I have an Early 2014 13" MacBook Air running OS X 10.9.5 Mavericks. In my attempt to upgrade Google Chrome to the latest version, I discovered my Chrome version only went up to 65. (The latest Google Chrome is already at version 80). The reason Chrome won't give me the latest update is because my OS is not supported anymore. So obviously I now want to install the latest OS X.
Unfortunately, when I go to: Apple > Software Update the App Store opens to the Updates tab and is empty, saying "No Updates Available".
Even if I do a search in the app store, I can't find any of the new OS X versions.
How do I find and update to the latest OS X?