IRIX 6.5 Releases

In May 1998, SGI released IRIX® 6.5, its operating system based on UNIX®. SGI releases a new minor version, IRIX® 6.5.X on a regular basis. These releases are 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.
For those asking about recertification of applications, please take a moment and become acquainted with the application compatibility protections offered by IRIX 6.5. 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 6.5This white paper describes the application compatibility protections offered by IRIX 6.5.
IRIX Release Process (PDF 53K)This document describes the IRIX release process and the engineering development methodology.
SGI Software Support PolicyThis document gives an overview of the general software support policy guidelines and defines major and minor release, standard bugfix guidelines and the support modes.