The AS/400 and iSeries are legacy hardware servers that were developed by IBM, while IBM i is the operating system that runs on modern IBM Power Systems.

The AS/400 was the original hardware platform that was introduced in 1988, and the iSeries was the successor that was released in the early 2000s.

However, despite the introduction of new hardware platforms and the evolution of the IBM i operating system, many users still refer to the technology by its original names. To clarify, the AS/400 and iSeries are older hardware platforms, while IBM i is the current operating system that runs on modern IBM Power Systems.

Announced on April 12, 2016, IBM i 7.3 will reach end of life on April 28, 2023. However, its End of support date has been extended to September 30, 2026. Starting October 1, 2023, a Service Extension Offering for IBM i 7.3 will be available, with specific details and coverage available in the Service Extension for IBM i 7.3, 7.2, and 7.1 documentation.

Initially released on April 28, 2014, and reaching end of life on September 10, 2019, IBM i 7.2’s support has been extended to April 30, 2024. A Service Extension Offering for this version commenced on May 1, 2021. Users can refer to the Service Extension for IBM i 7.3, 7.2, and 7.1 for detailed support coverage.

Launched on April 13, 2010, IBM i 7.1 saw its product lifecycle end on April 11, 2017, with official support concluding on April 30, 2018. However, an extended Service Extension began on May 1, 2021. The duration of this extension varies depending on the Power hardware generation and covers usage and known defect support, with some exceptions. For comprehensive details on this extended support, users should consult the Service Extension for IBM i 7.3, 7.2, and 7.1.

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