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Helm v3.21.0

Helm v3.21.0 is a feature release. Users are encouraged to upgrade for the best experience. WarningHelm v3 is approaching end-of-life. Please update to Hel

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Source: Helm ReleasesMay 25, 2026, 11:08 PMDevOpslow

Full content

Helm v3.21.0 is a feature release. Users are encouraged to upgrade for the best experience.

Warning

Helm v3 is approaching end-of-life. Please update to Helm v4.

The community keeps growing, and we'd love to see you there!

  • Join the discussion in Kubernetes Slack:
    • for questions and just to hang out
    • for discussing PRs, code, and bugs
  • Hang out at the Public Developer Call: Thursday, 9:30 Pacific via Zoom
  • Test, debug, and contribute charts: ArtifactHub/packages

Notable Changes

  • Kubernetes client libraries to v1.36
  • notable changes here

Installation and Upgrading

Download Helm v3.21.0. The common platform binaries are here:

This release was signed by @gjenkins8 with key BF88 8333 D96A 1C18 E268 2AAE D79D 67C9 EC01 6739, which can be found at https://keys.openpgp.org/vks/v1/by-fingerprint/BF888333D96A1C18E2682AAED79D67C9EC016739. Please use the attached signatures for verifying this release using gpg.

The Quickstart Guide will get you going from there. For upgrade instructions or detailed installation notes, check the install guide. You can also use a script to install on any system with bash.

What's Next

  • 3.21.1 will contain only bug fixes.
  • 3.22.0 is the next feature release for Kubernetes v1.37

Changelog

  • [v3] Bump to version v3.21 e0878d4 (George Jenkins)
  • fix: upgrade opentelemetry packages to patch CVEs 13d5fc4 (Terry Howe)
  • fix: Chart dot-name path bug 2552884 (George Jenkins)
  • fix: pin codeql-action/upload-sarif to commit SHA in scorecards workflow ec05dd5 (Terry Howe)
  • add image index test b0dfec5 (Pedro Tôrres)
  • fix pulling charts from OCI indices e629995 (Pedro Tôrres)
  • chore(deps): bump the k8s-io group with 7 updates 9c854fb (dependabot[bot])
  • chore(deps): bump golang.org/x/crypto from 0.47.0 to 0.48.0 a692247 (dependabot[bot])
  • chore(deps): bump golang.org/x/term from 0.39.0 to 0.40.0 9f2a7f6 (dependabot[bot])
  • chore(deps): bump github.com/lib/pq from 1.11.1 to 1.11.2 79f039b (dependabot[bot])
  • chore(deps): bump golang.org/x/text from 0.33.0 to 0.34.0 45210d5 (dependabot[bot])
  • Remove refactorring changes from coalesce_test.go e2df39f (Evans Mungai)
  • Fix import 97affe0 (Evans Mungai)
  • Update pkg/chart/common/util/coalesce_test.go c264166 (Evans Mungai)
  • Fix lint warning d409df8 (Evans Mungai)
  • Preserve nil values in chart already 6fdd101 (Evans Mungai)
  • fix(values): preserve nil values when chart default is empty map b13743c (Evans Mungai)
  • chore(deps): bump github.com/lib/pq from 1.10.9 to 1.11.1 703999d (dependabot[bot])
  • chore(deps): bump golang.org/x/crypto from 0.46.0 to 0.47.0 a04be96 (dependabot[bot])

New Contributors

Full Changelog: v3.20.0...v3.21.0

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