IBM Semeru Runtime 21 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
IBM Semeru Runtime 21 is actively supported. It reaches end of life on 31 Dec 2029.
1,240 days of security support left
21.0.10+7.1 latest release
46% of this branch's supported lifetime has elapsed — 22 Sept 2023 → 31 Dec 2029.
Check your versionjava -version
Support timeline
Official dates from the IBM Semeru Runtime release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 22 Sept 2023 | — |
| End of life (scheduled) | 31 Dec 2029 | in 1,240 days |
| Latest release | 21.0.10+7.1 · 26 Feb 2026 | current |
How much runway a newer branch buys
Moving to IBM Semeru Runtime 26 extends security support by about -1,188 days.
| Branch | End of life | Days left | vs 21 |
|---|---|---|---|
| IBM Semeru Runtime 26 | 30 Sept 2026 | 52 | -1,188 days |
| IBM Semeru Runtime 25 | 30 Sept 2030 | 1,513 | +273 days |
| IBM Semeru Runtime 21 | 31 Dec 2029 | 1,240 | this branch |
| IBM Semeru Runtime 17 | 31 Oct 2027 | 448 | -792 days |
| IBM Semeru Runtime 11 | 31 Oct 2027 | 448 | -792 days |
| IBM Semeru Runtime 8 | 31 Dec 2030 | 1,605 | +365 days |
Frequently asked questions
When does IBM Semeru Runtime 21 reach end of life?
IBM Semeru Runtime 21 reaches end of life on 31 Dec 2029 — 1,240 days from now. After that date it receives no security fixes.
Is IBM Semeru Runtime 21 still supported?
Yes. IBM Semeru Runtime 21 is currently maintained. Latest release: 21.0.10+7.1, published 26 Feb 2026.
What happens when IBM Semeru Runtime 21 reaches end of life?
Security fixes stop. After 31 Dec 2029 this branch receives no further updates under standard support.
How long do I have to upgrade from IBM Semeru Runtime 21?
1,240 days. Moving to IBM Semeru Runtime 26 instead buys roughly -1,188 more days of security support.