Even for those who don't own the premium version, IO Interactive has released entirely new content for free to all owners of the base game:
Permanent access to the opening tutorial missions where you can earn XP and unlocks that carry over to the full game. HITMAN 3 free
While (now rebranded as HITMAN World of Assassination ) is a paid title, you can experience a significant portion of the game for free through the official Free Starter Pack (or Free Demo) and rotating content updates. The HITMAN 3 Free Starter Pack Even for those who don't own the premium
Bonus missions like "The Icon" in Sapienza or "A House Built on Sand" in Marrakesh. HITMAN 3 free