Arsenal say they remain in negotiations with winger Reiss Nelson over a new deal, but midfielder Ainsley Maitland-Niles has been released.
Nelson, 23, whose contract is set to expire on 30 June, scored three Premier League goals last season, most notably netting a 97th-minute winner in a 3-2 victory against Bournemouth in March.
England international Maitland-Niles, 25, spent last season on loan at Southampton. He made 22 Premier League appearances for the relegated Saints.
He has also had loan spells with Roma and West Brom, but has not played for Arsenal since 2021 and leaves a club he joined as a six-year-old having made his first-team debut shortly after his 17th birthday.