Midfielder Jay Tabb has had his contract with Ipswich Town extended by a further year.
The 31-year-old scored twice in 42 appearances this term to automatically earn an extension to his deal in Suffolk.
In total, Tabb has made 81 appearances for the Tractor Boys since first joining on loan from Reading in 2013.
Meanwhile, five other out-of-contract players have been told by Blues boss Mick McCarthy that they can seek a new club this summer.