OpenSSL 3.6 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
OpenSSL 3.6 is actively supported. It reaches end of life on 1 Nov 2026.
16 days of security support left
3.6.5 latest release
96% of this branch's supported lifetime has elapsed — 1 Oct 2025 → 1 Nov 2026.
Check your versionopenssl version
Support timeline
Official dates from the OpenSSL release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 1 Oct 2025 | 1y ago |
| Supported ends | 1 Nov 2026 | in 1mo |
| Latest release | 3.6.5 · 29 Sept 2026 | current |
How much runway a newer branch buys
Moving to OpenSSL 4.0 extends security support by about 194 days.
| Branch | End of life | Days left | vs 3.6 |
|---|---|---|---|
| OpenSSL 4.0 | 14 May 2027 | 210 | +194 days |
| OpenSSL 3.6 | 1 Nov 2026 | 16 | this branch |
| OpenSSL 3.5 | 8 Apr 2030 | 1,270 | +1,254 days |
| OpenSSL 3.4 | 22 Oct 2026 | 6 | -10 days |
Frequently asked questions
When does OpenSSL 3.6 reach end of life?
OpenSSL 3.6 reaches end of life on 1 Nov 2026 — 16 days from now. After that date it receives no security fixes.
Is OpenSSL 3.6 still supported?
Yes. OpenSSL 3.6 is currently maintained. Latest release: 3.6.5, published 29 Sept 2026.
What happens when OpenSSL 3.6 reaches end of life?
Security fixes stop. After 1 Nov 2026 this branch receives no further updates under standard support.
How long do I have to upgrade from OpenSSL 3.6?
16 days. Moving to OpenSSL 4.0 instead buys roughly 194 more days of security support.