The End of an Era: HP-UX 11i v3's Final Curtain Call
The curtains are closing on HP-UX 11i v3, the last supported version of HP's Unix operating system, which first graced the scene in 1982. This marks the end of a long and storied journey, with HP-UX having evolved through various releases and architectures over the decades.
According to HPE's support matrix, the final version's end-of-life date was December 31, 2024. The product status is now described as 'Mature Software Product Support without Sustaining Engineering through at least 31-Dec-2028.'
The last release we could find is HP-UX 11i v3 release 2505.11iv3, released on May 22, 2025, for HPE's Integrity servers, which feature Intel's Itanium processors and NUMA technology. This release is significant as it represents the culmination of HP-UX's long history, including its early days on the HP 9000 Series 500 machines and its later iterations on HP's own PA-RISC architecture.
The news has sparked mixed reactions. Some mourn the passing of HP-UX, like the OSnews report, which expresses sadness over the end of support. Others see it as an opportunity, like SUSE, which offers an escape route for users by promoting SUSE Linux as a viable alternative.
HP-UX's history is rich and varied, with early versions running on the HP 9000 Series 500 machines, powered by the HP FOCUS multi-chip CISC processor. The company later transitioned to the Motorola 68000 architecture and then to its own PA-RISC RISC architecture, which was once a popular choice for workstations and servers.
However, the writing was on the wall for PA-RISC when HP announced its unification with Intel's EPIC architecture. This marked a shift towards x86-64, and the end of Itanium-based servers, which ultimately led to the demise of HP-UX. The end of HP-UX 11i v3 is a testament to the ever-changing landscape of technology, where even long-standing operating systems must eventually make way for new innovations.
As HP continues to evolve, it's important to reflect on the legacy of HP-UX and the impact it has had on the industry. The end of support for HP-UX 11i v3 is a reminder of the cyclical nature of technology, where even the most enduring systems eventually reach their final chapter.
