Did you just get a new PS4 for Christmas but recently bought a new game for your PS3? Well you might be able to get a digital copy of the game for your PS4! So far it appears to only be available for four games: Assassin’s Creed IV Black Flag, Call of Duty: Ghosts, Battlefield 4 and Injustice: Gods Among Us.
If you want to know how to upgrade Sony has a guide to walk you through the steps. Good luck!