SuperDuper! v3.3.1: Heroic System Recovery for Mere Mortals. Catalina compatible, and smarter than ever.

Back-to-back 2005 and 2006 Eddy Award Winning...and compatible with the Mac you're using.

We invite you to expand your Dynamic Desktop with our downloadable Dynamic Desktops for macOS. An alternative to using the 24 Hour Wallpaper app, these downloads do not require an app and work directly with macOS. But of course we didn't abandon our non-Mojave users. 3.3.1 is still compatible with Yosemite (10.10) and later, and as always we've made improvements for everyone. And, of course, 3.3.1 still includes all the other terrific features of SuperDuper!, including: the ability to easily schedule backups; many imaging options; more control over.

Big Sur Infomation

SuperDuper! 3.3.1 is not yet fully Big Sur compatible.

However, a workaround is now available: see the Shirt Pocket blog for information.

We're happy to announce the immediate availability of SuperDuper! 3.3.1, the latest version of our popular disk copying utility for macOS.

How To Update To Mojave From Yosemite

3.3.1 is fully compatible with Catalina, the latest release of macOS, and produces fully bootable HFS+ and APFS backups faster and easier than ever. It even supports creating and copying from snapshots! You can keep your backup on its own volume, or you can even store and Smart Update it alongside your Time Machine backups. We even let you copy your Time Machine backups to other disks, so you can back them up or upgrade to a larger disk without losing your history!

And we've improved our super-cool new Smart Delete feature, which helps to banish 'disk full' errors to the land of wind and ghosts, without any speed penalty; a Smart Wake feature to ensure your backups happen whether your Mac is awake or asleep; and the ability to turn off 'missing drive' errors during scheduling...plus a lot more.

But of course we didn't abandon our non-Mojave users. 3.3.1 is still compatible with Yosemite (10.10) and later, and as always we've made improvements for everyone. And, of course, 3.3.1 still includes all the other terrific features of SuperDuper!, including: the ability to easily schedule backups; many imaging options; more control over shutdown; AppleScript support; hundreds of UI improvements; Growl support; and an extensive, task-based User's Guide.

SuperDuper! also includes Smart Update, a great feature that updates a clone to exactly reflect any changes on the original in just minutes!

Once again, it's a free update for existing customers. Copies will auto-upgrade, but you can also download now!

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

If a macOS installer can't be used on your Mac, the installer will let you know. For example, it might say that it's too old to be opened on this version of macOS, or that your Mac doesn't have enough free storage space for the installation.

To confirm compatibility before downloading, check the minimum requirements for macOS Catalina, Mojave, High Sierra, Sierra, El Capitan, or Yosemite. You can also find compatibility information on the product-ID page for MacBook Pro, MacBook Air, MacBook, iMac, Mac mini, or Mac Pro.

Make a backup

Before installing, it’s a good idea to back up your Mac. Time Machine makes it simple, and other backup methods are also available. Learn how to back up your Mac.

Download macOS

It takes time to download and install macOS, so make sure that you're plugged into AC power and have a reliable internet connection.

Safari uses these links to find the old installers in the App Store. After downloading from the App Store, the installer opens automatically.

Upgrade To High Sierra

• 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

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.

• 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

Install macOS

Follow the onscreen instructions in the installer. It might be easiest to begin installation in the evening so that it can complete overnight, if needed.

Can You Upgrade To Mojave From Yosemite

If the installer asks for permission to install a helper tool, enter the administrator name and password that you use to log in to your Mac, then click Add Helper.

Please allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart, show a progress bar, or show a blank screen several times as it installs macOS and related firmware updates.

Learn more

How To Upgrade To Mojave From Yosemite

Should I Upgrade To Mojave From Yosemite

You might also be able to use macOS Recovery to reinstall the macOS you're using now, upgrade to the latest compatible macOS, or install the macOS that came with your Mac.