Versioning and Roadmap

Versioning and Roadmap

tyo-mq grew through six planned phases (PLAN.md), each released as a backwards-compatible minor version:

Version	Milestone
0.4.x	Phase 1 — token auth + realm isolation (opt-in)
0.5.x	Phase 2 — persistence, durable queues, TTL (opt-in per subscription)
0.6.x	Phase 3 — ACK, retry, dead-letter queue (ACK negotiated per subscription)
0.7.x	Roles rework — manager role, pre-shared keys, producer acceptance
0.8.x	Phase 4 — topic wildcards, consumer groups, broadcast (opt-in)
0.9.x	Phase 6 tier 1 — cluster settings sync over shared Redis (opt-in)
0.10.x	Phase 5 — opt-in HTTP observability (health, Prometheus metrics, stats, DLQ)
0.11.x	Phase 6 complete — live cross-node routing, shared authorization requests, DLQ tooling; relicensed MIT → Apache-2.0
0.14.x	Ephemeral Realms (disposable, TTL-swept realm form); opt-in SQLite auth store for realms/tokens (Server Configuration); realm-/prefix-scoped external auth validators (Authentication and Realms)
1.0.0	All phases stable; semantic versioning from here

Compatibility promises

• new Server(), createProducer(), createConsumer() — stable API.
• Every major feature is opt-in: auth (auth.enabled), durability (durable per subscription), ACK (per subscription), topics (mode: 'topic'), groups (group), broadcast (produce option), HTTP API (http_api.enabled), clustering (cluster.enabled), the SQLite auth store (auth_store), ephemeral realms (ephemeral per realm), and scoped external validators (per realm/prefix). A configuration that doesn't mention them behaves like the original broker.
• Default port 17352, socket.io transport, and the npm package name don't change.

What does not change

• socket.io as the transport (browser compatibility, wide client support)
• JavaScript / Node.js
• Apache-2.0 license (relicensed from MIT in 0.11.x)

Use cases the feature set unlocks

Use case	Features
Fleet control — commands to remote agents across orgs	realms + durability + ACK + topics + broadcast
Multi-tenant SaaS event bus	auth + realms + pre-shared keys
Microservice bus with load-balanced workers	consumer groups
Reliable task queue surviving worker restarts	durable + ACK + retry + DLQ
Real-time dashboards	topic wildcards + metrics
Remote screen/control sessions	/remote ticket streaming