Aug 25, 2020.
- Aug 19, 2020.
- Testing conducted by Apple in July 2020 using preproduction 3.6GHz 10-core Intel Core i9-based 27‑inch iMac systems with Radeon Pro 5700 XT graphics with 16GB of GDDR6, 128GB of RAM, and 8TB SSD, and shipping 3.6GHz 8-core Intel Core i9-based 27‑inch iMac systems with Radeon Pro Vega 48 graphics with 8GB HBM2, 64GB of RAM, and 2TB SSD.
- Find the best Mac for you. Get 1 year of Apple TV+ free when you buy a Mac.† Try it free. AppleCare+ for Mac Every Mac comes with a one-year limited warranty and up to 90 days of complimentary technical support. AppleCare+ for Mac extends your coverage to three years from your AppleCare+ purchase date and adds up to two incidents.
- Mar 18, 2020.
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?
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.
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 High Sierra||10.13.6|
|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|
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 backup
Store 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 Drive
Restore 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 backup
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 service
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.
Free up storage on your Mac
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 macOS
Erase 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 Utility
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If you can't back up your Mac
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