Is your Mac up to date with the latest version of the Mac operating system? Is it using the version required by a product 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.

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FYI, Snow Leopard 10.6.2 (x86-modified Hazard distro) under VirtualBox 3.2.8 (no OS X Guest Additions supported) seems to be an order of magnitude slower than VMware Snow Leopard 10.6.2 Retail with VMware Tools (torrent: “Mac OS X 10.6.2 Virtual Machine for VMware”). Core 2 Quad, Raptor RAID 0, Windows 7 host, 2GB guest RAM. MacOS Big Sur, unveiled in June 2020 at WWDC, is the newest version of macOS, was released on November 12. MacOS Big Sur features an overhauled look.

If your macOS isn't up to date, you may be able to update to a later version.

1. The 'classic' Mac OS is the original Macintosh operating system that was introduced in 1984 alongside the first Macintosh and remained in primary use on Macs until the introduction of Mac OS X in 2001. Apple released the original Macintosh on January 24, 1984; its early system software was partially based on the Lisa OS and the Xerox PARC Alto computer, which former Apple CEO Steve Jobs.
2. It was first released in 1999 as Mac OS X Server 1.0, with a widely released desktop version— Mac OS X 10.0 —following in March 2001. Since then, several more distinct desktop and server editions of macOS have been released.

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 Big Sur, followed by its version number. If you need to know the build number as well, click the version number to see it.

What is the latest macOS version?

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 Big Sur. As updates that change the macOS version number become available, this article will be 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.

One of the most appreciable iOS features “Night Shift” is now available on Mac starting with macOS Sierra 10.12.4. Once enabled, it transfers the colors of the display to the warmer end of the color spectrum. As a result, your eyes won’t burn or strain.

The obvious advantage of using Night Shift on Mac is that you will have a better night’s sleep. Depending on your need, you can either set it to get activated automatically or set a custom schedule. Let’s find out how it works!

How to Enable and Use Night Shift in macOS Sierra on Mac

Note: To use Night Shift on your Mac, you need to make sure your computer is compatible and running macOS Sierra 10.12.4. Night Shift doesn’t work with the connected televisions or projectors.

Following are the Mac models and displays that support Night Shift.

• MacBook (Early 2015 or later)
• MacBook Air (Mid 2012 or later)
• Mac mini (Late 2012 or newer)
• MacBook Pro (Mid 2012 or newer)
• iMac (Late 2012 or newer)
• Mac Pro (Late 2013 or newer)
• Apple LED Cinema Display
• Apple Thunderbolt Display
• LG UltraFine 5K Display
• LG UltraFine 4K Display

Step #1. Click on Apple menu at the top-left corner of the screen.

Step #2. Next, you need to click on System Preferences.

Step #3. Click on Displays.

Step #4. Now, you have to click on Night Shift tab.

You can now create a custom Night Shift schedule or set it to get activated automatically from sunset to sunrise. To do so, simply click on the drop-down menu, select a schedule i.e. sunset to sunrise or set a custom schedule as per your need.

If you want to set a custom schedule, you have to select the time range during which you want to use Night Shift.

How to Adjust Night Shift Color Temperature on Mac

You can adjust the color temperature when the Night Shift is active. According to Apple, warmer settings might affect the appearance of some onscreen motion.

Step #1. Click on Apple menu → System Preferences.

Step #2. Click on Displays.

Step #3. Click on Night Shift tab.

Step #4. Now, you need to drag the slider left or right in order to make the color temperature more or less warm.

How to Disable Night Shift on Mac

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If ever don’t want to keep Night Shift enabled, you can easily disable it.

Step #1. Click on Apple menu → System Preferences.

Step #2. Click on Displays.

Step #3. Click on Night Shift.

Step #4. Now, uncheck the box next to Manual.

If you have scheduled Night Shift, it will be activated at the scheduled time. If you want to completely disable it, just select Off in Drop-down menu next to Schedule.

Alternately, you can click on the Notification Center button located at the top-right corner of the screen. Then, scroll down and click the Night Shift switch to turn it On/Off position.

That’s it!

The Bottom Line

Night Shift is a very helpful feature for users. It had first arrived in iOS 9.3 for iPhone and iPad. If you are someone who uses Mac regularly at night, it would be of immense help to you. What’s your take on it?

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You might want to read these posts as well: how to enable/disable Night Shift on iPhone, how to enable dark Mode in tvOS, how to enable dark mode on Mac, and how to enable Night Mode in Twitter etc.