The 0.7.x source release line is supported. v0.7.0 is the current tagged source release and contains contract-majors 1, 2, and 3 plus the role-attestation and content-assertion sibling profiles; the public API surface is locked. Registry consumers use the published Hex archive. OBSERVED September 28, 2026 UTC: the Hex release API reports 0.7.0 published on September 28, 2026 (registry checksum 777c606660727781ba03b742e7a7785f2655814048fe365f415b3a0c7253e0a8). See the registry release.

The verifier returns redacted, non-authorizing facts: trust and authorization, where a result carries them, are explicitly not evaluated. The package does not select trust, hold keys, reserve replay, inspect live revocation, certify deletion or retention, remove archives, or authorize an effect — those are the responsibility of a stateful authority runtime and the consuming host.

Use GitHub's private vulnerability-reporting / security-advisory flow for baselabs/bounded_authority_protocol. Do not open a public issue containing an exploit, credential, private key, production data, or unreleased vulnerability detail.

A report should identify the affected version or commit, the violated protocol property, a minimal value-free reproduction, and the expected security outcome. We will acknowledge, triage, remediate, and coordinate disclosure through the private advisory.

For a vulnerability whose fix would change a verification verdict, see the governance policy § Security policy for the verdict-change handling rule (an accelerated, published, deployment-decided contract-major overlap — never a silent verdict change).

The supply-chain workflow runs on every push to main that changes mix.exs, mix.lock, or a package manifest (a version bump always does), weekly, and on manual dispatch from main. Each run produces the package archive, a SHA-256 checksum, release and tooling CycloneDX SBOM documents, and separate build-provenance and SBOM attestations. A downloaded archive can be verified with:

sha256sum --check SHA256SUMS
gh attestation verify bounded_authority_protocol-<version>.tar \
  --repo baselabs/bounded_authority_protocol \
  --signer-workflow baselabs/bounded_authority_protocol/.github/workflows/supply-chain.yml \
  --source-ref refs/heads/main \
  --deny-self-hosted-runners