Autodesk Inc is now shipping its AutoCAD Release 10 for OS/2 Presentation Manager, the first version to support Autodesk’s new AutoCAD Development System, a library of C language subroutines that can be used to create programs that link with AutoCAD or that link AutoCAD to other applications: it needs 4Mb and 80287 maths chip minimum and is $3,000; those with Release 10 under other operating systems can switch over to the OS/2 version for $250.