This article reviews key developments in the past decade of research on divorce, repartnering, and stepfamilies. Divorce rates are declining overall, but they remain high and have risen among people older than age 50. Remarriage rates have declined, but the overall proportion of marriages that are remarriages is rising. Transitions in parents' relationships continue to be associated with reduced child well‐being, but shifting patterns of divorce and repartnering during the past decade have also reshaped the family lives of older adults. We review research on the predictors and consequences of these trends and consider what they reveal about the changing significance of marriage as an institution. Overall, recent research on divorce, repartnering, and stepfamilies points to the persistence of marriage as a stratified and stratifying institution and indicates that the demographic complexity of family life is here to stay.