Brentford have confirmed that strikers Tommy Smith and Nick Proschwitz have been released by the club.
Smith, 38, has not been offered a new deal by the Championship side.
Meanwhile, the club has not taken up the option to extend 28-year-old Proschwitz's contract.
Smith scored one goal in 32 appearances for the Bees, while Proschwitz found the net three times in 29 games.