MacBook Air (13 inch, Early 2015 model) with Mac OS - X - Yosemite - Version 10.10.5
How do I upgrade my laptop to the current Mac OS - I used to update software and upgrade OS regularly and had no issues.
Recently I had to reset my laptop to factory settings and my OS has reverted to Mac OS - X - Yosemite - Version 10.10.5
Will be grateful for advice on how to get the latest OS. AppStore shows no software updates available for the current installed OS. Many thanks
MacBook Air 13″, OS X 10.10