macOS Tahoe 26.4 Update! Everything you need to know.

macOS Tahoe 26.4 (25E246) is now Available For All Users!

UPDATED: 03/31/26

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

Apple just released the 4th major update for macOS Tahoe to the public! Let’s jump in and find out what’s new.

This isn’t just a routine update. It will most likely be the final major feature release for macOS Tahoe. After what MacAdmins call the “Spring Release,” most development work usually shifts to the next OS, macOS 27, ahead of its debut in June at WWDC26.

macOS Tahoe Patch Notes Summary

1. New Features – 7
2. Developer Documented Fixes –
3. Security Fixes – 64
4. Enterprise Fixes – 12
5. Safari Security (Webkit) – 7
6. Safari – 26.4
7. Full installer & IPSW – Both Released
8. OpenCore Legacy Patcher Users – NOT COMPATIBLE!

OpenCore Legacy Patcher for Unsupported Macs

OCLP 2.4.1 & macOS Tahoe 26.4 : DO NOT INSTALL! NOT COMPATIBLE YET. This release is in full testing and it is not recommended that you attempt to install it yet.!

OCLP 2.4.1 Testing Status =

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

Metallibsupport Status: = https://github.com/dortania/MetallibSupportPkg/releases

Full Apple Update Release list

Update List 💻📲 ✅

macOS Tahoe 26.4 (25E246)
macOS Sequoia 15.7.5 (24G624)
macOS Sonoma 14.8.5 (23J423)
iOS 26.4 (23E246)
iPadOS 26.4 (23E246)
iOS 18.7.7 (22H333)
watchOS 26.4 (23T239)
watchOS 8.8.2 (19U526)
watchOS 5.3.10 (16U711)
homePodOS 26.4 (23L243)
tvOS 26.4 (23L243)
visionOS 26.4 (23O247)
Studio Display Firmware 26.4 (23E246)
Safari – 26.4 (21624.1.16.11.4)
Xcode – 26.4
Command Line Tools for Xcode – 26.4

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1. macOS Tahoe Apple Links
2. macOS Tahoe Release History
3. macOS Tahoe Full Installer.app
4. Apple Silicon macOS Tahoe IPSW Restore file Database
5. macOS Tahoe 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 Tahoe
12. Security Content of macOS Tahoe
13. macOS Tahoe Release Notes / Patch Notes / Changes
14. macOS Tahoe Developer Release Notes

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

1. Apple macOS Tahoe Links

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

What’s new in the updates for macOS Tahoe – https://support.apple.com/en-us/122868
What’s new for enterprise in macOS Tahoe – https://support.apple.com/en-us/124963
Apple Security Updates Page – https://support.apple.com/en-us/HT201222
macOS Tahoe Mac App Store link – Apple stopped creating a Mac App Store link for macOS Downloads. Sequoia was the final OS that has an App Store link.
macOS Tahoe features page – https://www.apple.com/macos/os/
Platform Security Guide – New macOS Tahoe Background Security Improvements or BSI.
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

2. macOS Tahoe Final & Beta Release History

17. macOS Tahoe 26.4 (25E246) -3/24/26
16. macOS Tahoe 26.3.1 (25D2128) – 3/4/26
15. macOS Tahoe 26.3 (25D125) – 2/11/26
14. macOS Tahoe 26.2 (25C56) – 12/12/25
13. macOS Tahoe 26.1 (25B78) – 11/03/25
12. macOS Tahoe 26.0.1 (25A362) – 10/29/25
11. macOS Tahoe 26.0.0 (25A354) – 10/15/25
10. macOS Tahoe 26 RC (25A353) – 10/09/25
9. macOS Tahoe 26 Beta 9 (25A5349a) – 10/02/25
8. macOS Tahoe 26 Beta 8 (25A5349a) – 9/25/25
7. macOS Tahoe 26 Beta 7 (25A5346a) – 8/18/25
6. macOS Tahoe 26 Beta 6 (25A5338b) – 8/11/25
5. macOS Tahoe 26 Beta 5 (25A5327h) – 8/07/25
4. macOS Tahoe 26 Beta 4 (25A5316i) – 7/22/25
3. macOS Tahoe 26 Beta 3 (25A5306g) – 7/07/25
2. macOS Tahoe 26 Beta 2 (25A5295e) – 6/23/25
1. macOS Tahoe 26 Beta 1 (25A5279m) – 6/09/25

3. macOS Tahoe Full Installer.app

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

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

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

4. Apple Silicon IPSW Restore file Update

Apple has released the full IPSW restore file of macOS for Apple Silicon 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 Tahoe Update sizes

Delta Update

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

Full update & OCLP Users = NOT SUPPORTED YET

Apple Silicon Updates

Delta from macOS Tahoe 26.3.1 with size = 7.15GB

Upgrade from macOS Sequoia 15.7.3 with size = 10.01GB

Intel Updates

Delta Update from macOS Tahoe 26.3.1 with size = 5.91GB

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“. Also known as mBoot.

