DataTypeDictionary has been deprecated. This annex had defined a way to provide encoding information for custom DataTypes in previous versions of this document. In OPC 10000-3 a simplified approach is now defined having a DataTypeDefinition Attribute on the DataType Node. It is required to only use the DataTypeDefinition Attribute approach. The deprecation of the DataTypeDictionary has eliminated the need for the OPC Binary Type Definition System defined in Annex C which has also been deprecated.