# Changelog
All notable changes to surf will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://book.async.rs/overview/stability-guarantees.html).
## [Unreleased]
Same as 6.5.0 with one change:
`Config::max_connections_per_host()` is now properly named `Config::set_max_connections_per_host()`.
## [6.5.0]
(Yanked)
### Added
- `Config` has been stabilized and is now available by default!
- `wasm_client` support for `Config` (only timeouts).
- `Config::max_connections_per_host` (Supported on `h1_client` and `curl_client`.)
### Deprecated
- `H1Client::with_max_connections()` will be superseded by `Config::max_connections_per_host`.
## [6.4.1] - 2021-05-19
### Docs
- Added `"unstable-config"` to the docs builds.
## [6.4.0] - 2021-05-17
### Added
- Added a new `unstable-config` feature, which exposes runtime configuration via a new `Config` struct.
## [6.3.5] - 2021-03-12
### Fixed
- Multiple headers of the same name are now present with any client backend and not just `h1_client`.
- Connection when multiple IPs are present for a hostname not function with the `h1_client` backend.
## [6.3.4] - 2021-03-06
### Fixed
- `h1_client` connection pools now properly check if connections are still alive before recycling them.
- Like, actually properly this time.
- There is a test now to ensure closed connections don't cause errors.
## [6.3.3] - 2021-03-01
### Fixed
- `h1_client` connection pools now properly check if connections are still alive before recycling them.
## [6.3.2] - 2021-03-01
_(This was the same thing as 6.3.1 released by git accident.)_
## [6.3.1] - 2021-02-15
### Fixed
- Allow http-client to build & run properly when `h1_client` is enabled without either tls option.
- Prefer `rustls` if both tls features are enabled.
### Internal
- More exhaustive CI for feature combinations.
## [6.3.0] - 2021-02-12
### Added
- Connection pooling (HTTP/1.1 `keep-alive`) for `h1_client` (default).
- `native-tls` (default) and `rustls` feature flags.
- Only works with `h1_client`.
- Isahc metrics as a response extension for `curl_client`.
### Fixed
- `Box<dyn HttpClient>` no longer infinitely recurses.
- `curl_client` now always correctly reads the response body.
- `hyper_client` should now build correctly.
- `WasmClient` fetch from worker scope now works correctly.
### Internal
- Improved CI
## [6.2.0] - 2020-10-26
This release implements `HttpClient` for `Box<dyn HttpClient>`.
### Added
- `impl HttpClient for Box<dyn HttpClient>`
## [6.1.0] - 2020-10-09
This release brings improvements for `HyperClient` (`hyper_client` feature).
### Added
- `HyperClient` now impls `Default`.
- `HyperClient::from_client(hyper::Client<C>)`.
### Changed
- `HyperClient` now re-uses the internal client, allowing connection pooling.
## [6.0.0] - 2020-09-25
This release moves the responsibility of any client sharing to the user.
### Changed
- `HttpClient` implementations no longer `impl Clone`.
- The responsibility for sharing is the user's.
- `H1Client` can no longer be instatiated via `H1Client {}`.
- `::new()` should be used.
## [5.0.1] - 2020-09-18
### Fixed
- Fixed a body stream translation bug in the `hyper_client`.
## [5.0.0] - 2020-09-18
This release includes an optional backend using [hyper.rs](https://hyper.rs/), and uses [async-trait](https://crates.io/crates/async-trait) for `HttpClient`.
### Added
- `hyper_client` feature, for using [hyper.rs](https://hyper.rs/) as the client backend.
### Changed
- `HttpClient` now uses [async-trait](https://crates.io/crates/async-trait).
- This attribute is also re-exported as `http_client::async_trait`.
### Fixed
- Fixed WASM compilation.
- Fixed Isahc (curl) client translation setting duplicate headers incorrectly.
## [4.0.0] - 2020-07-09
This release allows `HttpClient` to be used as a dynamic Trait object.
- `HttpClient`: removed `Clone` bounds.
- `HttpClient`: removed `Error` type.
## [3.0.0] - 2020-05-29
This patch updates `http-client` to `http-types 2.0.0` and a new version of `async-h1`.
### Changes
- http types and async-h1 for 2.0.0 #27
## [2.0.0] - 2020-04-17
### Added
- Added a new backend: `h1-client` https://github.com/http-rs/http-client/pull/22
### Changed
- All types are now based from `hyperium/http` to `http-types` https://github.com/http-rs/http-client/pull/22