Support for Helm v4

[oleksii-donoha]

Description

On Nov 12 2025 Helm team released a new major version, v4.
At this stage, there aren't many breaking end-user features, but the API has been bumped to v4 (see helm.sh/helm/v4). At some point, users will likely start migrating to v4 and will expect the provider to support it.

Potential Terraform Configuration

resource "helm_release" "loki" {
  repository = "https://grafana.github.io/helm-charts"
  chart      = "loki"
  version    = "sha256:abc123..." # supports pinning by digest now
  name        = "loki"
  namespace   = kubernetes_namespace_v1.this.metadata[0].name
  # Deprecated
  # atomic      = true 
  rollback_on_failure = true
  # Deprecated
  # force_update = true
  force_replace = true

  values = [file("${path.module}/values.yaml")] # supports multi-document YAML now
  # Removed, postrenderers are plugins now
  # postrender {...}
  ...
}

References

https://helm.sh/docs/overview
https://pkg.go.dev/helm.sh/helm/v4#section-readme

Community Note

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