endoflife.date lists Kubernetes 1.34 as reaching end of life on 2026-10-27. After that date the 1.34 release line is no longer supported upstream. Clusters running 1.34 would need to move to a newer supported minor version.
From the source
"eolFrom": "2026-10-27"
Source: https://endoflife.date/kubernetes
Options
- Upgrade to a newer supported Kubernetes minor version (medium effort): Keeps the cluster on a release that still receives upstream patches.
- Use a managed Kubernetes provider's extended support for 1.34 (low effort): Some managed providers offer longer support windows than upstream, which buys time to upgrade.
- Kubernetes (low effort): Avoids upgrade work now, but security and bug fixes stop after end of life.
What the source does not say
- Whether managed Kubernetes providers extend support for 1.34 beyond the upstream date
- Which version is the recommended upgrade target