Changelog

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All notable changes to Aurora Meter are documented here. The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.1.0] - 2026-07-11

Initial release of the free core.

Added

  • Metering — AuroraMeter.track/4, usage/2, usage_all/1. ETS-backed atomic counters (:ets.update_counter), never touching the database on the hot path; ~8M increments/sec aggregate. Interval Flusher persists absolute-value snapshots (idempotent); interval Broadcaster fans live values over PubSub. Per-feature :durable mode also writes a raw event row.
  • Entitlements — check/2, allowed?/2, entitled?/2, remaining/2, reserve/2,3, and with_quota/3,4 (atomic reserve + release-on-raise; correct hard-limit enforcement under concurrency). Hard limits block; metered features allow overage; undeclared features are permissive.
  • Plans — a compile-time DSL (use AuroraMeter.Plans) with plan, price, limit, metered, and feature, validated at compile time.
  • Subscriptions — local subscribe/2 and plan/1, with a configurable default plan.
  • Billing seam — AuroraMeter.Billing.Provider behaviour + Noop default + a Billing facade, so the core works standalone and Pro plugs in.
  • LiveView — usage_meter/1 and usage_summary/1 components (behind the optional LiveView deps) and AuroraMeter.LiveView.subscribe/1.
  • Storage — AuroraMeter.Storage behaviour + Ecto/Postgres adapter; AuroraMeter.Migration and mix aurora_meter.gen.migration / install.
  • Config — NimbleOptions-validated configuration (fail fast at boot).

  • Telemetry — [:aurora_meter, :track | :flush | :broadcast].

  • Bench — mix aurora_meter.bench.