How do I update OS X El Capitan 10.11.6
How do I update OS X El Capitan 10.11.6?
MacBook Air 13″, macOS 10.13
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Back up your data, check your applications for compatibility, and depending on which MacBook Air model you have, click on High Sierra, Mojave, Catalina, or Big Sur. It needs to be at least a late 2010 one to be capable of a newer OS.
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