Apple buried Copland 30 years ago. Now the failed OS boots in a browser
The final developer build offers a glimpse of the future Cupertino abandoned for NeXT
Apple's aborted operating system project, Copland, has been resurrected 30 years later thanks to a new emulator that lets users run the final developer build in their web browser. Copland aimed to evolve Apple's System 7 with a microkernel-based system featuring protected memory and preemptive multitasking. Only three unfinished developer builds, D7E1, D9, and D11E4, were publicly known, leaving most people outside Apple's developer community unable to experience it.
Researchers Michael Steil, also known as Mist, and his team created an experimental fork of the DingusPPC Power Mac emulator, which was aided by AI to generate the necessary patches. However, the emulator is still in its early stages, often crashing and requiring users to manually continue debugging. Despite its unfinished state, the emulator provides a unique glimpse into Apple's failed attempt at creating a modern Mac operating system, which later influenced the development of NeXTSTEP-based Rhapsody and eventually Mac OS X.
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