Neos 9.1 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
Neos 9.1 is actively supported. It reaches end of life on 1 Apr 2028.
601 days of security support left
9.1.8 latest release
28% of this branch's supported lifetime has elapsed — 17 Dec 2025 → 1 Apr 2028.
Check your version./flow
Support timeline
Official dates from the Neos release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 17 Dec 2025 | — |
| End of life (scheduled) | 1 Apr 2028 | in 601 days |
| Active support ended | 1 Apr 2027 | security fixes only after this |
| Latest release | 9.1.8 · 3 Aug 2026 | current |
How much runway a newer branch buys
Neos 9.1 is the newest branch — this is the longest runway currently available.
Frequently asked questions
When does Neos 9.1 reach end of life?
Neos 9.1 reaches end of life on 1 Apr 2028 — 601 days from now. After that date it receives no security fixes.
Is Neos 9.1 still supported?
Yes. Neos 9.1 is currently maintained. Latest release: 9.1.8, published 3 Aug 2026.
What happens when Neos 9.1 reaches end of life?
Security fixes stop. After 1 Apr 2028 this branch receives no further updates under standard support.
How long do I have to upgrade from Neos 9.1?
601 days. This is already the newest branch, so this is the longest runway currently available.