In 2012 Sony introduced a cross-buy initiative whereby a game available for multiple PlayStation devices need only be purchased once. Players who download the PlayStation 3 version of a game can transfer to the PlayStation Vita or PlayStation 4 version at no extra cost, and vice versa. Users have immediate access to supported titles in their digital game library, even when they upgrade to the newest system.[43][44] The initiative was later extended to include PlayStation 5.[45]