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Roadmap

See also: MILESTONES.md in the repository for the authoritative milestone list.

This page summarizes how babar’s roadmap is organized, what is currently in scope per milestone, and what has been intentionally deferred so the surface area stays honest.

Currently babar is in pre-Alpha – I would not use it unless you want to contribute, find bugs, and improve its rust API. Work for the time being will be focused on stabilizing the developer API and identifying if there is a real desire for babar’s approach in the rust community.

What’s in now

Across the early milestones, babar has shipped:

  • Wire protocol foundation: framing, startup, parameter status, graceful shutdown, the driver task.
  • Authentication: cleartext, MD5, SCRAM-SHA-256, SCRAM-SHA-256-PLUS (channel binding over TLS).
  • The typed core: Session, Query<P, R>, Command<P>, Fragment<A>, the Encoder/Decoder traits, and codec combinators (nullable, tuples, array, range, multirange).
  • The primitive codec set and the optional codec families (reference/codecs.md).
  • Prepared statements with a per-session cache, portal-backed streaming, and prepare_command / prepare_query.
  • Closure-shaped transactions and savepoints.
  • Binary COPY FROM STDIN for bulk ingest.
  • Pool with health checks, idle timeouts, and lifetime caps.
  • A library-first migration engine with advisory locking and checksums.
  • TLS via rustls (default) or native-tls.
  • tracing spans with OpenTelemetry semantic conventions.

What’s deferred

Some features are not currently in babar either due to time or choice. Currently missing features include:

  • A streaming-notifications API based on LISTEN / NOTIFY is on the roadmap but not yet shipped. Use a polling loop or a sidecar service in the meantime
  • DSN parsing / Config::from_env() and other connection APIs for convenience will be added as needs dictate
  • ORM / query DSL is not currently planned, babar is focused on enabling writing SQL
  • Why babar — the high-level pitch.
  • Comparisons — honest trade-offs vs other Rust Postgres clients.