I can't update my early 2015 MacBook Air 11 from Catalina to Big Sur?
I recently bought a old MacBook Air early 2015 which I see is compatible to be upgraded to Mac OS monetary. but either can I see any update in my software update section nor can I update it using app store or terminal, I also tried to update is using pkg file but it shows Mac OS Big Sur can't be installed on this Mac does anyone know any solution about this problem I am fed up and I have tried almost everything
MacBook Air 11″, macOS 10.15