NeXTStep 4.x

NeXTSTEP, from NeXT Computers headed by Steve Jobs, is a Unix based operating system designed to run on m68K NeXT workstations. It later became the basis for OS X, with APIs and concepts preserved today.

This OS offered many unique things, in addition to the unique hardware it originally ran on. It had Interface Builder, a tool to create UIs with little to no code. To make building the UIs and code easier, it had robust database support to bind data with. Objective-C was the preferred programming language, a hybrid of C and Smalltalk. Underneath was a Mach microkernel and a 4.2BSD subsystem.


Release notes

4.0 was the first release under the name "OpenStep". The name change reflects a shift from being just an OS to a portable API set.

Product type
Release date
Sat Nov 30 1996
Minimum CPU
m68k, i486, or SPARC
User interface
Download count
34 (15 for release)


Download name Version Language Architecture File size Downloads
OPENSTEP 4.1 Enterprise Openstep 4.1 Enterprise English 142.81MB 3
OPENSTEP 4.2 Enterprise Openstep 4.2 Enterprise English 352.51MB 9
Openstep 4.0 HD Image With Previous 4.0 English 74.56MB 1
Openstep 4.2 HD Image With Previous 4.2 English 75.01MB 2


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