Debian end of life: end of support by version
Debian-Projekt · Operating Systems
For Debian by Debian-Projekt, patchletter knows 12 support cycles. 11 of them have already ended and receive no more security updates. The next support window closes on 09/08/2028, that is in 713 days. The current version of Debian is 13.6. The cycles come from the open endoflife.date project, last reconciled on 26/08/2026.
When does support end for which Debian version?
A cycle is a maintained version line. Where a date is given, support ends on that day — after it the vendor ships no more security updates for that line.
| Cycle | Latest version | End of support | Status |
|---|---|---|---|
| 13 | 13.6 | 713 days left | EOL 9 Aug 28 |
| 12 | 12.15 | 47 days ago | End of Life |
| 11 | 11.11 | 743 days ago | End of Life |
| 10 | 10.13 | 1447 days ago | End of Life |
| 9 | 9.13 | 2231 days ago | End of Life |
| 8 | 8.11 | 2993 days ago | End of Life |
| 7 | 7.11 | 3776 days ago | End of Life |
| 6 | 6.0.10 | 4471 days ago | End of Life |
| 5 | 5.0.10 | 5316 days ago | End of Life |
| 4 | 4.0r9 | 6037 days ago | End of Life |
| 3.1 | 3.1r8 | 6723 days ago | End of Life |
| 3.0 | 3.0r6 | 7363 days ago | End of Life |
Which Debian versions no longer receive security updates?
11 of 12 cycles have ended. If you run one of those lines, the vendor ships you no more patches — not even for critical flaws.
- Debian 1212.15
- Debian 1111.11
- Debian 1010.13
- Debian 99.13
- Debian 88.11
- Debian 77.11
- Debian 66.0.10
- Debian 55.0.10
- Debian 44.0r9
- Debian 3.13.1r8
- Debian 3.03.0r6
Where does the EOL data for Debian come from?
From the open endoflife.date project, which collects vendors' official support commitments. patchletter reconciles the cycles daily; the Debian data is as of 26/08/2026. In case of doubt the vendor's own lifecycle page applies — patchletter deliberately stores no vendor full texts.
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