Additional kernel directory and file manipulation functions.
Support for multi-platform external program clusters.
Optimized MathLink external program interface.
Loopback links for storing expressions in external programs.
Direct support for arrays in external programs.
Shared libraries for MathLink.
Uniform layout of system files across all platforms.
Automatic initialization of kernel and front end functionality as well as documentation for add-ons.
Support for multi-lingual versions and all standard keyboard character encodings.
TCP-based network license server.
OLE support under Microsoft Windows.