Apple Silicon Firmware = Updated!

17. macOS Tahoe 26.4 = 18000.101.7
16. macOS Tahoe 26.3.1 = 13822.81.10
15. macOS Tahoe 26.3 = 13822.81.10
14. macOS Tahoe 26.2 = 13822.61.10
13. macOS Tahoe 26.1 = 13822.41.1
12. macOS Tahoe 26.0.1 = 13822.1.2
11. macOS Tahoe 26.0 = 13822.1.2
10. macOS Tahoe RC = 13822.1.2
9. macOS Tahoe Beta 9 = 13822.1.2
8. macOS Tahoe Beta 8 = 13822.1.2
7. macOS Tahoe Beta 7 = 13822.1.2
6. macOS Tahoe Beta 6 = 13822.1.2
5. macOS Tahoe Beta 5 = 13822.0.277.0.3
4. macOS Tahoe Beta 4 = 13822.0.233
3. macOS Tahoe Beta 3 = 13822.0.194.0.3
2. macOS Tahoe Beta 2 = 13822.0.166.0.1
1. macOS Tahoe Beta 1 = 13822.0.88.511.1

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!

17. macOS Tahoe 26.4 = 18000.101.7
16. macOS Tahoe 26.3.1 = 13822.81.10
15. macOS Tahoe 26.3 = 13822.81.10
14. macOS Tahoe 26.2 = 13822.61.10
13. macOS Tahoe 26.1 = 13822.41.1
12. macOS Tahoe 26.0.1 = 13822.1.2
11. macOS Tahoe 26.0 = 13822.1.2
10. macOS Tahoe RC = 13822.1.2
9. macOS Tahoe Beta 9 = 13822.1.2
8. macOS Tahoe Beta 8 = 13822.1.2
7. macOS Tahoe Beta 7 = 13822.1.2
6. macOS Tahoe Beta 6 = 13822.1.2
5. macOS Tahoe Beta 5 = 13822.0.277.0.3
4. macOS Tahoe Beta 4 = 13822.0.233
3. macOS Tahoe Beta 3 = 13822.0.194.0.3
2. macOS Tahoe Beta 2 = 13822.0.166.0.1
1. macOS Tahoe Beta 1 = 13822.0.88.511.1

8. Intel T2 BridgeOS Update

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

BridgeOS version = Updated!

17. macOS Tahoe 26.4 = 23.16.14242.0.0
16. macOS Tahoe 26.3.1 = 23.16.13120.0.0
15. macOS Tahoe 26.3 = 23.16.13120.0.0
14. macOS Tahoe 26.2 = 23.16.12048.0.0
13. macOS Tahoe 26.1 = 23.16.11072.0.0
12. macOS Tahoe 26.0.1 = 23.16.10350.0.0
11. macOS Tahoe 26.0 = 23.16.10350.0.0
10. macOS Tahoe RC = 23.16.10350.0.0
9. macOS Tahoe Beta 9 = 23.16.10350.0.0
8. macOS Tahoe Beta 8 = 23.16.10348.5.1
7. macOS Tahoe Beta 7 = 23.16.5342.0.1
6. macOS Tahoe Beta 6 = 23.16.5342.0.1
5. macOS Tahoe Beta 5 = 23.16.5331.0.4
4. macOS Tahoe Beta 4 = 23.16.5320.0.2
3. macOS Tahoe Beta 3 = N/A
2. macOS Tahoe Beta 2 = N/A
1. macOS Tahoe Beta 1 = 23.16.5283.0.7

9. Intel T2 Firmware Update

The System Firmware Version for your Mac (2019-2020)

Firmware version = Updated!

