1. Name change. The term mental retardation was used in DSM-IV and in earlier DSM definitions. Mental Retardation is no longer used internationally or in U.S. federal legislation, so a name change is required in DSM-5. The term Intellectual Disability (ID) is widely used. This term is used by the AAIDD and criteria have been developed to define ID as a functional disorder, explicitly in keeping with the WHO International Classification of Functioning (ICF).
Which leads me to question why an authoritative paper like The New York Times would drag its feet?