Software Update found the following full installers: (note that the option starts with two hyphens, not an m-dash) First list the installers available using the command Your fallback then, if you’re running Big Sur or Monterey, is to use the softwareupdate command in Terminal.

Sometimes that may not work, with macOS complaining that it isn’t capable of installing such an old version of macOS/OS X. Look in the main Applications folder for the installer app, whose name should start with Install, and make a copy of that. Once that download completes, the installer app will open and probably inform you that it’s too old to install on that Mac. That will then invite you to confirm that you do want to download the old version. Simply click on the appropriate link, and that installer page will open in the App Store, where clicking on the Get button should start the download through the Software Update pane. Unfortunately installers aren’t always easy to come by, so in this article I explain the options offered by Apple for obtaining an official and properly signed installer for those versions, as well as how to download old versions of Xcode.Īpple’s support page lists all those installers currently available through the App Store and official downloads going back as far as OS X Yosemite. It might be for an old Mac, or a new Virtual Machine, for example. Separately, iOS 15.2 for iPhone, iPadOS 15.2 for iPad, watchOS 8.3 for Apple Watch, and tvOS 15.2 for Apple TV were released as well.There are plenty of good reasons for wanting to install an old version of macOS or even OS X. The security-specific release notes for macOS 11.6.2 are rather substantial and include many security patches, making it important for Big Sur users to install the update.

This update is recommended for all users and improves the security of macOS.įor more information on the security content of this update see Release notes included with macOS Big Sur 11.6.2 are brief: Users running macOS Catalina will find a Security Update available instead, or the option to update to macOS Monterey. Optionally, users can also choose to update to macOS Monterey 12.1 if they’re ready to install the MacOS Monterey operating system. Installing macOS Big Sur 11.6.2 will require the Mac to reboot. Check the box for macOS Big Sur 11.6.2 update, and choose to ‘Install Now’.

Choose to “More Info” under ‘Other Updates Available.

Go to the  Apple menu and select “System Preferences”.

The macOS 11.6.2 update includes important security updates and is therefore recommended for all Big Sur users to install.Īlways backup the Mac with Time Machine before installing system updates.

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