Unverified50% confidenceFactExact time
The POSIX standard is developed by IEEE and defines a set of APIs, command-line tools and runtime behaviors that an operating system must provide, with the goal of making source code portable across different systems.
1
Sources
50%
Confidence
Long-term
Relevance
10/22/2026
First Seen
Sources
macOS Is No Longer UNIX: Apple Didn't Renew Certification, But the Technology Is Unchanged
youtubeThe Lunduke Journal10/22/2026
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