Macbook Air Upgrade USB Patched to Install MacOS 15 Sequoia on Unsupported Macs
Once upgraded you will be able to continue to apply the latest updates. MacBook 12" Early-2015 (MacBook8,1). MacBook 12" Early-2016 (MacBook9,1). MacBook 12" Mid-2017 (MacBook10,1). MacBook Air 11" Mid-2012 (MacBookAir5,1).