The 28-year-old joined the Hatters in 2019 and was part of the squad that produced the Great Escape on the final day of the 2019-20 season and helped maintain their second-tier status the following campaign with a successful 12th place finish.
He made 68 appearances in total, scoring three times. His first was a memorable winner against Middlesbrough, while the following two came the season just gone in back-to-back wins versus Sheffield Wednesday and Nottingham Forest.
Everyone at Kenilworth Road would like to thank Ryan for his contribution to the club. We look forward to welcoming him back to the Kenny next month for the pre-season fixture against Portsmouth.