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). Note the difference between an update and an upgrade.

We can provide more specific advice if we know more about your computer model, year, and specifications. 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'. Copy and paste the information here, but omit the serial number and UUIDs (if present). More about this in 'About System Information [Profiler] on your Mac' - https://support.apple.com/HT203001

Softonic-recensie Yosemite just got bigger. El Capitan, or Mac OS X 10.11, is the latest update of Apple’s operating system for Mac. This marks the first time in a while that the release of OS X and iOS (iOS 9) have appeared almost simultaneously – allowing for more synergy between the platforms. Mac OS X El Capitan 10.11.6 was released in 2015, the basic purpose of this release is to provide better security, performance, and reliability features. This release of Mac OS X is a complete pack when you want stability, privacy, performance and better file search at the same time.

You can also use the computer information and the links below to yourself determine what is possible with your computer.

Click on this link to read how to get other versions of macOS - https://support.apple.com/HT211683

- This article also has links to system requirements for each OS version which you should check against your exact computer model. Note some of the model identifier articles are outdated. For any model produced in the last 5 years or so you should use the system requirements links for each OS version instead. This web site also has a reliable presentation of model and OS version compatibility: https://eshop.macsales.com/guides/Mac_OS_X_Compatibility

- Make sure you have more RAM than what is noted as 'minimum' for any particular system or your computer may run slowly.

- 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.

- Sierra, El Capitan, and Yosemite download as a .pkg. Click on this to have a converted version placed in your Applications folder as an 'Install OS...' application. Run the installer and follow the directions.

- Upgrades may take some time (up to an hour or more) to install, with restarts and blank screens.

Mac Os El Capitan Wikipedia

Back up your data in case something goes wrong --> Back up your Mac with Time Machine - https://support.apple.com/HT201250 or use a cloning tool.

Check if your old apps will still work with with the OS you want to install - https://roaringapps.com/apps This is particularly critical if you are upgrading to Catalina or newer.

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Feb 1, 2021 9:33 AM