Apple Registers Mac OS X 10.8 Mountain Lion to the UNIX® 03 Standard

By Andrew Josey, The Open Group

Today, Apple, Inc. released the latest version of the Mac OS X, version 10.8, also known as “Mountain Lion.” In addition to the product’s release, we are pleased to announce that Mac OS X Mountain Lion has achieved certification to The Open Group UNIX® 03 standard, which is the mark for systems conforming to the Single UNIX Specification, Version 3.

The Single UNIX Specification is an open specification that defines the set of required interfaces for a conformant UNIX system. Support for the Single UNIX Specification permits wide portability of applications between compliant and compatible operating systems. High reliability, availability and scalability are all attributes associated with certified UNIX® systems. By registering operating systems as compliant with the Single UNIX Specification, UNIX system suppliers assure their users of the stability, application portability and interoperability of their products.

Over the years, Apple has been a great supporter of the UNIX standard, and today, Mac OS X is the most widely used UNIX desktop operating system. Apple’s installed base—over 50 million users— and commitment to the UNIX standard as a platform is significant to the UNIX certification program. We look forward to continuing to work with Apple and our other UNIX partners in promoting open and interoperable operating systems as the specification continues to evolve.

Andrew Josey is Director of Standards within The Open Group. He is currently managing the standards process for The Open Group, and has recently led the standards development projects for TOGAF 9.1, ArchiMate 2.0, IEEE Std 1003.1-2008 (POSIX), and the core specifications of the Single UNIX Specification, Version 4. Previously, he has led the development and operation of many of The Open Group certification development projects, including industry-wide certification programs for the UNIX system, the Linux Standard Base, TOGAF, and IEEE POSIX. He is a member of the IEEE, USENIX, UKUUG, and the Association of Enterprise Architects.