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breaking: the dependency sigstore/cosign has been updated to a new major version (v3.1.1), which may include breaking changes. #major#978

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breaking: the dependency sigstore/cosign has been updated to a new major version (v3.1.1), which may include breaking changes. #major#978
public-glueops-renovatebot[bot] wants to merge 1 commit into
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renovate-automerge/sigstore-cosign-3.x

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@public-glueops-renovatebot public-glueops-renovatebot Bot commented Jul 22, 2026

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This PR contains the following updates:

Package Type Update Change Pending
sigstore/cosign uses-with major v2.6.3v3.1.1 v3.1.2

Release Notes

sigstore/cosign (sigstore/cosign)

v3.1.1

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What's Changed

Note: v3.1.0 was skipped due to a bug in our release pipeline. v3.1.1 is identical to v3.1.0

This release deprecates a number of flags related to verification material input for trust root material, as well as the bundle format, standardized across Sigstore SDKs, which is now the default output and input for signing and verifying respectively. You may continue to use the deprecated flags with Cosign v3.x releases. The deprecated flags will be removed in a future Cosign v4 release.

This release also updates the signing path for logging to Rekor v2. DSSE attestations will be logged as hashed entries, using the DSSE's pre-auth encoding (PAE). This should unblock developers who want to upload large signed DSSEs such as SBOMs.

  • Initialize PKCS11 slots Before Getting Token Info in #​4803
  • Sign exclusively via sigstore-go in #​4618
  • bundle create: Prevent IgnoreTlog when bundle contains SET in #​4829
  • Require bundle output or registry upload in #​4785
  • fix(load): pass NameOptions to name.ParseReference in #​4786
  • fix: honor --digestAlg when hashing a blob in verify-blob-attestation in #​4813
  • Deprecate Flags for v4: Certificates in #​4822
  • Deprecate flags signing config in #​4844
  • Deprecate flags bundle in #​4838
  • Fix typo in map of verify command fields unsupported for new bundle format in #​4853
  • Add bundle upgrade command in #​4820
  • Deprecate Flags for v4 in #​4854
  • fix: close file descriptor leaked in WriteSignedImageIndexImages loop in #​4869
  • fix: use Header.Set to prevent duplicate Authorization on retry in #​4870
  • feat(cli): add Rekor v2 flag to cosign signing-config create in #​4868
  • Fix crash verifying timestamps when no timestamp was verified in #​4881
  • Deprecate Flags for v4: OCI Referrers in #​4804
  • Use the configured Target Repository more consistently in #​4836
  • fix: check HTTP status code in LoadFileOrURL in #​4877
  • Fix unsafe type assertion in Rego policy evaluation by in #​4882
  • Fix Ed25519ph check to respect custom signing configs in sign-blob in #​4880
  • Enable initialize command output in conformance in #​4892
  • verify: return TUF errors for new bundle trusted roots in #​4878
  • Deprecate subcommands in #​4894
  • Remove docstring references to deprecated flags in #​4910
  • fix(verify): Attach detached certificates to static signatures via wrapped verifier in #​4737
  • fix(verify): copy CheckOpts inside VerifyNewBundle to fix data race in #​4917
  • Update sigstore-go to v1.2.0 in #​4914

Full Changelog: sigstore/cosign@v3.0.6...v3.1.1

v3.0.6

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Changelog

v3.0.6 resolves GHSA-w6c6-c85g-mmv6. This release also adds support for signing with OpenBao-managed keys.

Thanks to all contributors!

v3.0.5

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Deprecations

Features

  • Automatically require signed timestamp with Rekor v2 entries (#​4666)
  • Allow --local-image with --new-bundle-format for v2 and v3 signatures (#​4626)
  • Add mTLS support for TSA client connections when signing with a signing config (#​4620)
  • Enforce TSA requirement for Rekor v2, Fuclio signing (#​4683)

Bug Fixes

  • Add empty predicate to cosign sign when payload type is application/vnd.in-toto+json (#​4635)
  • fix: avoid panic on malformed attestation payload (#​4651)
  • fix: avoid panic on malformed tlog entries (#​4649)
  • fix: avoid panic on malformed replace payload (#​4653)
  • Gracefully fail if bundle payload body is not a string (#​4648)
  • Verify validity of chain rather than just certificate (#​4663)
  • fix: avoid panic on malformed tlog entry body (#​4652)

Documentation

  • docs(cosign): clarify RFC3161 revocation semantics (#​4642)
  • Fix typo in CLI help (#​4701)

v3.0.4

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v3.0.4 resolves GHSA-whqx-f9j3-ch6m.

