Helm

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v3.21.4 · today
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Helm v3.21.4 is a patch release. Users are encouraged to upgrade for the best experience.

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

  • fix(engine): prevent Files.Lines panic on empty file (backport to v3)- #32303 by @mahesh-sadupalli
  • fix(provenance): migrate to ProtonMail/go-crypto to resolve GO-2026-5932- #32463 by @karan-vk
  • [dev-v3 backport] fix: bump go.opentelemetry.io/otel@v1.44.0 for GO-2026-5158- #32535 by @scottrigby
  • [dev-v3 backport] deps: bump google.golang.org/grpc@v1.82.1 for GO-2026-6061- #32536 by @scottrigby
  • chore(deps): bump golang.org/x/crypto from 0.53.0 to 0.54.0- (includes golang.org/x/text v0.40.0 to fix GO-2026-5970) #32308

Installation and Upgrading

Download Helm v3.21.4. The common platform binaries are here:

This release was signed with 208D D36E D5BB 3745 A167 43A4 C7C6 FBB5 B91C 1155 and can be found at @scottrigby keybase account. 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

  • 4.3.0 and 3.22.0 are the next minor releases scheduled for September 9, 2026

Changelog

  • chore(deps): bump golang.org/x/crypto from 0.53.0 to 0.54.0 (#32308) 813176c51bb5c181dbbd7901298ddcc104cd3417 (dependabot[bot])
  • [dev-v3 backport] deps: bump google.golang.org/grpc@v1.82.1 for GO-2026-6061 b6aa8b1d71140347f75ef0b77fac91f28ffe10b3 (Scott Rigby)
  • fix: bump go.opentelemetry.io/otel@v1.44.0 for GO-2026-5158 57ce7aeec1eb82422c5c349dfadda20ea3f743fe (Scott Rigby)
  • fix(provenance): migrate to ProtonMail/go-crypto to resolve GO-2026-5932 ab71449c76f66e55064ae4503a6e7adae21dcfa9 (Karan V)
  • fix(engine): prevent Files.Lines panic on empty file 955dfab1e6bdd70b5ccd7b932b2d500e9e26566c (Mahesh Sadupalli)

Full Changelog: https://github.com/helm/helm/compare/v3.21.3...v3.21.4