TutteGraph returns the Tutte graph, the first known example of a 3-connected, 3-regular, planar graph that is non-Hamiltonian.

UnrankGrayCodeSubset[n, l] gives the n\[Null]^th subset of list l, listed in Gray code order.

UnrankKSubset[m, k, l] gives the m\[Null]^th k-subset of set l, listed in lexicographic order.

UnrankSubset[n, l] gives the n\[Null]^th subset of list l, listed in some canonical order.

VertexCoverQ[g, c] yields True if the vertices in list c define a vertex cover of graph g.

The built-in function Reduce provides the functionality previously found in Algebra`InequalitySolve`.

All the functionality in DiscreteMath`Combinatorica` is available in the newly created Combinatorica Package.

Some of the functionality in Graphics`Spline` has been added to the built-in Mathematica kernel.

All the functionality of Miscellaneous`Units`is now available in the newly created Units Package.

All the functionality of NumericalMath`InterpolateRoot`is now available in the newly created Function Approximations Package.