Crystal Palace striker Calvin Andrew has been offered a new contract to stay at Selhurst Park next season.
The Eagles have also given extensions to Kieron Cadogan and Kieran Djilali.
But James Comley, Matthew Wright, Hakeem Adelakun and Michael Abnett have been released.
Meanwhile, veteran defender Matt Lawrence wants to be playing Championship football next season - even if it is not with Palace.
The 35-year-old centre-half was a key performer towards the end of the campaign as the Eagles narrowly avoided relegation.
But he will soon be out of contract and the uncertainty over the club's future means he may have to move on.
"I want to stay in the Championship if I can and I'll go anywhere to do that," Lawrence told the South London Press.
"I went through a bad time this season when the gaffer didn't play me for three or four months - and I started doubting myself - but I got back to playing well in the last few months.
"It made me realise it is a level of football I can sustain for at least one or even two more years.
"The minute you start dropping down a league you adapt to it and there is no way of coming back up."