Coventry City captain Michael Doyle has triggered a contract extension and will remain at the promoted League Two club until the summer of 2019.
This season, the 36-year-old midfielder scored three goals in 52 appearances for the Sky Blues, who beat Exeter in the League Two play-off final.
Defender Dominic Hyam, 22, is in discussions about extending his deal.
Meanwhile midfielder Reise Allasani has joined on a two-year deal from Dulwich Hamlet for an undisclosed fee.
Allasani, 22, started his career at Crystal Palace academy and has represented England at under-16, under-17 and under-18 level.
He scored 17 goals in 31 league matches for Dulwich last season as they secured promotion to National League South.
Coventry have also decided to release Devon Kelly-Evans, Dion Kelly-Evans, Kyel Reid and Bilal Sayoud.
Kelly-Evans and Reid both featured in the Checkatrade Trophy final victory over Oxford last year, while winger Reid also came off the bench in the 3-1 win over the Grecians at Wembley on Monday.
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