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

1. Upgrade From Mac Yosemite To Mac Sierra
2. Mac Upgrade From Yosemite To Mojave
3. How To Upgrade From Mac Yosemite

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

Why downgrade macOS Big Sur. Big Sur is a great update to the Mac operating system (read our Big Sur review), with some useful features and some iOS inspired changes.However, as with Catalina.

• 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.
• Why Mac OS X Yosemite? Well the mac OS X series is very well known by the users when it comes to the hardcore performance of the machine when installing with the operating system. When the update was released the upgrade received a very good response from its users.

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.

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 Big Sur. As updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.

Upgrade From Mac Yosemite To Mac Sierra

Mac Upgrade From Yosemite To Mojave

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.

How To Upgrade From Mac Yosemite