OK, so I'm still stuck in the past, but I have an old MacBook with Leopard, and my other two machines have Snow Leopard. I would like them all to be on the same system.
Is it possible to upgrade from Leopard to Snow Leopard or, if I want all the machines on the same system, do I need to change all three to Lion?
Is it possible to upgrade from Leopard to Snow Leopard or, if I want all the machines on the same system, do I need to change all three to Lion?