The biggest changes from the last MacBook model are the inclusion of a Thunderbolt port, and the use of the Intel Core i5 processors.
Are you going to buy one? I already have the previous model MacBook Air and I went for the upgraded processor, ram and SSD, so the only real advantage for me would be the new processors, but to be honest I don’t really do anything that processor intensive so for now I will probably stick with what I have. Probably……Learn more from the Apple website
The specs for the two models are below: