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chore(deps): bump sigstore/cosign-installer from 3.9.1 to 4.1.2 - #625

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chore(deps): bump sigstore/cosign-installer from 3.9.1 to 4.1.2#625
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@dependabot dependabot Bot commented on behalf of github Sep 1, 2026

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Bumps sigstore/cosign-installer from 3.9.1 to 4.1.2.

Release notes

Sourced from sigstore/cosign-installer's releases.

v4.1.2

What's Changed

v4.1.1

What's Changed

Full Changelog: sigstore/cosign-installer@v4.1.0...v4.1.1

v4.1.0

What's Changed

We recommend updating as soon as possible as this includes bug fixes for Cosign. We also recommend removing with: cosign-release and strongly discourage using cosign-release unless you have a specific reason to use an older version of Cosign.

Full Changelog: sigstore/cosign-installer@v4.0.0...v4.1.0

v4.0.0

What's Changed?

Note: You must upgrade to cosign-installer v4 if you want to install Cosign v3+. You may still install Cosign v2.x with cosign-installer v4.

In version v3+, using cosign sign-blob requires adding the --bundle flag which may require you to update your signing command.

  • Add support for Cosign v3 releases (#201)

v3.10.1

What's Changed?

Note: cosign-installer v3.x cannot be used to install Cosign v3.x. You must upgrade to cosign-installer v4 in order to use Cosign v3.

Note: This is planned to be the final release of Cosign v2, though we will cut new releases for any critical security or bug fixes. We recommend transitioning to Cosign v3.

  • Bump default Cosign to v2.6.1 (#203)

v3.10.0

What's Changed

Full Changelog: sigstore/cosign-installer@v3.9.2...v3.10.0

v3.9.2

What's Changed

... (truncated)

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Bumps [sigstore/cosign-installer](https://github.com/sigstore/cosign-installer) from 3.9.1 to 4.1.2.
- [Release notes](https://github.com/sigstore/cosign-installer/releases)
- [Commits](sigstore/cosign-installer@398d4b0...6f9f177)

---
updated-dependencies:
- dependency-name: sigstore/cosign-installer
  dependency-version: 4.1.2
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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dependabot Bot commented on behalf of github Sep 1, 2026

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@dependabot dependabot Bot added the work-type:tech-debt Refactor / cleanup, no behavior change label Sep 1, 2026
@aptracebloc
aptracebloc requested a review from saadqbal September 1, 2026 17:24

@saadqbal saadqbal left a comment

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Verified the pin: 6f9f177 is what v4.1.2 resolves to (lightweight tag, no deref needed). Diffed action.yml across the two SHAs — inputs are identical, still a composite action, still appends install-dir to GITHUB_PATH. The only real change is the cosign-release default going v2.5.2v3.0.6, and our one call site pins v2.4.1 at release.yml:111, which v4 still installs via its pre-v3 detached-.sig leg. So signing keeps emitting .cert/.sig and install.sh (also pinned to v2.4.1) keeps verifying them — no --bundle migration needed and nothing changes for end users.

Worth being explicit that the green checks don't actually exercise this: release.yml only triggers on push: tags: ['v*.*.*'] or dispatch, so the bumped action first runs at the next release cut. Contained though — the action exit 1s if it can't validate the version and cosign-retry.sh fails closed on "exited 0 but produced no artifact", so a surprise breaks the release loudly rather than publishing unsigned binaries.

For later, not this PR: v4.1.0's notes recommend dropping with: cosign-release. We shouldn't take that on its own — cosign 3.x needs --bundle on sign-blob, and the v2.4.1 pin is hand-maintained in three places (release.yml, scripts/install.sh, scripts/install.ps1) with no check asserting they agree. Coordinated change when we want it.

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work-type:tech-debt Refactor / cleanup, no behavior change

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