need to upgrade to 10.14 how?
I have OS X El Capitan 10.11.6 and I need it to be 10.14 for a program I need to run. How do I get to 10.14?
MacBook Air 13″, OS X 10.11
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Wether you can get 10.14 will depend on the model of Mac you have. For a MacBook Air it needs to be a Mid 2012 or newer model to update to 10.14 Mojave. link ➡️ macOS Mojave - Technical Specifications
You can get the update from here: link ➡️ How to download macOS - Apple Support
The download link in the support document above should open the Mac App Store to the Mojave entry.