macOS Sequoia 15.2 Update Everything You Need to Know!

macOS Sequoia 15.2 is now Available!

UPDATED: 12/11/24

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

Apple just released the 2nd major release for macOS Sequoia! Let’s jump in and find out what’s new.

Check this out! Apple also released a 2nd version of macOS Sequoia 15.2 (24C2101) that includes information about the 2025 M4 MacBook Air!

This is a HUGE update that is focused around Apple Intelligence features for Apple Silicon Macs 2020 M1 and newer.

This update includes new Apple Intelligence features, including Image Playground, Genmoji, Writing Tools enhancements, seamless support for ChatGPT, and visual intelligence.

Below is my macOS Sequoia 15.2 YouTube Update Video👇

Note: Apple released two release candidate updates. The first one 15.2 (24C98) and RC 2 is (24C100), but then the Public release was bumped again to 15.2 (24C101). Apple also released a document today talking about all the features of macOS Sequoia 15.2 along with iOS 18.2. https://www.apple.com/newsroom/2024/12/apple-intelligence-now-features-image-playground-genmoji-and-more/

OpenCore Legacy Patcher for Unsupported Macs

OCLP 2.2.0 & macOS 15.2: = Testing in progress

Kernel Debug Kit (KDK) Status: Kernel Debug Kit 15.2 build 24C101 https://github.com/dortania/KdkSupportPkg/releases

MetallibSupportPkg Status: = MetallibSupportPkg-15.2-24C100.pkg
https://github.com/dortania/MetallibSupportPkg/releases

macOS Sequoia Patch Notes Summary

  • 1. New Features/Improvements – 15
  • 2. Operating Sytem Bug Fixes – 8
  • 3. Security Fixes – 37
  • 4. Enterprise Changes – 7
  • 5. Safari Security (Webkit) – 5
  • 6. Full installer & Apple Silicon IPSW – Full installer and Apple Silicon IPSW are available for download.

Full Apple Update Release list

  1. Sequoia 15.2 (24C101)
  2. Sonoma 14.7.2 (23H311)
  3. Ventura 13.7.2 (22H313)
  4. iOS & iPadOS 18.2 (22C152)
  5. iOS & iPadOS 17.7.3 (21H312)
  6. watchOS 11.2 (22S101)
  7. homePodOS 18.2 (22K155)
  8. tvOS 18.2 (22K155)
  9. visionOS 2.2 (22N842)

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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

Click “Continue Reading” for the rest of the article.

1. Apple macOS Links

When Apple releases the official macOS Sequoia support links, they will be listed below.

  1. What’s new in the updates for macOS Sequoia – https://support.apple.com/en-us/120283
  2. What’s new for enterprise in macOS Sequoia – https://support.apple.com/en-us/121011
  3. Apple Security Updates Page – https://support.apple.com/en-us/HT201222
  4. macOS Sequoia features page – https://www.apple.com/macos/macos-sequoia/
  5. Platform Security Guide – macOS Rapid Security Response system.
  6. Platform Guide Deployment – What’s new in Apple platform deployment
  7. AppleSeed Notes Link = appleseed.apple.com/
  8. Apple Developer Public Link = developer.apple.com/documentation/macos-release-notes
  9. macOS Deployment References Changes – https://support.apple.com/guide/deployment-reference-macos/document-revision-history-apd04dff7069/web

2. macOS Sequoia 15 Final Release History

  • 5. macOS Sequoia 15.2 (24C101) – 12/11/24
  • 4. macOS Sequoia 15.1.1 (24B91) – 11/19/24
  • 3. macOS Sequoia 15.1 (24B83) – 10/28/24
  • 2. macOS Sequoia 15.0.1 (24A348) – 10/04/24
  • 1. macOS Sequoia 15.0 (24A335) – 9/16/24

3. macOS Sequoia 15 Full Installer.app

Apple has released the full installer for macOS Sequoia. I list all the of the Full installers in the link below.

https://mrmacintosh.com/macos-sequoia-full-installer-database-download-directly-from-apple/

InstallAssistant.pkg = Full download. Installing this package will add the full “Install macOS Sequoia.app” to your applications folder.

