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etcd

v3.6.11Kubernetes Core
May 2, 2026

etcd v3.6.11 is a patch release. The release notes are sparse — check the full CHANGELOG for specifics before upgrading.

  • breakingRead the upgrade guide before patching

    The release explicitly warns of potential breaking changes in the 3.6 upgrade path. Don't treat this as a routine patch drop — pull the CHANGELOG-3.6.md and the upgrade guide, diff against your current version, and validate in a non-prod cluster first.

  • enhancementVerify container registry source in your pipelines

    etcd's primary registry is gcr.io, not Docker Hub or quay.io. If your CI/CD or Kubernetes manifests still pin quay.io/coreos/etcd, you're on the secondary mirror which may lag. Update image references to gcr.io/etcd-development/etcd to stay on the canonical source.

Key changes (4)

  • No inline changelog provided; full details live in CHANGELOG-3.6.md
  • Upgrade guide should be reviewed before applying — breaking changes may exist in the 3.6 series
  • Primary container image served from gcr.io/etcd-development/etcd, with quay.io/coreos/etcd as fallback
  • Supported platform matrix updated — verify your OS/arch combo before deploying
Source ↗All etcd releases →