There will not be a season 4 of "The Summer I Turned Pretty." The series ended with season 3 because it has adapted all three books of Jenny Han's trilogy, and there is no source material for further seasons. Jenny Han, the creator, and showrunner, has stated that "Three books, three seasons: it feels right to me," indicating that the story has been fully told over the three seasons. However, there is news of a feature-length movie to continue the story beyond the series, offering fans a chance to see more of the characters in that format.
