In GDC Data Dictionary Release 2.6.0, the GDC added support for:
New TCGA and TARGET Properties - Several new properties and enumerated values for diagnosis, treatment, molecular tests, exposure, and pathology details for TCGA and TARGET, and other GDC supported programs
Sample Type Restructuring - The GDC is decomposing sample type into four orthogonal properties (tissue type, tumor descriptor, specimen type, preservation method) that will improve user experience in querying for sample data
New Workflow Types - Added new workflow types for copy number variation data