Changelog

[Unreleased]

[0.2.0] - 2026-04-23

Added

• Production checklist — guides/production-checklist.md for first-week production review (capture, redaction, retention, export, observability, brownfield).
• Threadline.Query.timeline_repo!/2 — resolves :repo from filters or opts with clear ArgumentError messages for timeline and export callers.
• ExDoc — guides/production-checklist.md in extras; Threadline.Retention and Threadline.Retention.Policy listed under Core API module groups.

Changed

• Timeline filter errors — validate_timeline_filters!/1 messages now point at allowed keys and Threadline.Export.
• Validation order — timeline/2 and export entrypoints validate filter keys before resolving :repo, so unknown keys surface before a missing-repo error.

Release notes (capabilities since 0.1.0)

This minor release documents and packages capabilities shipped across the v1.1–v1.3 planning cycles that were not fully reflected in the 0.1.0 changelog entry:

• Before-values — optional changed_from on UPDATE when triggers are generated with --store-changed-from; Threadline.history/3 loads the column when present.
• Verify coverage & doc contracts — mix threadline.verify_coverage, CI verify.threadline / verify.doc_contract, README fixture contracts.
• Brownfield continuity — Threadline.Continuity, mix threadline.continuity, guides/brownfield-continuity.md.
• Redaction at capture — config :threadline, :trigger_capture, per-table exclude / mask, codegen validation.
• Retention — Threadline.Retention.Policy, Threadline.Retention.purge/1, mix threadline.retention.purge.
• Export — Threadline.Export, Threadline.export_csv/2, Threadline.export_json/2, mix threadline.export, shared timeline filter validation.

[0.1.0] - 2026-04-23

Added

• Threadline core API plus Threadline.Semantics.ActorRef and Threadline.Semantics.AuditContext for attributing writes to actors in audit context.
• Threadline.Plug for resolving ActorRef from Plug.Conn, plus integration modules Threadline.Job, Threadline.Health, and Threadline.Telemetry.
• Threadline.Semantics.AuditAction and Threadline.Capture schemas (AuditTransaction, AuditChange) for PostgreSQL trigger-backed row-change capture.
• Mix tasks Mix.Tasks.Threadline.Install and Mix.Tasks.Threadline.Gen.Triggers to generate migrations and table-specific audit triggers.