You may find you need to use Safari to get links for High Sierra and later using the Mac App Store application to open a functioning page. Make sure you have more RAM than what is noted as "minimum" for any particular system or your computer may run slowly. This web site also has a reliable presentation of model and OS version compatibility: For any model produced in the last 5 years or so you should use the system requirements links for each OS version instead. Note some of the model identifier articles are outdated. This article also has links to system requirements for each OS version which you should check against your exact computer model.
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You can also use the computer information and the links below to yourself determine what is possible with your computer.Ĭlick on this link to read how to get other versions of macOS. More about this in "About System Information on your Mac". Copy and paste the information here, but omit the serial number and UUIDs (if present). To get more information about your computer choose Apple menu > 'About This Mac' in the upper left corner of any window, then "More Info." or "System Report". We can provide more specific advice if we know more about your computer model, year, and specifications. Note the difference between an update and an upgrade. The various ways of checking for software may only show updates to the current main system version you are running (e.g., 10.4.8 -> 10.4.11), not upgrades to a higher system version such as a jump from El Capitan (10.11) to Catalina (10.15).