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kyleandClaude Opus 5.5 5c8bfe89ac

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chore: release 0.2.0; document the store contract and on_send_error

Bump tines-core and tines-sim to 0.2.0 (Peer::in_flight changed type).
Add CHANGELOG.md. README gains a "Writing a store" section and a note on
calling Exchange::on_send_error when driving Exchange without Node.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2026-10-18 05:24:30 -07:00

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Changelog

All notable changes to the tines crates. Versions follow Semantic Versioning; before 1.0, a minor bump may break the API.

0.2.0 — 2026-10-18

Hardening from a full-codebase review. Wire-compatible with 0.1.0 except where noted.

Added

Exchange::on_send_error: rolls back the last next_frame after a failed send. Node::poll calls it, so a Busy or Unreachable frame is retried instead of being lost.
Store::for_each_addressed_id, with a default that visits every id. MemStore overrides it, so custody no longer reads every broadcast observation on each poll.
Bloom::fold, and Bloom::from_parts now accepts any power-of-two length up to SUMMARY_BYTES. Summaries are folded to fit the transport's MTU; a 0.1.0 node rejects a folded summary, so mixed-version links only sync when the MTU allows a full 512-byte filter.
InFlight, describing a fragment stream in progress.

Changed

Breaking: Peer::in_flight is now Option<InFlight> (was Option<(ObservationId, u8)>).
Custody (addressed) and broadcast sending alternate per peer, and addressed candidates are taken in rotation.
Bounce suppression lasts one contact, as the addressed-delivery spec says.

Fixed

A fragment stream could panic, or send corrupt fragments, when the observation's age changed encoded length mid-stream or the tick went backwards.
Summaries larger than the MTU stopped all broadcast sync on narrow links.
A full bounce table silently stopped recording, so one addressed message was re-sent on every poll and starved broadcast.
An addressed send interrupted another peer's fragment stream, which was then never finished.
An addressed message that couldn't fit the MTU blocked every other addressed message for that peer.
A duplicate addressed message was forwarded back to the carrier that sent it.

CI

Tests, clippy and docs also run without the alloc feature; doc warnings fail the build; --locked everywhere; toolchain pinned to 1.99.0; actions pinned to commit SHAs.

0.1.0

Initial release: tines-core and tines-sim.

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