Town have taken up the one-year option on winger Gwion Edwards’s contract.
The 27-year-old was among the players whose deal was due to be up at the end of June but the Welshman will now be spending at least another season at Portman Road.
Edwards has made 52 starts and 14 sub appearances for the Blues, scoring eight goals having signed for £750,000 from Peterborough in the summer of 2018.
Previously the Blues took up options to keep youngsters Andre Dozzell, Armando Dobra, Brett McGavin and Harry Wright for a further season.
Dobra, 19, has all but agreed a new three-year deal with the option for a further season, while talks with Dozzell, 21, have been ongoing since last summer and discussions with McGavin, 20, are also under way.