In addition to that, the update presumably includes data for the first DLCs releasing with the game, namely the free Holiday Pack and the Season Pass-exclusive Holiday Pack+, but those aren’t yet available on the PlayStation Store, and they will probably be released tomorrow.
If you are one of the three people out there unfamiliar with the game, you can also read our review.
It was supposed to release on December 22nd, but apparently Square Enix pulled the trigger one day earlier: Final Fantasy XV update 1.03 has just been made available on the PlayStation Network and Xbox Live.
In case you missed it, you can read about the full content of the free Holiday Pack and of the Holiday Pack+ here and here, and you can also watch the recently-released accolade trailer for the game.