Summary
It is possible to determine which macOS can be installed on a Mac by identifying the Mac model and checking the compatibility list. For example, MacBook Pro (13-inch, M1, 2020) can run macOS Big Sur
1
, while MacBook (Retina, 12-inch, 2017) can run macOS Monterey.
1
It is also possible to downgrade a Mac to an older version of macOS, such as the version that was available on the Mac at the time of purchase.
2
However, it is unlikely that an older version of macOS will include the necessary drivers for the hardware on the newer Mac.
2
According to
Summary
This article provides a comprehensive list of the different versions of macOS and Mac OS X that are compatible with each Mac. It explains that the operating system that was available on the Mac at the time of purchase is the oldest version that can run on that Mac, and that it is unlikely that an older version of macOS will include the necessary drivers for the hardware on the newer Mac. It also provides advice on how to identify a Mac and how to downgrade it to an older version of macOS.
macOS compatibility: What OS can my Mac run? | Macworld
macworld.com
Summary
From the Apple menu in the corner of your screen, choose About This Mac. You should see the macOS name, such as macOS Ventura or macOS Monterey, followed by its version number. If you need to know the build number as well, click the version number to see it.
Find out which macOS your Mac is using - Apple Support
apple.com
Summary
MacBook Pro. Learn how to identify your MacBook Pro. MacBook Pro (13-inch, M1, 2020) MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports) MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports)
MacBook Air. Learn how to identify your MacBook Air. MacBook Air (M1, 2020) MacBook Air (Retina, 13-inch, 2020) MacBook Air (Retina, 13-inch, 2019) MacBook Air (Retina, 13-inch, 2018)
MacBook. Learn how to identify your MacBook. MacBook (Retina, 12-inch, 2017) MacBook (Retina, 12-inch, Early 2016) MacBook (Retina, 12-inch, Early 2015)
iMac Pro. Learn how to identify your iMac Pro. iMac Pro (2017)
macOS Big Sur is compatible with these computers - Apple Support
apple.com
Summary
This article provides an overview of how to install an older version of macOS on a Mac, including making sure your Mac can run the version, where to download the version, and how to install it. It also provides tips on how to avoid issues when installing an older version, such as reverting to the version of macOS installed when you purchased your Mac, and how to run two or more versions of macOS alongside each other.
How to install older versions of macOS or Mac OS X | Macworld
macworld.com
The latest version of macOS is macOS 13.0 Ventura, which Apple released on October 24, ... To see which version of macOS you have installed , click the Apple ...
What Is the Latest Version of macOS?
howtogeek.com