IRIX® 6.5 Releases

Overview | IRIX 6.5 Releases | Definition of Terms

Overview

In May 1998, SGI released IRIX® 6.5, its operating system based on UNIX®. SGI released a new minor version, IRIX® 6.5.X on a regular basis. These releases were rigorously tested to ensure reliability and strict compatibility both up and down the release stream.

The IRIX 6.5 release stream design allows applications to run correctly on any version of IRIX 6.5, regardless of the version on which the application was developed and tested. This is a powerful mandate that allows an application to be developed under IRIX 6.5.X and be run on any IRIX 6.5.Y, regardless of whether Y > X, Y == X, or Y < X.

  • Application Compatibility in SGI IRIX 6.5
    This white paper describes the application compatibility protections offered by IRIX 6.5.
  • IRIX Release Process (PDF)
    This document describes the IRIX release process and the engineering development methodology.
  • SGI Software Support Policy
    This document gives an overview of the general software support policy guidelines and defines major and minor release, standard bugfix guidelines and the support modes.

IRIX 6.5 Releases

  • 6.5.30 - August 2006
  • 6.5.29 - February 2006
  • 6.5.28 - August 2005
  • 6.5.27 - February 2005
  • 6.5.26 - November 2004
  • 6.5.25 - August 2004
  • 6.5.24 - May 2004
  • 6.5.23 - February 2004
  • 6.5.22 - November 2003
  • 6.5.21 - August 2003
  • 6.5.20 - May 2003
  • 6.5.19 - February 2003
  • 6.5.18 - November 2002
  • 6.5.17 - August 2002
  • 6.5.16 - May 2002
  • 6.5.15 - February 2002
  • 6.5.14 - November 2001
  • 6.5.13 - August 2001
  • 6.5.12 - May 2001
  • 6.5.11 - February 2001
  • 6.5.10 - November 2000
  • 6.5.9   - August 2000
  • 6.5.8   - May 2000
  • 6.5.7   - February 2000
  • 6.5.6 - November 1999
  • 6.5.5 - August 1999
  • 6.5.4 - May 1999
  • 6.5.3 - February 1999
  • 6.5.2 - November 1998
  • 6.5.1 - August 1998

Definition of Terms

  • IRIX Feature Release
    Contains new functional subsystems (i.e.: CXFS™ and optional IRIX features as well as including all maintenance release changes. The naming convention for feature releases is to add the letter 'f' after the IRIX version number, for instance 6.5.18f.

  • IRIX Maintenance Release
    Contains bug fixes, performance enhancements including new hardware platform support and standards-based changes. Maintenance releases are identified with the letter 'm' after the IRIX version number, for instance 6.5.18m.

  • Major Release
    A major release may contain changes to Application Program Interfaces (APIs, while a minor release does not. A major release is typically identified by changing the first decimal digit of the release number (for example, previous major release: IRIX 6.4, current: IRIX 6.5.

  • Minor Release
    A minor release (also may be called a maintenance or a feature release provides error correction and/or enhance the functionality to IRIX 6.5. A minor release is identified by changing the second decimal digit of the release number (for example, IRIX 6.5.1 to IRIX 6.5.2.

  • Support Mode Status
    SGI has eight defined modes of software support, covering both operating systems and application software:

    • Active: active feature development and maintenance by SGI or a contracted vendor.
    • Courtesy: software products provided by SGI as a convenience to our customers.
    • Divested: software products turned over to a third party for further support and development.
    • Expired: no longer sold, supported, or distributed by SGI in any form.
    • Legacy: no longer actively developed or maintained; still being distributed.
    • Limited: actively developed and maintained by non-SGI entities.
    • Maintenance: being maintained but not receiving feature enhancements.
    • Retired: no longer actively developed, maintained, or distributed.