The Aparecida bishops have been consistent through this documents as well as the three conferences that preceded:
396. We commit ourselves to work so that our Latin American and Caribbean Church will continue to be, with even greater determination, a traveling companion of our poorest brothers and sisters, even as far as martyrdom. Today we want to ratify and energize the preferential option for the poor made in previous Conferences.(Medellin 14, 4-11; Puebla 1134-1165; Santo Domingo 178-181) That it is preferential means that it should permeate all our pastoral structures and priorities. The Latin American Church is called to be sacrament of love, solidarity, and justice within our peoples.
For deeper examination, an English translation of the 2007 document from the Aparecida Conference.
Catholic Sensibility 