How does Renovate handle Helm chart updates?

Renovate supports Helm via two managers: helmv3 (Chart.yaml dependencies) and helm-values (image tags in values.yaml).

# Chart.yaml — Renovate updates chart dependency versions
dependencies:
  - name: postgresql
    version: "13.2.0"
    repository: "https://charts.bitnami.com/bitnami"

# values.yaml — Renovate updates image tags
image:
  repository: myorg/myapp
  tag: "1.2.3"

{
  "helmv3": { "fileMatch": ["(^|/)Chart\.yaml$"] },
  "helm-values": { "fileMatch": ["(^|/)values.*\.ya?ml$"] },
  "packageRules": [
    {
      "matchManagers": ["helmv3"],
      "matchPackageNames": ["postgresql"],
      "allowedVersions": ">=13.0.0 <14.0.0",
      "groupName": "Helm database charts"
    }
  ]
}

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