cert-manager 1.21 End of Life
Support dates and upgrade guidance — rebuilt from live data.
Supported
cert-manager 1.21 is actively supported. The vendor has not published an end-of-support date for this branch.
1.21.1 latest release
Check your version# cmctl must be installed separately, see https://cert-manager.io/docs/reference/cmctl/.
Support timeline
Official dates from the cert-manager release process.
| Milestone | Date | Status |
|---|---|---|
| Initial release | 8 Jul 2026 | — |
| End of life (scheduled) | — | not announced |
| Latest release | 1.21.1 · 29 Jul 2026 | current |
Frequently asked questions
When does cert-manager 1.21 reach end of life?
No end-of-life date has been announced for cert-manager 1.21 yet.
Is cert-manager 1.21 still supported?
Yes. cert-manager 1.21 is currently maintained. Latest release: 1.21.1, published 29 Jul 2026.
What happens when cert-manager 1.21 reaches end of life?
Security fixes stop. After — this branch receives no further updates under standard support.
How long do I have to upgrade from cert-manager 1.21?
No end-of-life date has been announced yet.