# v2.0.0-alpha.6 — Conversation schema + session export; v2.0 feature-complete

Closes the last open v2.0 / v1.6 items and records the next-line roadmap.

## Added

- **Conversation events under the versioned-schema contract** — events now carry
  `schemaVersion` (stamped on append), `conversation` is registered in
  `ARTIFACT_SCHEMA_VERSIONS`, and `relay-baton migrate` / `doctor --deep` detect
  and normalize legacy `conversation.jsonl` like the other versioned artifacts.
- **`relay-baton session export <archive> --to <dir> [--overwrite]`** — copy an
  archived session out to a destination for sharing or backup. Read-only on the
  archive; refuses to overwrite without `--overwrite`.

## Docs

- ROADMAP: all planned v1.x/v2.0 items are now `[x]`. Added a **"Beyond v2.0 —
  proposed"** section: capability additions (multi-agent matrix, N-way relay,
  deterministic compaction v2, bounded `run --until`, project recipes, local
  usage insight) and hardening (Windows spawn reliability, redact-before-handoff,
  untrusted-bundle/path-traversal safety, signed releases + provenance,
  supply-chain hardening, secret-leak regression scan) — all within the existing
  hard constraints, nothing committed yet.

## v2.0 status

Feature-complete. The artifact schema-v2 line is fully wired (registry +
inspector + migrator across session.json, checkpoints, git-baseline, and
conversation); future version *bumps* plug migrators into the same registry.