macOS Sonoma 14.3 Update (23D56) What’s New?

macOS Sonoma 14.3 is now Available!

UPDATED: 1/23/24

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

Apple just released macOS Sonoma’s 3rd major release update to the public! Let’s jump in and find out what’s new.

macOS Sonoma Patch Notes Summary

  • 1. New Features – 3
  • 2. Security Fixes – 12
  • 3. Enterprise Changes – 4
  • 4. Safari Security (Webkit) – 4
  • 5. Full installer and M1 IPSW – 14.3 Apple Silicon IPSW and full installer pkg’s are now available!
  • 6. OpenCore Legacy Patcher Users – Tested good on 5 Mac devices from 2010-2017
  • 7. Kernel Debug Kit – Kernel Debug Kit 14.3 build 23D56
My macOS Sonoma 14.3 Update Video

Full Apple Update Release list

macOS 💻 ✅

  • Sonoma – 14.3 (23D56)
  • Ventura – 13.6.4 (22G513)
  • Monterey – 12.7.3 (21H1015)
  • Safari – 17.3 is included in Sonoma and was released as a standalone update for Ventura and Monterey.
  • Xcode -None – Current release = 15.1
  • Command Line Tools for Xcode – None – Current release = 15.1

iOS📱✅

  • iOS – 17.3 (21D50), 16.7.5 (20H307) & 15.8.1 (19H380)
  • iPadOS – 17.3 (21D50), 16.7.5 (20H307) & 15.8.1 (19H380)
  • audioOS – 17.3 (21K646)
  • tvOS – 17.3 (21K646)
  • watchOS – 10.3 (21S644)

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Table of Contents

  • 1. Apple macOS Sonoma Links
  • 2. Sonoma Final & Beta Release History
  • 3. macOS Sonoma Full Installer.app
  • 4. Apple Silicon M1 M2 & M3 IPSW Restore file Update
  • 5. macOS Sonoma Update sizes
  • 6. Apple Silicon System Firmware Version
  • 7. Apple Silicon OS loader Version (iBoot)
  • 8. Intel T2 BridgeOS Update
  • 9. Safari Update
  • 10. What’s new for enterprise in macOS Sonoma
  • 11. Security Content of macOS Sonoma
  • 12. macOS Sonoma Release Notes / Patch Notes / Changes

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

1. Apple macOS Sonoma Links

macOS Sonoma Mac App Store download link = N/A

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

  1. What’s new in the updates for macOS Sonoma – https://support.apple.com/en-us/HT213895
  2. What’s new for enterprise in macOS Sonoma – https://support.apple.com/en-us/HT213893
  3. Apple Security Updates Page – https://support.apple.com/en-us/HT201222
  4. macOS Sonoma Mac App Store link – https://apps.apple.com/us/app/macos-sonoma/id6450717509
  5. macOS Sonoma features page – https://www.apple.com/macos/sonoma/
  6. Manage upgrading to macOS Sonoma in your organization
  7. If you see a message that macOS Server is not supported when upgrading to macOS Sonoma
  8. Platform Security Guide – New macOS Rapid Security Response system.
  9. Platform Guide Deployment – What’s new in Apple platform deployment

AppleSeed Notes Link = appleseed.apple.com/

Developer Public Link = developer.apple.com/documentation/macos-release-notes

macOS Deployment References Changes – https://support.apple.com/guide/deployment-reference-macos/document-revision-history-apd04dff7069/web

3. Sonoma Final & Beta Release History

  • 17. Sonoma 14.3 = 1/22/24
  • 16. Sonoma 14.2.1 = 12/19/23
  • 15. Sonoma 14.2 = 12/11/23
  • 14. Sonoma 14.1.2 = 11/30/23
  • 13. Sonoma 14.1.1 = 11/07/23
  • 12. Sonoma 14.1 – 11/25/23
  • 11. Sonoma 14.0 – 9/26/23
  • 10. Sonoma RC2
  • 9. Sonoma RC1
  • 8. Sonoma Beta 7 (23A5337a) – 8/30/23
  • 7. Sonoma Beta 6 () – 8/25/23
  • 6. Sonoma Beta 5 () – 8/08/23
  • 5. Sonoma Beta 4 () – 7/27/23
  • 4. Sonoma Public Beta () – 7/11/23
  • 3. Sonoma Beta 3 () – 7/06/23
  • 2. Sonoma Beta 2 () – 6/14/23
  • 1. Sonoma Beta 1 () – 6/06/23

4. macOS Sonoma Full Installer.app

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

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

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

5. Apple Silicon IPSW Restore file Update

Apple has released the full IPSW restore file of macOS for Apple Silicon M1 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/

6. macOS Sonoma Update sizes

Sonoma Delta Update

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

Full update with size 12.9 GB

Apple Silicon Updates

Delta from macOS Sonoma 14.2.1 with size = 1.83GB

Intel Updates

Delta from macOS Sonoma 14.2.1 with size =

Delta from macOS Ventura 13.6.3 with size = 4.88GB

Thank you DhinakG!!

7. 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!

