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cert-manager-app release v4.1.2

Oct 14, 2026 Security cert-manager-app v4.1.2

Added

cert-manager-giantswarm-clusterissuer: Allow setting cnameStrategy per DNS01 solver with acme.dns01.cloudflare.cnameStrategy, acme.dns01.route53.cnameStrategy and acme.dns01.azureDNS.cnameStrategy, so a _acme-challenge CNAME can delegate the challenge to a zone the solver can write to.

Changed

Use imagePullPolicy: IfNotPresent for the cert-manager-giantswarm-clusterissuer hook Job, so a retried Helm hook reuses the image already present on the node instead of downloading it again.
Run the E2E test suites automatically on release PRs by adding .github/release-pr-body.md.
Increase clusterIssuer job memory limit from 250Mi to 512Mi.

Fixed

Trim the helm.sh/chart label of the Giant Swarm resources (VPAs, PodLogs, proxy ConfigMap) to end on an alphanumeric character. A long dev version cut at 63 characters could end on a ., and the API server rejected the resource.