The Children Act 2013 replaces the 1974 Children Act in Bangladesh to align with international standards and enhance the juvenile justice system. Key provisions include the establishment of children's courts, increased roles for probation officers, and the possibility of diversion from formal proceedings for children in conflict with the law. The act emphasizes legal representation, privacy protections, and mandates specific penalties for various offenses against children, aiming for a comprehensive approach to children's rights and rehabilitation.