The Children and Families Act 2014 (CFA 2014) covers both public and private children proceedings.
In relation to private law proceedings it introduces a new subsection into s 1 of the Children Act 1989, establishing a statutory presumption of parental involvement. Contact and residence orders are replaced by Child Arrangement Orders. The requirement to attend a MIAM is now embodied in legislation (CFA 2014, s 10) as well as the rules about expert evidence in FPR Pt 25 (CFA 2014, s 13). The CFA 2014 removes the requirement for the court to consider on divorce/dissolution whether to exercise its powers under the Children Act 1989 and therefore the Statement of Arrangements (Form D8A) is scrapped.
You can access the full Act here - Children and Families Act 2014