New function FourierDCT has been added to the built-in Mathematica kernel. New function FourierDST has been added to the built-in Mathematica kernel.

AppendColumns, AppendRows, and BlockMatrix are available using the Mathematica kernel functions Join and ArrayFlatten. TakeRows, TakeColumns, TakeMatrix, and SubMatrix are ...

Orthogonalize, Normalize and Projection have been added to the built-in Mathematica kernel. Normalize can now take an arbitrary norm function.

Mathematica's built-in SparseArray function should be used to create tridiagonal matrices. Mathematica kernel's built-in sparse solver LinearSolve has replaced ...

Regress and DesignedRegress are now available using the built-in function LinearModelFit. The function DesignMatrix has been added to the built-in Mathematica kernel. The ...

The functionality in Miscellaneous`Audio` is now available through the newly created Audio Package.

All the functionality in Miscellaneous`BlackBodyRadiation` is now available through the newly created Black Body Radiation Package.

All the functionality in Miscellaneous`Calendar` is now available through the newly created Calendar Package.

New function ElementData has been added to the built-in Mathematica kernel.

Much of the functionality in Miscellaneous`CityData` is now available in the built-in Mathematica kernel function CityData.