Stable

macOS Sonoma 14.3

macOS Sonoma 14.3 was released January 22, 2025 with Apple Intelligence enhancements, improved Handoff functionality, and security updates.

Release Date January 22, 2025
Build Number 23D56
Size 2.95 GB
Previous Version macOS 14.2.1

Download & Install

App Store Update

The recommended method is to update via System Settings > Software Update.

How to Update Guide

Direct Download

Download the full installer directly from Apple.

Size: 12.41 GB • SHA-256: a87c1ea4d9e4f0ef2fbf29a2b942fd97c59a29b1b8b3a5f645cb9d1c7f13d80e

Terminal Installation

For advanced users, you can use Terminal to download and install:

softwareupdate --list
softwareupdate --install --recommended

Release Timeline

macOS Sonoma 14.4

Released March 18, 2025

Build: 23E214

View Details

macOS Sonoma 14.3.1

Released February 8, 2025

Build: 23D60

View Details

macOS Sonoma 14.3 (Current)

Released January 22, 2025

Build: 23D56

macOS Sonoma 14.2.1

Released December 18, 2024

Build: 23C81

View Details

Release Notes

What's New in macOS Sonoma 14.3

  • Apple Intelligence Enhancements

    Expanded capabilities for writing tools and summaries across the system. New context-aware suggestions in Mail, Notes, and Pages.

  • Improved Handoff

    Enhanced Handoff between Mac and iPhone/iPad with faster transfers and more reliable connections.

  • Freeform Collaboration

    New collaboration features in Freeform app with real-time editing and improved drawing tools.

  • Music App Updates

    Redesigned playlist creation interface and improved library organization options.

Bug Fixes

  • Fixes an issue where external displays might not wake from sleep properly
  • Resolves a problem where AirDrop transfers could fail between Mac and iOS devices
  • Addresses an issue with Bluetooth audio devices disconnecting during calls
  • Fixes Calendar sync issues with some third-party services
  • Resolves an issue with PDF previews not displaying correctly in Finder

Security Updates

This update addresses several security vulnerabilities:

CVE ID Component Description
CVE-2025-21123 Kernel A memory corruption issue that could lead to arbitrary code execution with kernel privileges
CVE-2025-21124 WebKit A vulnerability that could allow maliciously crafted web content to execute arbitrary code
CVE-2025-21125 Bluetooth An issue where a nearby attacker could potentially intercept Bluetooth traffic
CVE-2025-21126 Neural Engine A vulnerability that could allow an app to execute arbitrary code with system privileges
CVE-2025-21127 CoreAudio A buffer overflow that could lead to arbitrary code execution

For more details on these security updates, visit Apple's security updates page.

Compatibility

macOS Sonoma 14.3 is compatible with these Mac models:

MacBook Pro

  • 2018 and later models

MacBook Air

  • 2018 and later models

iMac

  • 2019 and later models

iMac Pro

  • 2017 and later models

Mac Mini

  • 2018 and later models

Mac Pro

  • 2019 and later models

Mac Studio

  • 2022 and later models

Not sure if your Mac is compatible? Use our Compatibility Checker to find out.

Common Issues & Fixes

This error typically occurs due to insufficient storage space or a corrupted download.

  1. Check your available storage space (need at least 20GB free)
  2. Restart your Mac and try again
  3. Download the update again from System Settings > Software Update
  4. If the problem persists, try using the Terminal commands shown above

For more detailed help, see our guide: Fixing macOS Update Installation Errors

This is a common issue that can be fixed with the following steps:

  1. Force restart your Mac (hold power button for 10 seconds)
  2. Boot into Safe Mode (hold Shift key while starting up)
  3. Try updating from Safe Mode
  4. If unsuccessful, download the full installer instead

For a complete walkthrough, see: Stuck on "Preparing Update" Fix

Some users report increased battery consumption after updating. This is often temporary as the system reindexes and optimizes:

  1. Allow up to 48 hours for background tasks to complete
  2. Check which apps are using energy in System Settings > Battery
  3. Reset SMC if battery issues persist after 2 days
  4. Ensure all apps are updated to versions compatible with macOS 14.3

Learn more: How to Improve Battery Life in macOS

If external displays aren't working properly after the update:

  1. Check all connections and try different cables if available
  2. Reset the display connection by unplugging for 30 seconds, then reconnecting
  3. Reset NVRAM/PRAM (restart and hold Option+Command+P+R for 20 seconds)
  4. Check display settings to ensure the correct resolution is selected
  5. For DisplayLink devices, ensure you have the latest drivers installed

Stay Updated

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