Apple/macOS removed from official Unix registry
- ID
- 34146
- Status
- summarized
- Published
- 10 Oct 2026, 6:57 PM
- Fetched
- 11 Oct 2026, 12:09 PM
- Provider
- Hacker News
- Category
- dev-community
- Original URL
- https://www.opengroup.org//openbrand/register/
- Source URL
- https://hnrss.org/best
Summary
- Score
- 3.0
- Created
- 11 Oct 2026, 12:09 PM
- Tags
- Audience
- developerssaas_founders
What happened
The Open Group's official register of UNIX Certified Products currently lists entries only from IBM (z/OS 3.1, AIX 7.1/7.2, AIX 5L, AIX 6.1.2) and Hewlett Packard Enterprise (HP-UX 11i V3 B.11.31) — Apple/macOS no longer appears, per the submission title. The linked page is just the certification register; it carries no explanation, no date of removal, and no statement from Apple. The Hacker News thread drew 267 points and 222 comments.
Why it matters
Nothing in a typical build breaks: the register governs who may use the UNIX® trademark, not POSIX behaviour, not Darwin's BSD userland, and not whether your macOS laptop compiles your code. The concrete impact is procurement language — if an enterprise vendor questionnaire, government tender, or compliance checklist requires a 'certified UNIX' system, macOS can no longer be cited as satisfying that line item, so anyone selling Mac-based tooling into that channel may need to point at a different certification or drop the claim. The text provides no reason for the change, so don't repeat one.
Discussion angle
Ask who in the room has actually seen 'certified UNIX' appear in a real tender, RFP, or vendor security questionnaire — if the answer is nobody, the 222-comment thread is nostalgia rather than a signal; if somebody has, the removal is a small but real change to the compliance checklist they maintain.