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 product or feature? Which versions are earlier (older) or later (newer, more recent) than the version currently installed? To find out, learn which version is installed now.

The Software Update.app bundle is exactly where the reference states that is it! Its fully qualified pathname is /System/Library/CoreServices/Software Update.app and you can see it in Finder by starting in the root of the Macintosh HD or if in iCal when selecting the file to open, make sure you start navigating to it from the root of the Macintosh HD (or whatever the name of your HD is). Aug 13, 2015  Today Apple released 10.10.5, the fifth (and final?) major update to OS X Yosemite. Update any supported system using the built-in Software Update functionality through the Mac App Store, or by using the standalone installer available from Apple.com. Download the OS X 10.10.5 Combo Update. From the Apple logo menu select “About this Mac”. Mine says iMac (2.15, Late 2012). Then check the compatibility list at How to get macOS Sierra and then follow the download and installation instructions. My older iMac (Early 2009) just missed out. Nov 01, 2014 That changed with Mac OS X High Sierra, Sierra, Yosemite, and El Capitan, and now Mac users who would rather take a hands-off approach to maintaining their Macs OS X software updates can choose to automatically check for and install core system updates.

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'll see the macOS name, such as macOS Mojave, followed by its version number. If some product or feature requires you to know the build number as well, click the version number to see it.

How To Check For Software Updates On Mac Yosemite 2017

This example shows macOS Catalina version 10.15 build 19A583.

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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. And as updates that change the macOS version number become available, this article is updated to show the latest version of that macOS.

How To Check For Software Updates On Mac Yosemite Download

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 installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos.

How To Check For Software Updates

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How To Check For Software Updates On Mac Yosemite Update

• Always use the macOS that came with your Mac, or a compatible newer version.
• Learn how to reinstall macOS from macOS Recovery.