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How Do I Update My Old Computer?

I was ill advised not to update my computer a long time ago! Now, of course it is very out of date and I would like to update it as far as I can.

It is an iMac (21.5 inch, late 2013)
Processor – 2.9 GHz Intel Core i5
Memory – 8 GB 1600 MHz DDR3
Model identifier – iMac 14, 3.

It has had one upgrade to OS X Yosemite, and that is all!

I have found out that I can update it up to the latest compatible operating system: macOS Catalina 10.15.7, but can I update it from where it is, or will I need to do this in stages from OS X Yosemite, which is a number of upgrades behind!
Amanda Le Bail

Comments: 2 Responses to “How Do I Update My Old Computer?”

    3 years ago

    I actually have a video on this coming up. But the page I point to in the video is already there. Go to and there you'll find a link to get Catalina from the Mac App Store. You can upgrade directly from Yosemite.

    Amanda Le Bail
    3 years ago

    Thank you so much Gary for your quick response.
    I will try this out and look forward to working with my updated computer soon :)
    Your help and advice is much appreciated.

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