The Millers finished mid-table in Division One this season, and boss Ronnie Moore (pictured) is looking to build on this for the coming campaign.
The club have taken the decision to release several squad members to cut their wage bill and to bring in new faces.
Reserve goalkeeper Ian Gray, David Artell, Danny Hudson and Marvin Bryan have all been told they are free to find other clubs in the summer.
Meanwhile, Millers boss Ronnie Moore may be preparing for next season by making a reported bid for Wolves out-of-favour defender Mohamed Camara.
