base64-ng 0.10.0

base64-ng v0.10.0

Highlights

• Completed the v0.10 public API audit for the pre-v1.0 release-candidate series.
• Added release-gated API audit validation so stable releases cannot ship with unresolved review pending API rows.
• Classified core APIs, profiles, validation APIs, in-place APIs, stream adapters, error types, stack-backed buffers, SecretBuffer, and custom alphabet helpers with explicit stability or documented-boundary decisions.
• Tightened security documentation around:
  • public constant-time-oriented success/failure and length boundaries
  • volatile best-effort cleanup limits
  • const-array panic policy
  • optional downstream zeroize layering for applications that already admit that dependency
• Confirmed 0.10.0 remains scalar-only; SIMD stays behind admission evidence and release gates.

Security Posture

• Zero external runtime dependencies.
• Strict canonical decoding remains the default.
• ct APIs remain constant-time-oriented, not a formal cryptographic constant-time guarantee.
• Cleanup APIs remain best-effort retention reduction, with volatile wipe helpers documented and audited.
• Async/Tokio, serde, bytes, zeroize, subtle, active SIMD, and other integrations remain deferred unless admitted by policy.

Validation

Local release gate passed before tagging, including standard checks, nextest, Miri, cross-target checks, SBOM generation, package verification, and reproducible build checks.

Kani remains policy-skipped because the installed Kani compiler is older than the crate Rust version.