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.
New Mac Computers 2018
Jul 31, 2020. From 2011 to 2016, Apple sold its Apple Thunderbolt Display, a 27-inch 2560x1440-pixel monitor that relied on a Thunderbolt 2 connector to carry data to and from a Mac along with a MagSafe.
If your macOS isn't up to date, you may be able to update to a later version.
Which macOS version is installed?
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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 | 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.
If your Mac was just repaired and now starts up to the setup assistant, learn how to restore your Mac from a backup.
Check for an Internet connection
It's best to set up your Mac somewhere that has a Wi-Fi network or other connection to the Internet. Your Mac will use that connection to complete certain setup steps. If the network requires a password, have the password ready.
Plug in only the essential devices
If you're using an external keyboard and trackpad or mouse, turn them on or plug them into your Mac. If you're using an external display, plug it in and turn it on as well, but don't connect any other peripherals yet. And of course plug in your Mac.
If you've never used a trackpad before, here's a tip: To click, press down or tap on the trackpad surface.
Turn on your Mac
Some Mac notebooks automatically start up when you connect the computer to power or open its lid. On other Mac computers, press the power button to start up.
Use the setup assistant
A series of windows will ask you for setup details, such as your Apple ID. If you've used iTunes or have an iPhone or iPad, you already have an Apple ID. Use the same Apple ID on your Mac.
We recommend that you let the setup assistant turn on FileVault, iCloud Keychain, and Find My Mac. You can also let it transfer information from another computer or Time Machine backup, or you can do that later using Migration Assistant.
You'll be asked to create the name and password of your computer account. You'll need this information to log in to your Mac, change certain settings, and install software.
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Check for software updates
When the setup assistant finishes setting up your Mac, you'll see the Finder, which includes a menu bar at the top of the screen and the desktop below that.
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Click App Store in the Dock at the bottom of your screen, then find and install any software updates. After your software is up to date, you can connect any printers or other peripherals and begin using your Mac.