Forza Horizon 6 Series 4 mostly centers on the Horizon Mascot Party Festival Playlist, but the Aug. 10 update brought a decent amount of permanent content alongside the reward cars: sign language support for cinematics, a temporary Time Attack Circuit, 47 EventLab props, and fixes for several bugs that have survived since launch.
The patch was released on Aug. 10 across XBOX Series X|S, the XBOX app on PC, and Steam, while the Horizon Mascot Party content goes live on Aug. 13. The Playlist brings 10 reward cars, three of them new to Horizon, and we’ve covered all of those separately in our full Forza Horizon 6 Series 4 Festival Playlist guide.