Changelog

This page mirrors CHANGELOG.md at the repo root. The repo file is the source of truth — this is the human-friendly view.

3.0.0-alpha — June 2026

The “Digital Brain” release. The major v3 work is landed and wired at server boot (alpha — interfaces may still change before 3.0 stable).

10 typed memory primitives now live with tables, RLS, HNSW indexes, and MCP tools: fact, decision, episode, entity, strategy, workflow, skill, task, event, reasoning (plus hyperedge as an n-ary relation kind).
26 MCP tools (up from the v2 surface) — recall, remember, pin, forget, timeline, search, relate, decide, entity, status, session, task, event, reasoning, strategy, self-edit, hyperedge, introspect, anticipate, compose, workflow, skill, consolidate, remind-when, episode start/end.
gRPC via ConnectRPC — 17 RPCs path-dispatched on the same HTTP port (10 unary + 7 streaming).
WebSocket subscriptions at GET /v1/memory/ws.
Federation — Ed25519 + mTLS peer sync with LWW / supermajority / consensus conflict resolution.
Consolidation worker — ConsolidationGate + ReplayValidator + scheduler, wired at boot.
Plugin architecture (@mnemosyne/plugins) with builtin plugins.
CUP (@mnemosyne/cup) — v2→v3 migration tooling.
Zero-LLM intelligence: anticipation, meta-cognition, composition, and trust-anchor consensus.
Migration journal grows to 75 numbered migrations (0001–0075).

Mode A is now first-class. The embedFn is optional everywhere instead of being a hard requirement.
LLM layer expands to 7 providers (OpenAI, Anthropic, Google, Cohere, Mistral, Voyage, Ollama) behind an LLMRouter with a BudgetGuard USD spend cap.

The “service extraction” release. Mnemosyne becomes an independent HTTP-first product, no longer a library-only dep.

BREAKING: mnemo_* namespacing replaces the legacy brain_* tables. Migration 0024 ships the backfill.

Final library-mode release before service extraction.