Is your Mac up to date with the latest version of the Mac operating system (macOS or OS X)? Is it using the version required by some other product that you want to use with your Mac? Which versions are earlier (older) or later (newer, more recent)? To find out, learn which version is installed now.
If your macOS isn't up to date, you may be able to update to a later version.
Which macOS version is installed?
Aug 19, 2020. Mar 30, 2020.
From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Mojave, followed by its version number. If you need to know the build number as well, click the version number to see it.
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This example shows macOS Catalina version 10.15 build 19A583.
Which macOS version is the latest?
These are all Mac operating systems, starting with the most recent. When a major new macOS is released, it gets a new name, such as macOS Catalina. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.
If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.
macOS | Latest version |
---|---|
macOS Catalina | 10.15.6 |
macOS Mojave | 10.14.6 |
macOS High Sierra | 10.13.6 |
macOS Sierra | 10.12.6 |
OS X El Capitan | 10.11.6 |
OS X Yosemite | 10.10.5 |
OS X Mavericks | 10.9.5 |
OS X Mountain Lion | 10.8.5 |
OS X Lion | 10.7.5 |
Mac OS X Snow Leopard | 10.6.8 |
Mac OS X Leopard | 10.5.8 |
Mac OS X Tiger | 10.4.11 |
Mac OS X Panther | 10.3.9 |
Mac OS X Jaguar | 10.2.8 |
Mac OS X Puma | 10.1.5 |
Mac OS X Cheetah | 10.0.4 |
Learn more
- Always use the macOS that came with your Mac, or a compatible newer version.
- Learn how to reinstall macOS from macOS Recovery.
Backing up your Mac is simple and important. We recommend it for everyone.
Back up with Time Machine
Time Machine is the built-in backup feature of your Mac. It’s a complete backup solution, but you can use other backup methods as well.
Create a backupStore files in iCloud
You can also use iCloud and iCloud Drive to store files, such as your photos, documents, and music.
Set up iCloud and iCloud DriveRestore your Mac from a backup
When you have a backup, you can use it to restore your files at any time, including after the original files are deleted from your Mac.
Restore from a backupBest Imac For Home Use
Prepare your Mac for service
Making a backup is an important part of preparing your Mac for service, especially because some types of repair might require erasing or replacing your hard drive.
Get your Mac ready for serviceBest Imac Configuration
How much space do I need for a backup?
To see the size of a specific file or folder, click it once and then press Command-I. To see storage information about your Mac, click the Apple menu in the top-left of your screen. Choose About This Mac and click the Storage tab. For Time Machine backups, it's good to use a drive that has at least twice the storage capacity of your Mac.
Related topics
Free up storage on your Mac
![Mac Mac](/uploads/1/2/6/6/126633929/623642341.jpg)
macOS can save space by storing your content in the cloud. This isn't a backup, but it includes new tools to make it easier to find and remove large or unwanted files before you make a backup.
Use Optimized Storage in macOSErase or format a storage device
You can use Disk Utility if you need to erase or format a storage device.
Learn how to use Disk UtilitymacOS Community
If you can't back up your Mac
We'll find the best support options for you.