Hill was a major part of Edmonton's defence this season, starting in 18 regular-season games while racking up 80 defensive tackles, three special teams tackles, four knockdowns and two forced fumbles. He also returned an interception 32 yards for a touchdown.
Ramsay played in 17 games with six starts at guard.
Boyd's release caps a tumultuous season for the veteran running back. He was released by the Toronto Argonauts in August despite being the league's top rusher at the time.
He was immediately picked up by Edmonton, but found trouble finding room in a backfield that also contained Hugh Charles and Jerome Messam and was released in October.
Boyd played six games for Edmonton, running for 148 yards and a touchdown on 27 carries.