Defender Jack Ainsley has put pen to paper on his new six-month deal aiming to do enough to win himself an extended stay at Portman Road. The 20-year-old was amongst the 21 players whose contracts were up at the end of the season.
Ainsley said: "The manager has said that it's down to me to get my head down and show him I am worth a longer contract and that's what I've got to do.”
The Felixstowe-born academy product has made two Carling Cup starts for the Blues in addition to a single Championship appearance as a sub on the opening day of the season at Middlesbrough. The one-time striker has also spent spells on loan at Histon and Rushden in the last couple of seasons.
Irishman Conor Hourihane also recently signed a six-month deal, while fellow midfielder Jamie Griffiths has agreed similar terms.
Defender Tom Eastman, who has also been offered another six months at Portman Road, is now the only one of the 21 with his future still hanging in the balance.
Brian Murphy, David Norris, Gareth McAuley, Alan Quinn, Kevin Lisbie, Pablo Couñago, who has not been offered a deal by Crystal Palace, Reggie Lambe, Billy Clark, David Cawley and Ian McLoughlin are leaving the club this summer.
Carlos Edwards triggered an appearance clause on his existing deal and is staying at Town for another season, while Damien Delaney recently put pen to paper on a new contract which will keep him at Portman Road for two or three years depending on the number of games he plays in his second season.
Keeper Arran Lee-Barrett has signed a new two-year contract, while midfielder Colin Healy, who underwent a hernia operation last week, and defender Troy Brown have agreed one-year deals.
Striker Ronan Murray and midfielder Luke Hyam signed one-year contracts last month, while academy duo Cody Cropper and Cormac Burke have been given one-year professional deals while they complete their scholarships next season. Academy first-year left-back Joe Whight has been offered a two-year pro contract.
The only players released by the academy this summer were second years Josh Meekings and Rory McKeown.