Changes

  • Fix bundle verify path for old bundle/trusted root (GHSA-whqx-f9j3-ch6m) (#​4623)
  • Optimize cosign tree performance by caching digest resolution (#​4612)
  • Don't require a trusted root to verify offline with a key (#​4613)
  • Support default services for trusted-root and signing-config creation (#​4592)

v3.0.3

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Thank you for all of your feedback on Cosign v3! v3.0.3 fixes a number of bugs reported by
the community along with adding compatibility for the new bundle format and attestation
storage in OCI to additional commands. We're continuing to work on compatibility with
the remaining commands and will have a new release shortly. If you run into any problems,
please file an issue

Changes

  • 4554: Closes 4554 - Add warning when --output* is used (#​4556)
  • Protobuf bundle support for subcommand clean (#​4539)
  • Add staging flag to initialize with staging TUF metadata
  • Updating sign-blob to also support signing with a certificate (#​4547)
  • Protobuf bundle support for subcommands save and load (#​4538)
  • Fix cert attachment for new bundle with signing config
  • Fix OCI verification with local cert - old bundle
  • Deprecate tlog-upload flag (#​4458)
  • fix: Use signal context for sign cli package.
  • update offline verification directions (#​4526)
  • Fix signing/verifying annotations for new bundle
  • Add support to download and attach for protobuf bundles (#​4477)
  • Add --signing-algorithm flag (#​3497)
  • Refactor signcommon bundle helpers
  • Add --bundle and fix --upload for new bundle
  • Pass insecure registry flags through to referrers
  • Add protobuf bundle support for tree subcommand (#​4491)
  • Remove stale embed import (#​4492)
  • Support multiple container identities
  • Fix segfault when no attestations are found (#​4472)
  • Use overridden repository for new bundle format (#​4473)
  • Remove --out flag from cosign initialize (#​4462)
  • Deprecate offline flag (#​4457)
  • Deduplicate code in sign/attest* and verify* commands (#​4449)
  • Cache signing config when calling initialize (#​4456)

v3.0.2

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v3.0.2 is a functionally equivalent release to v3.0.0 and v3.0.1, with a fix for CI to publish signed releases in the new bundle format.

  • Note that the --bundle flag specifying an output file to write the Sigstore bundle (which contains all relevant verification material) has moved from optional to required in v3.

Changes

  • choose different signature filename for KMS-signed release signatures (#​4448)
  • Update rekor-tiles version path (#​4450)

v3.0.1

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v3.0.1 is an equivalent release to v3.0.0, which was never published due to a failure in our CI workflows.

  • Note that the --bundle flag specifying an output file to write the Sigstore bundle (which contains all relevant verification material) has moved from optional to required in v3.

Changes

  • update goreleaser config for v3.0.0 release (#​4446)

v2.6.4

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This release is a backport of OCI manifest fixes, and better support for cosign attestation download when you are using a mix of old Cosign signatures with the more recent bundle format.

We strongly encourage folks to continue their migration to the bundle format. The Cosign v3.1.x releases support both formats; the primary change being that the default for signing is the bundle format (although you can specify --new-bundle-format=false to sign with the old format). The verification commands in Cosign v3.1.x support both formats, and will try to detect the format for you for maximum compatibility.

Changelog

  • 26261f0 Allow attestation download to handle both bundle types (#​4996) (#​5017)
  • d49a0c1 fix: include artifactType in OCI 1.1 signature referrer manifest (cherry-pick PR-4997 to release-2.6) (#​5002)
Thanks to all contributors!

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This PR has been generated by Mend Renovate.

@public-glueops-renovatebot
public-glueops-renovatebot Bot force-pushed the renovate-automerge/sigstore-cosign-3.x branch 4 times, most recently from 4ebdb56 to d682a8c Compare July 22, 2026 12:19
…major version (v3.1.1), which may include breaking changes. #major
@public-glueops-renovatebot
public-glueops-renovatebot Bot force-pushed the renovate-automerge/sigstore-cosign-3.x branch from d682a8c to f1354c9 Compare July 22, 2026 19:15
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