If you're having difficulty finding or installing updates: If Software Update says that your Mac is up to date, then macOS and all of the apps it installs are up to date, including Safari, Messages, Mail, Music, Photos, FaceTime, Calendar, and Books. If you want to update apps downloaded from the App Store, use the App Store to get updates. Before you install the Office 2011 14.2.3 Update, make sure that the computer is running Mac OS X v10.5.8 or a later version of the Mac OS X operating system. Microsoft Office for Mac 2011 14.7.7 Update This update fixes critical issues and also helps to improve security. It includes fixes for vulnerabilities that an attacker can use to overwrite the contents of your computer's memory with malicious code.
If you're having difficulty finding or installing updates:
This update resolves compatibility issues that have been reported while using the software on the latest versions of Mac OS X Snow Leopard (10.6.8) and Mac OS X Lion. Otherwise, manual restart the Mac. Note: If you are in audit mode, do not use the 'System Preparation Tool' to restart. When first executing 'Apple Software Update' you may be asked to update 'Apple Software Update' itself. If you happens, you should uncheck all other updates and just update 'Apple Software Update'.
macOS Big Sur elevates the most advanced desktop operating system in the world to a new level of power and beauty. Experience Mac to the fullest with a refined new design. Enjoy the biggest Safari update ever. Discover new features for Maps and Messages. And get even more transparency around your privacy.
macOS Big Sur is compatible with the following computers. If your Mac isn't compatible, you might be able to install an old version of macOS instead.
MacBook introduced in 2015 or later
MacBook Air introduced in 2013 or later
MacBook Pro introduced in late 2013 or later
Mac mini introduced in 2014 or later
iMac introduced in 2014 or later
Mac Pro introduced in 2013 or later
View the complete list of compatible computers.
If upgrading from macOS Sierra or later, your Mac needs 35.5GB of available storage to upgrade. If upgrading from an earlier release, your Mac needs up to 44.5GB of available storage. To upgrade from OS X Mountain Lion, first upgrade to OS X El Capitan, then upgrade to macOS Big Sur.
If you're using macOS Mojave or later, get macOS Big Sur via Software Update: Choose Apple menu > System Preferences, then click Software Update.
Or use this link to open the macOS Big Sur page on the App Store: Get macOS Big Sur. Then click the Get button or iCloud download icon.
After downloading, the installer opens automatically. Click Continue and follow the onscreen instructions.
Please allow installation to complete without putting your Mac to sleep or closing its lid. During installation, it might restart and show a progress bar or blank screen several times. You might find it easiest to begin installation in the evening so that it can complete overnight, if needed.
After installing macOS Big Sur, you will be notified when updates to macOS Big Sur are available. To check for updates, choose Apple menu > System Preferences, then click Software Update.