Can you send me a link that will help me update to latest software

that Mac can run up to and including Big Sur.

you can find the downloads and instructions here > How to download and install macOS - Apple Support.

and if you have the time, I would upgrade one macOS at I time up to Big Sur. and at minimum, I think I would at least upgrade to Catalina before going on to Big Sur.

and finally, note that with Catalina and Big Sur, any 32 bit applications you have will stop working. you will need to see if they have a 64 bit version. and if not, either stop upgrading at Mojave, or find sutable replacements for them.

yolandagarduo Said:

"Can you send me a link that will help me update to latest software: MacBook Air (13-inch, Mid 2013)"

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For reference....

Updating the 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 Sonoma is Compatible with these Computers - Apple Support
• 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.