Amazon MSK 3.5 End of Life
Support dates and upgrade guidance — rebuilt from live data.
End of Life
Amazon MSK 3.5 reached end of life on 23 Oct 2025. It no longer receives security fixes.
290 days without security patches
Recommended action: upgrade to Amazon MSK 4.2. Support timeline
Official dates from the Amazon MSK release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 26 Sept 2023 | — |
| End of life | 23 Oct 2025 | 0.8 years ago |
| Latest release | 3.5.1 · 26 Sept 2023 | final |
Where to go from 3.5
Recommended target: Amazon MSK 4.2.
The newest actively supported branch is Amazon MSK 4.2 (latest release 4.2.x).
Frequently asked questions
Is Amazon MSK 3.5 still safe to use?
Amazon MSK 3.5 reached end of life on 23 Oct 2025, 290 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Amazon MSK 3.5?
Yes — the final release (3.5.1) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Amazon MSK 3.5 to?
Upgrade to Amazon MSK 4.2, the newest actively supported branch.