The Bulls have offered Richard Rose, Ryan Green, and Darren Jones new contracts.
The official website reports that the club are still speaking with players, and they hope to release a full list of those retained and released later today.
Meanwhile Bristol Rovers are to offer Andy Williams a new contract. Boss Paul Trollope told the press: "We are in discussions with Andy regarding a new contract. We feel he's made steps forward this year. He's had some fantastic moments during the campaign and we would like to seem him here next season."