It's version 10.11, the twelfth edition of OS X. MacOS El Capitan, the replacement of Yosemite, was announced during the WWDC of June of 2015. In other words, the operating system based on Unix and developed by Apple that's installed on its range of Macintosh laptop and desktop computers. Some updates may be free, some may be paid.MacOS is the current name of the former OS X, previously known as Mac OS X. Upgrades may take some time (up to an hour or more) to install, with restarts and blank screens.īack up your data in case something goes wrong -> Back up your Mac with Time Machine - or use a cloning tool.Ĭheck if your old apps will still work with with the OS you want to install - This is particularly critical if you are upgrading to Catalina or newer. Run the installer and follow the directions. Click on this to have a converted version placed in your Applications folder as an "Install OS." application. Sierra, El Capitan, and Yosemite download as a. 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 Note some of the model identifier articles are outdated.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. 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). Use this app to discover which apps you haveĪre 32bit, then contact the developers of the software to see Some updates may be free, some may be paid. Your Mac is probably running 32bit apps and these will need to be updated to 64bit apps, If you are considering upgrading to Catalina or Big Sur be warned they do not support 32bit apps. How to upgrade to macOS Big Sur - Apple Support If you want to or are able to install Big Sur, open Safari and click on the link below. Restart, click on the link again, the App Store should say ‘Get' or 'Download'. Go to the Applications folder locate Install macOS ******.app. If the App Store says ‘Open’ then it is detecting a previous download of the install app Then go to the Download OS section and click on the OS you want to install.īefore upgrading make a full back up of your Mac.Ĭheck that third party apps you use have updates available for the new OS.Ĭheck that your printers/ scanners etc have updated drivers and software available for the new OS.Ĭonnect your mac to your router via cable rather than rely on WiFi.ĭo not use your mac while it is downloadingĪnd do not use any other devices that share the same internet connection. Go to Check Compatibility to see if your mac qualifies for the OS upgrade you want. How to get old versions of macOS – Apple Support Which OS you can upgrade to will be governed by which model and year your mac is.Ĭlick on the top left of your screen click on About This Mac to find out the year of your mac. The App Store Updates page only informs you of updates available for the OS you are running.
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