How to update my Mac OS from Mavericks? I think I missed one important update years ago. Now the Mac OS Big Sur installation won't work for me.
I have a MacBook Air 6,2 (earlier 2014), I have tried downloading the update combos from https://support.apple.com/downloads/macos. I downloaded them, I ran them, but it doesn't restart or anything, nor does it change the version of OS X in the "About this Mac". It is still 10.9.5. I have 390Gb free on the disk.
I don't even know which newer OS to install. In my "Software Udpdate" there is nothing compatible to update since years ago.
Thank you very much!
