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Unreleased 30-year old Mac OS for CHRP can run on your 20-year-old Mac

Archivists can now try Mac OS 7.6 and Mac OS 8 for CHRP, releases of the operating system from 30 years ago that never got released, if they have the right hardware available.

Two Kodak writable CDs labeled with Mac OS information overlay a computer window listing folders like 'Cobra Boot ROM' and 'Viper Boot ROM' on a pixelated background.
CDRs have been found with unreleased CHRP versions of Mac OS 7.6 and 8 – Image Credit: Macintosh Garden

Apple collectors often uncover hardware prototypes and other physical items from the history of the company. While there may not have been much new software-wise for holders of older Mac desktops, a few now have some new software they may be able to try out.

Three CDR discs were supplied to Macintosh Garden, containing release candidates for Mac OS 7.6 and Mac OS 8, as well as Outland 1.1B (Mac OS 8). As reported by The Register, the software was all created for CHRP.

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