4. Apple Silicon macOS Sequoia IPSW Restore file Database

Apple has released the full IPSW restore file of macOS for Apple Silicon M1,M2 & M3 Macs. I keep track of all of them in my Apple Silicon Firmware Database

Get them here –> https://mrmacintosh.com/apple-silicon-m1-full-macos-restore-ipsw-firmware-files-database/

5. macOS Sequoia Update sizes

Sequoia Delta Update

The delta update will automatically change in size for exactly what your macOS version needs.

Full update & Sequoia OCLP Users = 15.25GB was 14.53GB

Apple Silicon Updates

Delta from macOS 15.1.1 with size = 3.63GB

Intel Updates

Delta from macOS 15.1.1 with size = 2.17GB

6. Apple Silicon System Firmware Version

This update has a new firmware update. The version number is reported in System Information under “System Firmware Version“

Apple Silicon Firmware = Updated!

  • 5. macOS Sequoia 15.2 = 11881.61.3
  • 4. macOS Sequoia 15.1.1 = 11881.41.5
  • 3. macOS Sequoia 15.1 = 11881.41.5
  • 2. macOS Sequoia 15.0.1 = 11881.1.1
  • 1. macOS Sequoia 15.0 = 11881.1.1

7. Apple Silicon OS loader Version (iBoot)

OS Loader Version (iBoot) also referred to as “iBoot second-stage loader”, is Apple’s stage 2 bootloader. The OS loader version will be the same as the “System Firmware Version” on the latest OS. On previous versions of macOS Monterey and Big Sur, the OS loader version will be a version behind. Example = Monterey = 7459.121.3 & Big Sur = 6723.140.2

OS Loader version = Updated!

  • 5. macOS Sequoia 15.2 = 11881.61.3
  • 4. macOS Sequoia 15.1.1 = 11881.41.5
  • 3. macOS Sequoia 15.1 = 11881.41.5
  • 2. macOS Sequoia 15.0.1 = 11881.1.1
  • 1. macOS Sequoia 15.0 = 11881.1.1

8. Intel T2 BridgeOS Update

The Version of BridgeOS for your T2 Security Chip (2018-2020 Intel Macs) was updated.

BridgeOS version = Updated!

  • 5. macOS Sequoia 15.2 = 22.16.12093.0.0
  • 4. macOS Sequoia 15.1.1 = 22.16.11072.0.0
  • 3. macOS Sequoia 15.1 = 22.16.11072.0.0
  • 2. macOS Sequoia 15.0.1 = 22.16.11053.5.1,0
  • 1. macOS Sequoia 15.0 = 22.16.11053.5.1,0

9. Intel T2 Firmware Update

The version of firmware for your Mac (2018-2020 Intel Macs) was updated.

Firmware version =

  • 5. macOS Sequoia 15.2 =
  • 4. macOS Sequoia 15.1.1 = 2069.40.2.0.0
  • 3. macOS Sequoia 15.1 = 2069.40.2.0.0
  • 2. macOS Sequoia 15.0.1 = 2069.40.2.0.0
  • 1. macOS Sequoia 15.0 = 2069.40.2.0.0

10. Safari Update

The new version of Safari 18 is included in the macOS 15 update.

Safari = Updated!

