When the department determines that an adoption involving exchange of information would serve a child’s best interests, it may enter into agreements with the child’s proposed adoptive parent or parents for the exchange of information. The nature of the information promised to be provided shall be specified in an exchange-of-information contract and may include, but shall not be limited to, letters by the adoptive parent or parents at specified intervals providing information regarding the child’s development or photographs of the child at specified intervals. Any agreement shall provide that the biological parent or parents keep the department informed of any change in address or telephone number and may include provision for communication by the biological parent or parents indirectly through the department or directly to the adoptive parent or parents. Nothing in sections 43-155 to 43-160 shall be interpreted to preclude or allow court-ordered parenting time, visitation, or other access with the child and the biological parent or parents.