According to IO Interactive's Chief Programmer, Anders Wang Kristensen, the HDR support will allow the game to take advantage fo premium HDR displays, giving better contrast between dark and bright images, better details like the sun and explosions and more.
In addition to HDR support, Hitman will also be getting 4K support on the Playstation 4 Pro console.
The new update, which was announced on the official Hitman Twitter, comes hard on the heels of the arrival of the Complete First Season, which is already available online but will be also coming as a physical copy, including the SteelBook Edition on January 31st.
IO Interactive has also released the new 101 Gameplay trailer which shows all Hitman expansions.