Additional Changes

The NMinimize functionality, which was new in Version 4.2, has been moved to the kernel and expanded upon.

A number of packages had been made obsolete in Version 4, but remained as a stub package warning of the change. Those stub packages have now been removed completely.

The Cholesky and NMinimize packages described above, as well as the DiscreteMath`Permutations` package, now exist only as stubs to emit a warning that the file is obsolete.