As of Version 6.0, MLDisownRealArray() has been superseded by MLReleaseReal64Array().
As of Version 6.0, MLDisownRealList () has been superseded by MLReleaseReal64List ().
As of Version 6.0, MLDisownString() has been superseded by MLReleaseString().
As of Version 6.0, MLDisownSymbol() has been superseded by MLReleaseSymbol().
As of Version 6.0, MLDisownUnicodeString () has been superseded by MLReleaseUCS2String ().
As of Version 6.0, MLOpenArgv() has been superseded by MLOpenArgcArgv.
The use of the MLYieldParameters object is obsolete and is only maintained for backwards compatibility.
As of Version 6.0, AmbientLight has been superseded by settings for Lighting.
As of Version 6.0, ClipFill has been superseded by the more general option ClippingStyle.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(Obsolete Mathematica Symbol) Date has been superseded by DateList since Version 6.0.