  • 17. macOS Sonoma 14.3 = 10151.81.1
  • 16. macOS Sonoma 14.2.1 = 10151.61.4
  • 15. macOS Sonoma 14.2 = 10151.61.4
  • 14. macOS Sonoma 14.1.2 = 10151.41.12
  • 13. macOS Sonoma 14.1.1 = 10151.41.12
  • 12. macOS Sonoma 14.1 = 10151.41.12
  • 11. macOS Sonoma 14.0 = 10151.1.1
  • 10. macOS Sonoma RC2
  • 9. macOS Sonoma RC1
  • 8. macOS Sonoma Beta 7 = 10151.1.1
  • 7. macOS Sonoma Beta 6 =
  • 6. macOS Sonoma Beta 5 =
  • 5. macOS Sonoma Beta 4 =
  • 4. macOS Sonoma Public Beta = No change
  • 3. macOS Sonoma Beta 3 =
  • 2. macOS Sonoma Beta 2 =
  • 1. macOS Sonoma Beta 1 =

8. 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!

  • 17. macOS Sonoma 14.3 = 10151.81.1
  • 16. macOS Sonoma 14.2.1 = 10151.61.4
  • 15. Sonoma Sonoma 14.2 = 10151.61.4
  • 14. macOS Sonoma 14.1.2 = 10151.41.12
  • 13. macOS Sonoma 14.1.1 = 10151.41.12
  • 12. macOS Sonoma 14.1 = 10151.41.12
  • 11. macOS Sonoma 14.0 = 10151.1.1
  • 10. macOS Sonoma RC2 = 10151.1.1
  • 9. macOS Sonoma RC1 = 10151.1.1
  • 8. macOS Sonoma Beta 7 = 10151.1.1
  • 7. macOS Sonoma Beta 6 =
  • 6. macOS Sonoma Beta 5 =
  • 5. macOS Sonoma Beta 4 =
  • 4. macOS Sonoma Public Beta = No change
  • 3. macOS Sonoma Beta 3 =
  • 2. macOS Sonoma Beta 2 =
  • 1. macOS Sonoma Beta 1 =

9. Intel T2 BridgeOS Update

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

BridgeOS version = Updated!

  • 17. macOS Sonoma 14.3 = 21.16.3049.0.0
  • 16. macOS Sonoma 14.2.1 = 21.16.2057.0.0
  • 15. Sonoma Sonoma 14.2 = 21.16.2057.0.0
  • 14. macOS Sonoma 14.1.2 = 21.16.1069.0.0
  • 13. macOS Sonoma 14.1.1 = 21.16.1069.0.0
  • 12. macOS Sonoma 14.1 = 21.16.1069.0.0
  • 11. macOS Sonoma 14.0 = 21.16.364.5.1
  • 10. macOS Sonoma RC2 = 21.16.364.5.1
  • 9. macOS Sonoma RC1 = 21.16.364.5.1
  • 8. macOS Sonoma Beta 7 = 21.16.364.5.1
  • 7. macOS Sonoma Beta 6 =
  • 6. macOS Sonoma Beta 5 =
  • 5. macOS Sonoma Beta 4 =
  • 4. macOS Sonoma Public Beta = No change
  • 3. macOS Sonoma Beta 3 =
  • 2. macOS Sonoma Beta 2 =
  • 1. macOS Sonoma Beta 1 =

10. Safari Update

The new version of Safar 16 is included in the macOS Ventura update.

Safari = UPDATED!

  • 17. macOS Sonoma 14.2.1 = 17.3 (19617.2.4.11.8)
  • 16. macOS Sonoma 14.2.1 = 17.2.1
  • 15. macOS Sonoma 14.2 = 17.2 (19617.1.17.11.9)
  • 14. macOS Sonoma 14.1.2 = 17.2.1 (19616.2.9.11.12)
  • 13. macOS Sonoma 14.1.1 = 17.1 (19616.2.9.11.7)
  • 12. macOS Sonoma 14.1 = 17.1 (19616.2.9.11.7)
  • 11. macOS Sonoma 14.0 = 17.0
  • 10. macOS Sonoma RC2
  • 9. macOS Sonoma RC1
  • 8. macOS Sonoma Beta 7 =
  • 7. macOS Sonoma Beta 6 =
  • 6. macOS Sonoma Beta 5 =
  • 5. macOS Sonoma Beta 4 =
  • 4. macOS Sonoma Public Beta = No change
  • 3. macOS Sonoma Beta 3 =
  • 2. macOS Sonoma Beta 2 =
  • 1. macOS Sonoma Beta 1 =

11. What’s new for Enterprise in macOS Sonoma

Enterprise changes in macOS Sonoma 14.3

  • Xsan volumes no longer fail to mount automatically.
  • Passwords can be changed successfully at the login window.
  • Improves reliability authenticating to an SMB print server.
  • Improves reliability using single sign-on when using a proxy for associated domains traffic.

https://support.apple.com/en-us/HT213893

12. Security Content of macOS Sonoma

Security vulnerabilities in this Sonoma Update

Fixes addressed in this update = 16

Safari 17.3 = 4

Sonoma 14.3 = 12

13. macOS Sonoma Release Notes

Sonoma 14.3

macOS Sonoma 14.3 introduces enhancements to Apple Music, as well as other features, bug fixes, and security updates for your Mac.

  • Collaborate on playlists in Apple Music allows you to invite friends to join your playlist and everyone can add, reorder, and remove songs
  • Emoji reactions can be added to any track in a collaborative playlist in Apple Music
  • AppleCare & Warranty in Settings shows your coverage for all devices signed in with your Apple ID

Some features may not be available for all regions, or on all Apple devices.

For information on the security content of Apple software updates, please visit this website: https://support.apple.com/kb/HT201222

https://developer.apple.com/documentation/macos-release-notes

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