OPNsense 18.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
OPNsense 18.1 reached end of life on 29 Jul 2018. It no longer receives security fixes.
2,933 days without security patches
Recommended action: upgrade to OPNsense 26.7. Support timeline
Official dates from the OPNsense release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 26 Jan 2018 | — |
| End of life | 29 Jul 2018 | 8.0 years ago |
| Latest release | 18.1.13 · 23 Jul 2018 | final |
Where to go from 18.1
Recommended target: OPNsense 26.7.
The newest actively supported branch is OPNsense 26.7 (latest release 26.7.1).
Frequently asked questions
Is OPNsense 18.1 still safe to use?
OPNsense 18.1 reached end of life on 29 Jul 2018, 2,933 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download OPNsense 18.1?
Yes — the final release (18.1.13) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade OPNsense 18.1 to?
Upgrade to OPNsense 26.7, the newest actively supported branch.
All OPNsense versions
26.7 supported 26.1 EOL 2026 25.7 EOL 2026 25.1 EOL 2025 24.7 EOL 2025 24.1 EOL 2024 23.7 EOL 2024 23.1 EOL 2023 22.7 EOL 2023 22.1 EOL 2022 21.7 EOL 2022 21.1 EOL 2021 20.7 EOL 2021 20.1 EOL 2020 19.7 EOL 2020 19.1 EOL 2019 18.7 EOL 2019 18.1 EOL 2018 17.7 EOL 2018 17.1 EOL 2017 16.7 EOL 2017 16.1 EOL 2016 15.7 EOL 2016 15.1 EOL 2015