MSRV and SemVer

Minimum supported Rust version

The workspace declares Rust 1.88 (edition 2024) and every feature builds on it except postgres — and therefore full, which includes it — because sqlx 0.9 requires Rust 1.94. The CI MSRV job checks the workspace and every other feature on 1.88 and skips postgres; the other jobs run on stable, which covers it.

Versioning

Every crate of the workspace shares one version number. The workspace is at 0.1.0 and is unpublished (pre-release). Until 0.1.0 ships, the public API is not a semver guarantee: what is pub today is the surface that will be stabilised or changed before the first release.

Once released:

  • The MSRV is raised only in a minor release (per the changelog’s policy statement).
  • Semantic Versioning governs breaking changes; 0.x minor releases may still change the API.
  • unsafe_code = "forbid" in every crate; no unsafe anywhere.
  • cargo-deny (advisories, bans, licenses, sources) and cargo-audit run in CI; TLS is rustls (openssl-sys is banned).
  • The design decisions behind these choices are in ADR-0005.
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