kernel Debug Kit (KDK) Status: = Still on 15.4 … waiting
https://github.com/dortania/KdkSupportPkg/releases

MetallibSupportPkg Status: = MetallibSupportPkg-15.4.1-24E263.pkg
https://github.com/dortania/MetallibSupportPkg/releases

macOS Sequoia Patch Notes Summary

  • 1. New Features/Improvements – 0
  • 2. Operating System Bug Fixes – 0
  • 3. Security Fixes – 2
  • 4. Enterprise Changes – 1
  • 5. Safari Security (Webkit) – 0
  • 6. Full installer & Apple Silicon IPSW – Full installer InstallerAssistant.pkg & IPSW Apple Silicon Restore Files released!

Full Apple Update Release list

  1. Sequoia 15.4.1 (24E263) – NEW!
  2. Sonoma 14.7.5 (23H527)
  3. Ventura 13.7.5 (22H527)
  4. iOS 18.4.1 (22E252) – NEW!
  5. iPadOS 18.4.1 (22E252) – NEW!
  6. iOS 17.7.6 (21H423)
  7. iOS 16.7.11 (20H360)
  8. iOS 15.8.4 (19H390)
  9. homePodOS 18.4 (22L261) – NEW!
  10. tvOS 18.4.1 (22L261) – NEW!
  11. visionOS 2.4.1 (22O251) – NEW!
  12. watchOS – 11.4 (22T251)

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Table of Contents

  • 1. macOS Sequoia Apple Links
  • 2. macOS Sequoia Final Release History
  • 3. macOS Sequoia Full Installer.app
  • 4. Apple Silicon macOS Sequoia IPSW Restore file Database
  • 5. macOS Sequoia Update sizes
  • 6. Apple Silicon System Firmware Version
  • 7. Apple Silicon OS loader Version (iBoot)
  • 8. Intel T2 BridgeOS Update
  • 9. Intel T2 Firmware Update
  • 10. Safari Update
  • 11. What’s new for enterprise in macOS Sequoia
  • 12. Security Content of macOS Sequoia
  • 13. macOS Sequoia Release Notes / Patch Notes / Changes

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