XNU apparently stands for "X is not Unix." Well that's confusing. | Hacker News

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		iforgot22 on Feb 13, 2025 \| parent \| context \| favorite \| on: The average CPU performance of PCs and notebooks f... XNU apparently stands for "X is not Unix." Well that's confusing.

ryao on Feb 14, 2025 [–]

It actually was a recursive acronym that stood for XNU is Not UNIX. Then at some point Apple got it UNIX certified as part of MacOS.

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