software updates

Hi mekala97,

Welcome to the Apple Community, where some of us do our best to help each other.

Here is a list of the computers that Big Sur can be installed on.

https://support.apple.com/en-us/HT211238

(For your Mac:

You can find the year of manufacture by clicking the Apple icon in your top menu bar, and choosing "About this Mac")

THEN

There is a link on the page that opens from the link above, to "Learn how to upgrade to Big Sur".

Hope this helps you :)