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.
For example, if I see that my Mac’s CPU is running hot, or there’s a lot of network throughput, I can click to view a menu and find which app is the culprit. IStat Menus also offers better. Mac veterans have been singing Alfred's praises for years, but some of Apple’s newer users might not have heard about the mighty app launcher. Free to all but the most serious professionals. If 'TCP Test Tool' can run on the Mac through Wine, you might also consider trying WineBottler to save a self-contained version of 'TCP Test Tool.' I use WinAmp and TextPad on my Mac like this. – username Jun 16 '11 at 1:30. Add a comment 3 Answers Active Oldest Votes. The closest free.
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.
Cltest For Macbook Air
| macOS | Latest version |
|---|---|
| macOS Catalina | 10.15.7 |
| 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 |
Back up your Mac
Cltest For Macbook
And your memories. A few simple steps can save you from losing your favorite photos and files.
Learn how to back up your MacMac service and repair
Learn about AppleCare+ and the Apple limited warranty coverage, start a service request for your Mac, and find out how to prepare your Mac for service.
Learn more about repairsCltest For Macbook Pro
Get AppleCare+ for Mac
With AppleCare+, you’re covered. Get accidental damage coverage and 24/7 priority access to Apple experts.
Have a question? Ask everyone.
The members of our Apple Support Community can help answer your question. Or, if someone’s already asked, you can search for the best answer
Ask nowTell us how we can help
Answer a few questions and we'll help you find a solution.
Get supportApple Service Programs