base64-ng 1.0.9

base64-ng v1.0.9

Highlights

• Added optional companion crates:
  • base64-ng-sanitization
  • base64-ng-derive
  • base64-ng-serde
  • base64-ng-bytes
  • base64-ng-tokio

Security and Hardening

• Added secret-oriented sanitization helpers for constant-time decode workflows.
• Added derive support for fixed-size Base64 secret newtypes.
• Added clearer documentation around strict decoder diagnostics and secret-bearing input.
• Hardened decode error index offset handling with saturating arithmetic.
• Documented serde timing behavior and recommended CT decoding for secret fields.
• Clarified stream decoder behavior when decoded bytes have already been written to an external sink.

Ecosystem Integration

• Added serde wrappers and #[serde(with = "...")] helper modules.
• Added bytes integration for Bytes, Buf, and BufMut.
• Added Tokio async helper crate with bounded encode/decode utilities.
• Added workspace release tooling for publishing core and companion crates in dependency order.

Validation

• Full release gate passed.
• Companion crate tests, docs, clippy, dependency policy, audit, and license checks passed.
• GitHub CI was green before tagging.