OS updates options for macbook air 13" early 2015 running El Capitan 10.11.6
Trying to update an old MacBook AIR, 13" early 2015, currently on El Capitan 10.11.6, but when I try updating get message no update available.
Surely a way to get a more upto date OS, was hoping to get to Catalina although I expect would need several intermediary versions....