Albion have axed three more members of the squad which missed out by a place on the League One play-offs.
Young leftback Sam Rents, Irish midfielder Shane McFaul and French midfielder David Martot have all been told they are not being offered contracts for next season.
Youth team product Rents has played third fiddle this season to Matt Richards, on loan from Ipswich, and Kerry Mayo.
McFaul's first team opportunities have been limited since he was signed on a short-term contract from University College Dublin during the January transfer window.
Martot, on loan from Le Havre, is now expected to return to France and sign for Metz.
Mayo plus fellow stalwarts Gary Hart and Guy Butters have also been released, along with versatile Australian Paul Reid.
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