macOS Tahoe 26.3 Update Released

Apple has released macOS Tahoe 26.3 for all Mac users to install as a software update. macOS Tahoe 26.3 focuses on bug fixes and security enhancements, and are recommended to install for all Tahoe users.
Mac users who are running Sequoia or Sonoma will find smaller security patch oriented updates available for those system software versions instead.
Separately, Apple has also released iOS 26.3 update for iPhone, iPadOS 26.3 update for iPad, along with watchOS 26.3, tvOS 26.3, visionOS 26.3, and updates for older iPhone and iPad models as well.
How to Download & Install MacOS Tahoe 26.3 Update for Mac
Be sure you backup the Mac with Time Machine prior to starting a system software update.
- From the Apple menu on the Mac, go to “System Settings”
- Go to “General”, and then “Software Update”
- Select to “Update Now” to begin downloading and installing macOS Tahoe 26.3 update on the Mac

MacOS Tahoe 26.3 is a large 13+ GB download, and installation can take a while so have patience. Your Mac must restart to complete installation.
If you’re running MacOS Sequoia or macOS Sonoma, you will also find updates to install for those macOS versions instead.
Optionally, you can download IPSW or installer packages for each of these versions of system software below.
macOS Tahoe 26.3 Direct Download Links
The following links point to the macOS Tahoe 26.3 installer package file and the macOS Tahoe 26.3 IPSM firmware file on Apple CDN servers:
MacOS Sequoia 15.7.4 & MacOS Sonoma 14.8.4 Installer Download Links
macOS Tahoe 26.3 Release Notes
Release notes accompanying the download for MacOS Tahoe 26.3 are very brief with no specificity:
macOS Tahoe 26.3
This update provides important bug fixes and security updates.
For information on the security content of Apple software updates, please visit: https://support.apple.com/100100
Some features may not be available for all regions. For more information, please visit: https://www.apple.com/os/macos/
Software updates, like this one, add new features and improvements that may affect performance and/or battery life. To learn more, please visit: https://support.apple.com/125039
The only bug fix to be fixed as mentioned on Apple’s developer site is resolving an issue where it is difficult to resize windows when attempting to grab where a user might expect to grab a window to resize. There is no mention of resolution to any other bugs or issue with Liquid Glass, Reduce Transparency not working completely, a popular Accessibility feature that can help the annoying legibility issues with MacOS Tahoe. We will update this article with any significant changes or Liquid Glass adjustments, if they are found.
Don’t forget to update all of your other Apple devices, including other Macs, iPhones, iPads, Apple Watch, Apple TV, Vision Pro, and whatever else you have laying around, because there’s a bevy of update available for nearly everything today.


MacBook Air M1 (2020) was with last 26.2 update. 26.3 can not be installed – some stupid error that I find in internet can be because of internet, ssd or memory. None of this have problem. Tryed all variants of installation, last was from usb flash with erase of hard drive and after that end with no os installed, boot only in recovery lol. After that old version (Sequoia) can not be installed too. Button to analyze hard for errors told that partition was created with newer version of program and this is suspected cause to not install older version of OS. Erased drive after that two times until this newer version disappear. Looks like that try to install Sequoia replaced recovery with older version of disk utility and this helps to install older OS without problem. Finally after some hours I have working laptop again. I thought that it is bricked forever…
I don’t know what is wrong with 26.3 but I will not try to install it again, maybe will wait next 1-2 versions lol
What specific error did you encounter when attempting to download and install Tahoe 26.3 on your Mac?
Generally the best(easiest) way to update is through System Settings > General > Software Update
“Failed to personalize the software update. Please try again.”
And something to check internet, but no problem with internet.
I know what is easiest way but nothing worked.
Will stay to Sequoia for some time :)
In my experience, the worst macOS ever released. It is riddled with bugs after updating from the previous OS. So far none of the updates have resolved virtually anything.
Window resize bug is NOT fixed
The release notes list NOTHING fixed
https://developer.apple.com/documentation/macos-release-notes/macos-26_3-release-notes
So I guess it is up to us to figure out what Apple is even doing with these updates. Maybe they abandoned macOS Tahoe entirely. Embarrassing for Lake Tahoe which is a beautiful place because macOS Tahoe is a mess.