The current revision of §§ 1601-1615 considers the developments in literature and case law. The legislative goals to appropriately adjust the laws on maintenance to reflect the changed social relationships and the shift in values by strengthening the position of the child's well being and the individual responsibility of the spouse as well as the simplification of the laws on maintenance have led to new contested issues and decisions. The commentary addresses these issues in an evidence-based and practice-oriented manner.