How did they transition from original Mac OS to OS X? | Hacker News

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		MaysonL on May 18, 2016 \| parent \| context \| favorite \| on: Ask HN: Oldest code you have written that is still... How did they transition from original Mac OS to OS X?

coldcode on May 18, 2016 [–]

Hell if I know. I'm sure it was Carbon at the start of OS X, I'm guessing you could build some kind of compatibility layer over time.

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