As of Version 6.0, MLOpenArgv() has been superseded by MLOpenArgcArgv.
The use of the MLYieldParameters object is obsolete and is only maintained for backwards compatibility.
As of Version 6.0, AmbientLight has been superseded by settings for Lighting.
As of Version 6.0, ClipFill has been superseded by the more general option ClippingStyle.
Date
(Obsolete Mathematica Symbol) Date has been superseded by DateList since Version 6.0.
As of Version 6.0, DefaultColor has been superseded by the more general option BaseStyle.
FromDate has been superseded by functionality in AbsoluteTime since Version 6.0.
As of Version 6.0, GraphicsSpacing has been superseded by the general option Spacings for GraphicsGrid and related functions.
As of Version 6.0, LightSources has been superseded by settings for Lighting.
As of Version 6.0, NotebookCreate has been superseded by CreateDocument, CreatePalette, and related functions.