rtpengine 11.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
rtpengine 11.5 is actively supported. It reaches end of life on 11 Sept 2026.
33 days of security support left
11.5.1.53 latest release
97% of this branch's supported lifetime has elapsed — 22 Sept 2023 → 11 Sept 2026.
Check your versionrtpengine -v
Support timeline
Official dates from the rtpengine release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 22 Sept 2023 | — |
| End of life (scheduled) | 11 Sept 2026 | in 33 days |
| Latest release | 11.5.1.53 · 29 Jun 2026 | current |
How much runway a newer branch buys
Moving to rtpengine 26.1 extends security support by about -11 days.
| Branch | End of life | Days left | vs 11.5 |
|---|---|---|---|
| rtpengine 26.1 | 31 Aug 2026 | 22 | -11 days |
| rtpengine 26.0 | 1 May 2029 | 996 | +963 days |
| rtpengine 13.5 | 28 Sept 2028 | 781 | +748 days |
| rtpengine 12.5 | 24 Sept 2027 | 411 | +378 days |
| rtpengine 11.5 | 11 Sept 2026 | 33 | this branch |
Frequently asked questions
When does rtpengine 11.5 reach end of life?
rtpengine 11.5 reaches end of life on 11 Sept 2026 — 33 days from now. After that date it receives no security fixes.
Is rtpengine 11.5 still supported?
Yes. rtpengine 11.5 is currently maintained. Latest release: 11.5.1.53, published 29 Jun 2026.
What happens when rtpengine 11.5 reaches end of life?
Security fixes stop. After 11 Sept 2026 this branch receives no further updates under standard support.
How long do I have to upgrade from rtpengine 11.5?
33 days. Moving to rtpengine 26.1 instead buys roughly -11 more days of security support.
All rtpengine versions
26.1 supported 26.0 supported 14.1 EOL 2026 14.0 EOL 2026 13.5 supported 13.4 EOL 2025 13.3 EOL 2025 13.2 EOL 2025 13.1 EOL 2025 13.0 EOL 2024 12.5 supported 12.4 EOL 2024 12.3 EOL 2024 12.2 EOL 2024 12.1 EOL 2024 12.0 EOL 2023 11.5 supported 11.4 EOL 2023 11.3 EOL 2023 11.2 EOL 2023 11.1 EOL 2023 11.0 EOL 2022 10.5 EOL 2025 9.5 EOL 2024 8.5 EOL 2023