I am a new mac user, and am still getting used to the different way things work. The main reason I
switched to mac was their reputation for security. One of my friends sold me an older mac to get
So now I have an 8 year old mac with Mojave 10.14, which I would like to upgrade to a newer OS.
However, I was told by another friend that I cannot upgrade to the latest OS. Is this true? I can
understand if there was a difference, for instance 32 bit and 64 bit, like Windows versions.