Single UNIX Specification - Marks For Compliant Systems

Marks For Compliant Systems

There are two official marks for conforming systems

  • UNIX 98 - the mark for systems conforming to version 2 of the SUS (partial compliance)
  • UNIX 03 - the mark for systems conforming to version 3 of the SUS (full compliance)

Older UNIX standards (superseded)

  • UNIX 93 (completely superseded)
  • UNIX 95 (compliance still acceptable for some simpler software subsystems)

Read more about this topic:  Single UNIX Specification

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