4. macOS Tahoe 26.4 = 2103.100.6.0.0 (iBridge: 23.16.14.242.0.0,0)
3. macOS Tahoe 26.3.1 = 2094.80.5.0.0 (iBridge: 23.16.13120.0.0,0)
2. macOS Tahoe 26.3 = 2094.80.5.0.0 (iBridge: 23.16.13120.0.0,0)
1. macOS Tahoe 26.2 = 2094.40.1.0.0 (iBridge: 23.16.12048.0.0,0)

10. Safari Update

The new version of Safari was 26 is included in the macOS 26 update.

Safari = Updated!

17. macOS Tahoe 26.4 = Safari 26.4 (21624.1.16.11.4)
16. macOS Tahoe 26.3.1 = Safari 26.3.1 (21623.2.7.11.7)
15. macOS Tahoe 26.3 = Safari 26.3 (21623.2.7.11.6)
14. macOS Tahoe 26.2 = Safari 26.2 (21623.1.14.11.9)
13. macOS Tahoe 26.1 = Safari 26.1 (info missing)
12. macOS Tahoe 26.0.1 = Safari 26.0.1 (21622.1.22.11.15)
11. macOS Tahoe 26.0 = Safari 26.0 (21622.1.22.11.14)
10. macOS Tahoe RC = Safari 26.0 (21622.1.22.11.14)
9. macOS Tahoe Beta 9 = Safari 26.0 (21622.1.22.11.13)
8. macOS Tahoe Beta 8 = Safari 26.0 (21622.1.22.11.12)
7. macOS Tahoe Beta 7 = Safari 26.0 (21622.1.22.11.11)
6. macOS Tahoe Beta 6 = Safari 26.0 (21622.1.22.11.5)
5. macOS Tahoe Beta 5 = Safari 26.0 (21622.1.21.11.3)
4. macOS Tahoe Beta 4 = Safari 26.0 (21622.1.19.11.2)
3. macOS Tahoe Beta 3 = Safari 26.0 (21622.1.18.1.5)
2. macOS Tahoe Beta 2 = Safari 26.0 (21622.1.16.11.2)
1. macOS Tahoe Beta 1 = Safari 26.0 (21622.1.14.11.4)

11. What’s new for Enterprise in Tahoe

Enterprise changes in macOS Tahoe 26.4

Siri, and Keyboard settings are available. These replace the restrictions for these settings in the com.apple.applicationaccess profile, which are now deprecated.
New controls are available to configure which volumes that File Provider extensions can access and how they synchronize data.
Starting in macOS Tahoe 26.4, users will be notified when they launch apps that use Rosetta that they will not open in a future release of macOS. Organizations using a device management service can control the notification experience via the allowRosettaUsageAwarenessrestrictions key. Rosetta support for apps will remain available through the forthcoming macOS 27.
The new Age Range setup pane is automatically skipped for devices using Automated Device Enrollment.
If a new identity certificate fails to install during device management enrollment renewal, the original certificate is retained to prevent unenrollment.
Resolved an issue where configured printers were removed after a software update.
Login Window settings configured by device management correctly return to defaults after the configuration is removed.
Resolved an issue where users created with the AccountConfiguration command and maxPINAgeInDays or changeAtNextAuthpasscode policies applied may fail to authenticate.
Network shares added to favorites and unmounted no longer fail to reconnect.
Keynote, Numbers, and Pages do not prompt to sign in to an Apple Account when installed as a managed app.

https://support.apple.com/en-us/124963

12. Security Content of macOS Tahoe

Security vulnerabilities in this Update

Fixes addressed in this update = 64

Safari 26.4 (WebKit) = 7

https://support.apple.com/en-us/126794

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

13. macOS Tahoe Release Notes

macOS Tahoe 26.4 Update Patch Notes

This update also includes the following enhancements:

Support for AirPods Max 2
8 new emoji including an orca, trombone, landslide, ballet dancer, and distorted face are available in the emoji keyboard
Compact tab bar option in Safari gives you more space to browse and lets you search directly from the active tab
Freeform gains advanced image creation and editing tools, and a premium content library, joining Apple Creator Studio
Mark reminders as urgent with a keyboard shortcut, and filter for urgent reminders in your Smart Lists
Purchase Sharing lets adult members in Family Sharing groups use their own payment method when making purchases, without relying on the family organizer
Subtitle and caption settings are easier to find when viewing media, with real-time preview available directly from the captions icon

14 macOS Tahoe Developer Release Notes

This update also includes the following Developer enhancements and bug fixes:

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

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