The next-gen update is free for current owners, but not if they got the game via PlayStation Plus in March. It came out in June, along with an expansion - Episode Intermission - featuring awesome ninja Yuffie Kisaragi.
One major game that got an update was last year's Final Fantasy 7 Remake. This lets you play with 4K dynamic resolution at 60 frames per second and delivers shorter loading times, making for smoother gaming experience with less waiting around. But some publishers go a step further with the next-gen console, by allowing you to upgrade PS4 games to the PS5 versions for free. You can play most PlayStation 4 games on the PlayStation 5 thanks to the new Sony console's excellent backward compatibility feature. Yuffie and her Materia-grabbing ways have come to PS5.