How can I update my software?

"How do you people seeing it: How can I update my software"

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Updating a Mac:

Check for updates from the developer. Your macOS is High Sierra, and that is a macOS that has not has an update available for years.

In depth…

Updating a macOS:

Determining which Update(s) will Install:

I. Verify Compatibility:

A. Start Here: Learn About Compatibility and how to Identify your Specific Mac Model - Apple Support

B. How to Verify:

I Reveal your Model:

What is the Model of your Mac? To find out...

1. Go to: Apple menu
2. Click: About this Mac
3. View: Second Line-Down

then...

II. Compare the Results:

See if the Model you found is shown here:

• macOS Ventura is Compatible with these Computers - Apple Support
• macOS Monterey is Compatible with these Computers - Apple Support
• macOS Big Sur 11 Hardware Requirements - Apple Support
• macOS Catalina 10.15 - Hardware Requirements - Apple Support
• macOS Mojave 10.14 - Hardware Requirements - Apple Support
• macOS High Sierra 10.13 - Hardware Requirements - Apple Support
• macOS Sierra 10.12 - Hardware Requirements - Apple Support
• OS X El Capitan 10.11 - Hardware Requirements - Apple Support
• OS X Yosemite 10.10 - Hardware Requirements - Apple Support

III. If Compatible:

Back Up your Mac First:  Be certain you Create a Time Machine Backup of your Mac, so that way you can have something to restore your Mac from, should anything go wrong with the reconfiguration.

This it’s a little bit tricky, if you have an old Mac like I that have a MacBook Pro early 2011, you won’t get upgrades to newer macOS versions, in fact at certain point you won’t recibe any kind of upgrades, nor from apps or OS, but here is something I notice on my old 2011 MacBook Pro… early this year I did a clean install and formatted as much as you can the SSD unit and remove the old SuperDrive, previously I got macOS High Sierra 10.13.5 that apparently was the last version that I though I saw on the security updates report, but… after the clean restore and reinstalling all high sierra updates up the point to get were I was (10.13.5), surprisingly I got an other update, yes… as you probably had assumed, MacOS High Sierra 10.13.6!!! And I don’t think I’d have missed but I’m getting older so… anything is possible. Anyway, because of the release date version of 10.13.6, I probably miss it, the point is that there is something very strange going around this matter. So, better doble or triple check what is the last version that your Mac support, not to be suspicious but I’ll recommend to check on an other computer just in case. As I understand some extreme updates can be available if there were any potentially dangerous threats been recently documented. Hope this may help.