IBM iSeries 4.3 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
IBM iSeries 4.3 reached end of life on 31 Jan 2001. It no longer receives security fixes.
9,321 days without security patches
Recommended action: upgrade to IBM iSeries 7.6. Check your versionDSPJOB OUTPUT(*PRINT)
Support timeline
Official dates from the IBM iSeries release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 11 Sept 1998 | — |
| End of life | 31 Jan 2001 | 25.5 years ago |
| Latest release | 4.3 · 11 Sept 1998 | final |
Where to go from 4.3
Recommended target: IBM iSeries 7.6.
The newest actively supported branch is IBM iSeries 7.6 (latest release 7.6.0).
Frequently asked questions
Is IBM iSeries 4.3 still safe to use?
IBM iSeries 4.3 reached end of life on 31 Jan 2001, 9,321 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download IBM iSeries 4.3?
Yes — the final release (4.3) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade IBM iSeries 4.3 to?
Upgrade to IBM iSeries 7.6, the newest actively supported branch.
All IBM iSeries versions
7.6 supported 7.5 supported 7.4 supported 7.3 EOL 2023 7.2 EOL 2021 7.1 EOL 2018 6.1 EOL 2015 5.4 EOL 2013 5.3 EOL 2009 5.2 EOL 2007 5.1 EOL 2005 4.5 EOL 2002 4.4 EOL 2001 4.3 EOL 2001 4.2 EOL 2000 4.1 EOL 2000 3.7 EOL 1999 3.6 EOL 1998 3.2 EOL 2000 3.1 EOL 1998 3.0 EOL 1997 2.3 EOL 1996 2.2 EOL 1995 2.1 EOL 1994