Mandrel 21.3 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Mandrel 21.3 reached end of life on 17 Jul 2023. It no longer receives security fixes.
1,119 days without security patches
Recommended action: upgrade to Mandrel 25.0. Support timeline
Official dates from the Mandrel release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 20 Oct 2021 | — |
| End of life | 17 Jul 2023 | 3.1 years ago |
| Latest release | 21.3.6.0 · 21 Apr 2023 | final |
Where to go from 21.3
Recommended target: Mandrel 25.0.
The newest actively supported branch is Mandrel 25.0 (latest release 25.0.4.0).
Frequently asked questions
Is Mandrel 21.3 still safe to use?
Mandrel 21.3 reached end of life on 17 Jul 2023, 1,119 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Mandrel 21.3?
Yes — the final release (21.3.6.0) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Mandrel 21.3 to?
Upgrade to Mandrel 25.0, the newest actively supported branch.