# 0.15.0 [unreleased]

- Rename types as per [discussion 2174].
  `Relay` has been renamed to `Behaviour`.
  The `Relay`, and `Client` prefixes have been removed from various types like `ClientTransport`.
  the `v2` namespace has also been removed, users should prefer importing the relay protocol as a module (`use libp2p::relay;`),
  and refer to its types via `relay::`. For example: `relay::Behaviour` or `relay::client::Behaviour`.
  See [PR 3238].

- Update to `libp2p-core` `v0.39.0`.

- Update to `libp2p-swarm` `v0.42.0`.

[PR 3238]: https://github.com/libp2p/rust-libp2p/pull/3238
[discussion 2174]: https://github.com/libp2p/rust-libp2p/issues/2174

# 0.14.0

- Update to `prost-codec` `v0.3.0`.

- Update to `libp2p-core` `v0.38.0`.

- Update to `libp2p-swarm` `v0.41.0`.

- Replace `Client` and `Relay`'s `NetworkBehaviour` implemention `inject_*` methods with the new `on_*` methods.
  See [PR 3011].

- Replace `client::Handler` and `relay::Handler`'s `ConnectionHandler` implemention `inject_*` methods
  with the new `on_*` methods. See [PR 3085].

- Update `rust-version` to reflect the actual MSRV: 1.62.0. See [PR 3090].

[PR 3085]: https://github.com/libp2p/rust-libp2p/pull/3085
[PR 3011]: https://github.com/libp2p/rust-libp2p/pull/3011
[PR 3090]: https://github.com/libp2p/rust-libp2p/pull/3090

# 0.13.0

- Update to `libp2p-core` `v0.37.0`.

- Update to `libp2p-swarm` `v0.40.0`.

- Fix WASM compilation. See [PR 2991].

[PR 2991]: https://github.com/libp2p/rust-libp2p/pull/2991/

# 0.12.0

- Update to `libp2p-swarm` `v0.39.0`.

- Update to `libp2p-core` `v0.36.0`.

# 0.11.0

- Update prost requirement from 0.10 to 0.11 which no longer installs the protoc Protobuf compiler.
  Thus you will need protoc installed locally. See [PR 2788].

- Update to `libp2p-swarm` `v0.38.0`.

- Expose `HOP_PROTOCOL_NAME` and `STOP_PROTOCOL_NAME`. See [PR 2734].

- Update to `libp2p-core` `v0.35.0`.

[PR 2734]: https://github.com/libp2p/rust-libp2p/pull/2734/
[PR 2788]: https://github.com/libp2p/rust-libp2p/pull/2788

# 0.10.0

- Update to `libp2p-core` `v0.34.0`.

- Update to `libp2p-swarm` `v0.37.0`.

- Do not duplicate the p2p/xxx component with the relay PeerId when a client requests a reservation. See [PR 2701].

- Drive the `RelayListener`s within the `ClientTransport`. Add `Transport::poll` and `Transport::remove_listener`
  for `ClientTransport`. See [PR 2652].

[PR 2701]: https://github.com/libp2p/rust-libp2p/pull/2701/
[PR 2652]: https://github.com/libp2p/rust-libp2p/pull/2652

# 0.9.1

- Respond to at most one incoming reservation request. Deny <= 8 incoming
  circuit requests with one per peer. And deny new circuits before accepting new
  circuits. See [PR 2698].

- Expose explicits errors via `UpgradeError` instead of generic `io::Error`. See
  [PR 2698].

[PR 2698]: https://github.com/libp2p/rust-libp2p/pull/2698/

# 0.9.0

- Update to `libp2p-core` `v0.33.0`.

- Update to `libp2p-swarm` `v0.36.0`.

# 0.8.0

- Expose `{Inbound,Outbound}{Hop,Stop}UpgradeError`. See [PR 2586].

- Update to `libp2p-swarm` `v0.35.0`.

- Remove support for Circuit Relay v1 protocol. See [PR 2549].

[PR 2549]: https://github.com/libp2p/rust-libp2p/pull/2549
[PR 2586]: https://github.com/libp2p/rust-libp2p/pull/2586

# 0.7.0 [2022-02-22]

- Update to `libp2p-core` `v0.32.0`.

- Update to `libp2p-swarm` `v0.34.0`.

- Merge NetworkBehaviour's inject_\* paired methods (see [PR 2445]).

[PR 2445]: https://github.com/libp2p/rust-libp2p/pull/2445

# 0.6.1 [2022-02-02]

- Remove empty peer entries in `reservations` `HashMap`. See [PR 2464].

[PR 2464]: https://github.com/libp2p/rust-libp2p/pull/2464

# 0.6.0 [2022-01-27]

- Update dependencies.

- Migrate to Rust edition 2021 (see [PR 2339]).

[PR 2339]: https://github.com/libp2p/rust-libp2p/pull/2339

# 0.5.0 [2021-11-16]

- Use `instant` instead of `wasm-timer` (see [PR 2245]).

- Update dependencies.

[PR 2245]: https://github.com/libp2p/rust-libp2p/pull/2245

# 0.4.0 [2021-11-01]

- Make default features of `libp2p-core` optional.
  [PR 2181](https://github.com/libp2p/rust-libp2p/pull/2181)

- Update dependencies.

- Implement `Debug` for `RelayHandlerEvent` and `RelayHandlerIn`. See [PR 2183].

[PR 2183]: https://github.com/libp2p/rust-libp2p/pull/2183

# 0.3.0 [2021-07-12]

- Update dependencies.

# 0.2.0 [2021-04-13]

- Update `libp2p-swarm`.

# 0.1.0 [2021-03-17]

- First release supporting all major features of the circuit relay v1
  specification. [PR 1838](https://github.com/libp2p/rust-libp2p/pull/1838).