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macOS Removed from Official UNIX Certified Products Registry

🔄 Updated 28d ago
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Key points

  • macOS is no longer listed on the UNIX Certified Products registry.
  • UNIX certification ensures compliance with the Single UNIX Specification.
  • Certification provides a global benchmark for open operating systems.
  • Only certified systems can use the UNIX trademark.

macOS Removed from UNIX Registry

The Open Group has updated its official register of UNIX Certified Products, and macOS is no longer included. This removal signifies that macOS does not currently meet the full compliance requirements of the Single UNIX Specification, which is necessary for a system to be officially recognized as UNIX certified.

Significance of UNIX Certification

UNIX certification provides a vendor-neutral, global benchmark for identifying open operating systems. Systems that are fully compliant with the Single UNIX Specification are qualified to use the UNIX trademark. This certification ensures consistency of services and behavior across UNIX operating system implementations, improving portability and backward compatibility for applications.

Benefits for Developers and Users

For application developers, certification guarantees consistent services and behavior, leading to improved portability and faster development. For end-user enterprises, procuring certified UNIX systems ensures high levels of availability, scalability, and maintainability. It also offers freedom of choice by ensuring systems from multiple suppliers conform to a common standard, preventing vendor lock-in.

Current Certified Products

The registry continues to list other certified products, such as The SCO Group, Inc.'s UnixWare 7.1.3 and later versions. These systems conform to PC architecture and are based on IA-32 and compatible processors, meeting the stringent criteria for portability, compatibility, and global interoperability set by The Open Group.

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Reporting from

The Open Group has removed macOS from its official UNIX Certified Products registry. This change means macOS no longer officially meets the Single UNIX Specification, which could affect its standing as a vendor-neutral open operating system.