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helm-v3.21.4-windows-arm64.zip.sha256sum.asc 2026-08-14 870 Bytes
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helm-v3.21.4-linux-s390x.tar.gz.sha256.asc 2026-08-14 870 Bytes
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helm-v3.21.4-darwin-arm64.tar.gz.asc 2026-08-14 870 Bytes
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Helm v3.21.4 source code.tar.gz 2026-08-13 776.3 kB
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Helm v3.21.4 source code.zip 2026-08-13 1.5 MB
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README.md 2026-08-13 4.9 kB
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Totals: 36 Items   2.3 MB 0

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) [813176] (dependabot[bot])
  • [dev-v3 backport] deps: bump google.golang.org/grpc@v1.82.1 for GO-2026-6061 [b6aa8b] (Scott Rigby)
  • fix: bump go.opentelemetry.io/otel@v1.44.0 for GO-2026-5158 [57ce7a] (Scott Rigby)
  • fix(provenance): migrate to ProtonMail/go-crypto to resolve GO-2026-5932 [ab7144] (Karan V)
  • fix(engine): prevent Files.Lines panic on empty file [955dfa] (Mahesh Sadupalli)

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

Source: README.md, updated 2026-08-13