Changelog

All notable changes to this project are documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning. The normalized vocabularies are the public contract: adding a member is a minor bump, renaming or removing one is a major bump (see ADR 0009).

Unreleased

0.1.0 - 2026-06-05

First release: the Phase 1 core and Phase 1.5 blocking layer, tested on the JVM, Node, and the browser.

Added

• Portable core API (nats-cljc.core) — one .cljc surface that runs unchanged on the JVM, the browser, and Node: connect, publish, subscribe, request/reply, unsubscribe (with auto-unsubscribe), flush, drain, close, and a subject builder. One-shot operations return the platform-native promise (CompletableFuture on the JVM, js/Promise on ClojureScript).
• Queue groups — load-balanced subscriptions via :queue.
• Headers — portable, HTTP-style header normalization on publish and delivery.
• Codecs — :edn by default with zero extra runtime dependencies; opt-in :json and :transit codecs; custom codecs via nats-cljc.codec/register!.
• Connection lifecycle & status events — normalized :on-status notifications with a canonical :type set, identical in shape on every platform.
• Normalized error model — a canonical error :type set surfaced as ex-info, identical in shape on every platform, plus a separate validation-error category for caller misuse.
• Authentication — token, user/password, nkey, JWT, and creds.
• Reconnect — configurable automatic reconnection.
• JVM-only blocking convenience layer (nats-cljc.blocking.core) — the same verb names, synchronous, with a pull-based subscription model.