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· 1 commit to claude/start-frost-project-S6Mbz since this release
v0.2.0
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Changelog

All notable changes to frost are documented here. The format follows
Keep a Changelog and this project
adheres to Semantic Versioning.

[Unreleased]

[0.2.0] — 2026-05-02

Added

  • LICENSE, CONTRIBUTING.md, CHANGELOG.md, SECURITY.md,
    CODE_OF_CONDUCT.md for OSS hygiene.
  • GitHub issue and PR templates under .github/.
  • ROADMAP.md describing the path to a viable OSS release.
  • crates.io publication metadata (description, keywords, categories,
    readme, homepage) on all three crates.
  • Minimal ObjectStore abstraction (frost-core::object_store) with
    local filesystem and S3 implementations (SigV4 via aws-sdk-s3).
  • REST catalog now fetches manifest lists and manifests through
    ObjectStore instead of silently skipping them, so small_files,
    partition_skew, delete_pressure, and orphan_files finally work on
    Polaris/Lakekeeper/Unity/Nessie.
  • frost demo subcommand for generating a sample health report against
    synthetic data.
  • cargo-dist configuration for pre-built release binaries
    (Linux x86_64/aarch64, macOS universal, Windows x86_64).
  • .github/workflows/release.yml publishes binaries to GitHub Releases
    and a container image to ghcr.io/aidancorrell/frost on tag push.
  • .github/workflows/e2e.yml spins up the sandbox REST catalog
    and runs frost check against a table with known pathologies.

Changed

  • Glue catalog's S3 downloads now use aws-sdk-s3 with the standard
    credential provider chain instead of unauthenticated HTTPS; private
    buckets work now.
  • frost check no longer silently falls back to synthetic demo data when
    a catalog load fails. It reports the error and exits non-zero. Use
    frost demo if you want the synthetic report.
  • S3 client now uses path-style addressing, so MinIO and other
    S3-compatible stores (Ceph, Wasabi, R2 with path-style) work without
    custom DNS. Real AWS S3 still works — path-style is universally
    supported there.
  • E2E workflow no longer runs on a nightly cron; kept on-demand
    (workflow_dispatch) and on-push (catalog/object-store path-scoped)
    triggers to avoid burning Actions minutes on a project with no users.

Fixed

  • REST catalog's load_table returned metadata without data files on all
    catalogs — see "Added" above.
  • Glue catalog would fail to download metadata from any private bucket.
  • frost check -f json produced unparseable output when redirected
    with >. The tracing subscriber defaulted to stdout and prepended
    ANSI-colored log lines to the JSON document. Logs now go to stderr,
    so frost check ... -f json > out.json produces a clean JSON file.

Known follow-ups (tracked in ROADMAP.md)

  • Hive Metastore catalog (Phase 7).
  • S3 Tables catalog (Phase 7).
  • MCP resources and prompts, batch endpoints, dry-run fix (Phase 8).
  • New checks: table-property drift, format-v1 tables, manifest size
    distribution, missing statistics, age-weighted orphans (Phase 9).
  • criterion benchmarks, OpenTelemetry, structured JSON logs (Phase 9).
  • mdBook docs site, hosted demo, MCP registry listing (Phase 10).

[0.1.0] — 2026-04-20

Initial prototype. Three crates, nine checks, three catalog backends
(Filesystem, REST, Glue behind a feature flag), MCP server with five
tools, CLI with six commands, SQLite-backed watch mode, 46 tests.

Assets 12
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