Establishes VERSIONING.md: SemVer 0.x (MINOR = breaking wire change) for the
release version, and per-plane protocol versions enforced on the wire so
incompatible peers fail fast and legibly instead of via silent decode/signature
errors.
⚠️ BREAKING WIRE CHANGE — all peers must run >= 0.2.0 to interoperate (ALPNs and
gossip subscription topics changed). A pre-0.2.0 peer (e.g. an un-resynced
dopedart) can no longer connect, by design, and now fails at the handshake.
- New src/protocol.rs: single source of truth for AUDIO/FRIENDS/GOSSIP_PROTO,
the derived ALPNs (peerspeak/audio/1, peerspeak/friends/1), GOSSIP_SIG_DOMAIN,
and versioned_topic(). Unit tests assert ALPN/domain strings match their
integer versions (no silent drift) + that topic namespacing is deterministic.
- Unified ALPNs: audio was b"peerspeak-audio" (unversioned, and duplicated in
iroh_impl.rs + core/mod.rs) -> peerspeak/audio/1 from protocol.rs; friends
re-exports protocol::FRIENDS_ALPN (was peerspeak/friends/0 -> /1).
- Gossip: subscribe to versioned_topic(ticket.topic_id) so different gossip
versions never share a swarm; the raw topic_id stays the room identity and
what signatures bind. GOSSIP_SIG_DOMAIN centralized into protocol.rs.
- Cargo.toml 0.1.0 -> 0.2.0.
316 lib tests / clippy --all-targets clean. VERSIONING.md documents the bump
rules, the "I changed X -> what do I bump" table, and a release checklist.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
