Forbes reported that Slow Horses Season 6 set the best score yet on Rotten Tomatoes. That score outdoes every previous season. Apple TV has ordered another season for Season 8. The renewal adds a new season. Variety, Dark Horizons and UPI confirmed the renewal. The outlets confirmed the story. Gary Oldman said the Queen and Prince William are big supporters of the series. He described the royal pair as devoted viewers. Aimee-Ffion Edwards, who plays a cocaine-snorting spy in the series, discussed her role with The Guardian. She told The Guardian about her fearless approach. She also recalled playing 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.