Got the red and the green decks today. Not bad decks, but I haven't looked at magic cards for about 4 years and most of these were not new to me. I was hoping to see something different.
They're probably from the base set (although you probably knew that already). While they do update each edition of the base set, they also retain a lot of older cards in it.
They are all from the base set, the tenth. I have no idea if that's the current one or not.