  • 5. macOS Sequoia 15.2 = Version 18.2 (20620.1.16.11.8)
  • 4. macOS Sequoia 15.1.1 = Version 18.1.1 (20619.2.8.11.12)
  • 3. macOS Sequoia 15.1 = Version 18.1 (20619.2.8.11.10)
  • 2. macOS Sequoia 15.0.1 = Version 18.0.1 (20619.1.26.31.7)
  • 1. macOS Sequoia 15.0 = Version 18.0 (20619.1.26.31.6)

11. What’s new for Enterprise in macOS 15.2

Enterprise changes in macOS Sequoia

  • MDM can manage Apple Intelligence Integrations including ChatGPT.
  • MDM can restrict Apple Intelligence image generation in Image Playgrounds and other apps.
  • AirPlay MDM payloads can be installed containing a password item with both the DeviceName string required for tvOS 18 and the deprecated DeviceID string used in earlier versions.
  • A new option is available to reset the OpenSSH configuration. Open man apple_ssh_and_fips in Terminal for details.
  • Multi-factor authentication in Safari reliably accepts the PIN for hardware security keys.
  • Improves stability for video conferencing apps and DNS resolution when using the built-in firewall and a content filter extension.
  • Service discovery as part of account-driven enrollment can request the well-known resource from an alternative location specified by the MDM solution linked to Apple School Manager or Apple Business Manager.

https://support.apple.com/en-us/121011

12. Security Content of macOS 15.2

Security vulnerabilities in this Update

Fixes addressed in this update = 37

Safari & Webkit = 5

https://support.apple.com/en-us/100100

13. macOS 15.2 Release Notes

This update introduces new features powered by Apple Intelligence, the personal intelligence system that unlocks powerful new ways to communicate, work, and express yourself, all while protecting your data with an extraordinary step forward for privacy in AI. New features include Image Playground which lets you create delightful, fun images, ChatGPT support integrated right into Siri and Writing Tools, and more. This release also includes enhancements to Photos and Safari, as well as other features, bug fixes, and security updates for your Mac.

Apple Intelligence (Mac with Apple silicon)

Image Playground
• A new app that lets you use concepts, descriptions, and people from your photo library to create fun, playful images in multiple styles
• Swipe through previews and choose from as you add concepts to your playground
• Choose from animation and illustration styles when creating your image
• Create images in Messages and Freeform, as well as third party apps
• Images are synced in your Image Playground library across all your devices with iCloud
ChatGPT support
• ChatGPT from OpenAI can be accessed right from Siri or Writing Tools
• Compose in Writing Tools allows you to create something from scratch with ChatGPT
• Siri can tap into ChatGPT when relevant to provide you an answer
• A ChatGPT account is not required and your requests will be anonymous and won’t be used to train OpenAI’s models
• Sign in with ChatGPT to access your account benefits, and requests will be covered by OpenAI’s data policies
Additional Apple Intelligence features
• Describe your change in Writing Tools allows you to suggest how you’d like something rewritten, for example as a poem
Photos
• Favorites album appears in the Utilities collection in addition to Pinned Collections
• Recently Viewed and Recently Shared album history can be cleared
Safari
• New background images to customize your Safari Start Page
• HTTPS upgrade tries to use secure HTTPS on all websites
• Simplified import and export for history, bookmarks, and passwords

This update also includes the following improvements and bug fixes:
• Share Item Location in Find My helps you locate and recover misplaced items by easily and securely sharing the location of an AirTag or Find My network accessory with trusted third parties, such as airlines
• Natural language search in Apple Music and Apple TV app lets you describe what you’re looking for using any combination of categories like genres, moods, actors, decades, and more
• Favorite Categories in Podcasts allows you to choose your favorite categories and get relevant show recommendations that you can easily access in your Library
• Personalized Search page in Podcasts highlights the most relevant categories and editorially curated collections tailored to you
• Sudoku for News+ Puzzles provided in three difficulty levels and available for News+ subscribers
• Presenter preview lets you choose what to share — an app or your whole screen — before you share it when connecting to an external display or using AirPlay
• Pre-market price quotes in Stocks lets you track NASDAQ and NYSE tickers prior to market open
• Weather in menu bar allows you to get current weather conditions from the menu bar on your Mac and click through to quickly access detailed forecasts

Some features may not be available for all regions, or on all Apple devices.
For detailed information about the security content of this update, please visit: https://support.apple.com/100100

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