Istio 1.21 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Istio 1.21 reached end of life on 27 Sept 2024. It no longer receives security fixes.
Support timeline
Official dates from the Istio release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 13 Mar 2024 | — |
| End of life | 27 Sept 2024 | 1.9 years ago |
| Latest release | 1.21.6 · 23 Sept 2024 | final |
Where to go from 1.21
Recommended target: Istio 1.30 (supported until 30 Nov 2026).
The newest actively supported branch is Istio 1.30 (latest release 1.30.3).
Frequently asked questions
Is Istio 1.21 still safe to use?
Istio 1.21 reached end of life on 27 Sept 2024, 681 days ago, and is no longer covered by standard support. Running it means no guaranteed security fixes.
Can I still download Istio 1.21?
Yes — the final release (1.21.6) generally remains available from vendor archives and OS package mirrors, but installing it means running software with known, unpatched vulnerabilities.
What should I upgrade Istio 1.21 to?
Upgrade to Istio 1.30, the newest actively supported branch (supported until 30 Nov 2026).