Forbes reported that Slow Horses Season 6 set a fresh high on Rotten Tomatoes. That score beats every prior season. Apple TV has renewed the spy series for Season 8. The renewal adds a new season. Variety, Dark Horizons and UPI confirmed the renewal. The outlets shared the update. Gary Oldman said the Queen and Prince William are serious viewers of the drama. He described the royal pair as devoted viewers. Aimee-Ffion Edwards, who plays a cocaine-snorting spy in the drama, discussed her role with The Guardian. She told The Guardian about her fearless approach. She also talked about her time in a boys' rugby team. That background was part of the conversation. Cosmopolitan reported when Season 6 becomes available on Apple TV. The magazine pointed to the new season's premiere window.