Mule Runtime 4.9-lts End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Mule Runtime 4.9-lts is actively supported. It reaches end of life on 29 Feb 2028.
569 days of security support left
4.9.16 latest release
48% of this branch's supported lifetime has elapsed — 28 Feb 2025 → 29 Feb 2028.
Support timeline
Official dates from the Mule Runtime release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 28 Feb 2025 | — |
| End of life (scheduled) | 29 Feb 2028 | in 569 days |
| Active support ended | 31 Aug 2027 | security fixes only after this |
| Latest release | 4.9.16 · 15 Apr 2026 | current |
How much runway a newer branch buys
Moving to Mule Runtime 4.12 extends security support by about -366 days.
| Branch | End of life | Days left | vs 4.9-lts |
|---|---|---|---|
| Mule Runtime 4.12 | 28 Feb 2027 | 203 | -366 days |
| Mule Runtime 4.11 | 31 Oct 2026 | 83 | -486 days |
| Mule Runtime 4.9-lts | 29 Feb 2028 | 569 | this branch |
| Mule Runtime 4.6-lts | 28 Feb 2027 | 203 | -366 days |
Frequently asked questions
When does Mule Runtime 4.9-lts reach end of life?
Mule Runtime 4.9-lts reaches end of life on 29 Feb 2028 — 569 days from now. After that date it receives no security fixes.
Is Mule Runtime 4.9-lts still supported?
Yes. Mule Runtime 4.9-lts is currently maintained. Latest release: 4.9.16, published 15 Apr 2026.
What happens when Mule Runtime 4.9-lts reaches end of life?
Security fixes stop. After 29 Feb 2028 this branch receives no further updates under standard support.
How long do I have to upgrade from Mule Runtime 4.9-lts?
569 days. Moving to Mule Runtime 4.12 instead buys roughly -366 more days of security support.