When did Quint leave Gunsmoke?

Quint Asper, played by Burt Reynolds, left the television series "Gunsmoke" after its 10th season, specifically at the end of the 1964-1965 season. His character was written out to allow Reynolds to pursue other opportunities, including a film career. Quint's departure marked the end of his role in the series, which had a long run from 1955 to 1975.