The celebration will include "surprises, collaborations, rewards, community activities, and more", with a dedicated website live now.
As a part of the anniversary celebration, Ubisoft has already updated Assassin's Creed Origins with 60 fps support on both Xbox X/S as well as Playstation 5 consoles, and launched the Discovery Tour: Viking Age, a standalone experience for consoles, Stadia, and the PC.
In September, Ubisoft is preparing a big event that will "unveil the future of Assassin's Creed". Since the Assassin's Creed Infinity is already under development, we guess that it will be a big part of that event.