The download (from Catalina) will start – since it is almost 8 GB, it will probably take some time. Connect a flash drive. Choose “Create a bootable installer” from the options. Connect the bootable installer to the Mac that you need to update. Restart your Mac while holding down the Option / Alt key. As new major versions of macOS are released and older versions become unsupported, we highly recommend you continue to update your macOS to a supported version in order to receive mainstream support such as security updates as well as new features (if you’re an Microsoft 365 for Mac subscriber). This applies for both Microsoft 365 for Mac. Catalina on MacPro 5,1 – Cheese Grating Catalina. “Mac Pro models from late 2013 (plus mid-2010 or mid-2012 models with certain Metal-capable graphics processor) are supported”. This to me is a little unclear. Unfortunately MacPro5,1 is listed as unsupported in macOS Catalina this seems to be soon set in stone.
To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac.
Learn how to upgrade to macOS Big Sur, the latest version of macOS.
Check compatibility
Question: Q: Unable to install macOS Catalina 10.15.7 Update Software Update prompts me that an update is available for my Mac. Specifically, the 10.15.7 update and tells me a restart is required.
The version of macOS that came with your Mac is the earliest version it can use. For example, if your Mac came with macOS Big Sur, it will not accept installation of macOS Catalina or earlier.
If a macOS can't be used on your Mac, the App Store or installer will let you know. For example, it might say that it's not compatible with this device or is too old to be opened on this version of macOS. To confirm compatibility before downloading, check the minimum hardware requirements:
How To Get Catalina On Unsupported Mac
Upgrade To Catalina On Unsupported Mac Os
- macOS Catalina 10.15 hardware requirements
- macOS Mojave 10.14 hardware requirements
- macOS High Sierra 10.13 hardware requirements
- macOS Sierra 10.12 hardware requirements
- OS X El Capitan 10.11 hardware requirements
- OS X Yosemite 10.10 hardware requirements
Download macOS using Safari on your Mac
Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.
How To Update Catalina On Unsupported Mac
- macOS Catalina 10.15 can upgrade Mojave, High Sierra, Sierra, El Capitan, Yosemite, Mavericks
- macOS Mojave 10.14 can upgrade High Sierra, Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
- macOS High Sierra 10.13 can upgrade Sierra, El Capitan, Yosemite, Mavericks, Mountain Lion
Upgrade To Catalina On Unsupported Machines
Upgrade To Catalina On Unsupported Macbook Pro
Safari downloads the following older installers as a disk image named InstallOS.dmg or InstallMacOSX.dmg. Open the disk image, then open the .pkg installer inside the disk image. It installs an app named Install [Version Name]. Open that app from your Applications folder to begin installing the operating system.
How To Install Catalina On Unsupported Mac
- macOS Sierra 10.12 can upgrade El Capitan, Yosemite, Mavericks, Mountain Lion, or Lion
- OS X El Capitan 10.11 can upgrade Yosemite, Mavericks, Mountain Lion, Lion, or Snow Leopard
- OS X Yosemite 10.10can upgrade Mavericks, Mountain Lion, Lion, or Snow Leopard