Version 0.13.1

0.13.1 (April 28th, 2021)

Fixed

• More resiliant testing for closed connections. (Pull #311)
• Don't raise exceptions on ungraceful connection closes. (Pull #310)

Version 0.13.0

0.13.0 (April 21st, 2021)

The 0.13 release updates the core API in order to match the HTTPX Transport API,
introduced in HTTPX 0.18 onwards.

An example of making requests with the new interface is:

with httpcore.SyncConnectionPool() as http:
    status_code, headers, stream, extensions = http.handle_request(
        method=b'GET',
        url=(b'https', b'example.org', 443, b'/'),
        headers=[(b'host', b'example.org'), (b'user-agent', b'httpcore')]
        stream=httpcore.ByteStream(b''),
        extensions={}
    )
    body = stream.read()
    print(status_code, body)

Changed

• The .request() method is now handle_request(). (Pull #296)
• The .arequest() method is now .handle_async_request(). (Pull #296)
• The headers argument is no longer optional. (Pull #296)
• The stream argument is no longer optional. (Pull #296)
• The ext argument is now named extensions, and is no longer optional. (Pull #296)
• The "reason" extension keyword is now named "reason_phrase". (Pull #296)
• The "reason_phrase" and "http_version" extensions now use byte strings for their values. (Pull #296)
• The httpcore.PlainByteStream() class becomes httpcore.ByteStream(). (Pull #296)

Added

• Streams now support a .read() interface. (Pull #296)

Fixed

• Task cancelation no longer leaks connections from the connection pool. (Pull #305)

Version 0.12.3

0.12.3 (December 7th, 2020)

Fixed

• Abort SSL connections on close rather than waiting for remote EOF when using asyncio. (Pull #167)
• Fix exception raised in case of connect timeouts when using the anyio backend. (Pull #236)
• Fix Host header precedence for :authority in HTTP/2. (Pull #241, #243)
• Handle extra edge case when detecting for socket readability when using asyncio. (Pull #242, #244)
• Fix asyncio SSL warning when using proxy tunneling. (Pull #249)

Version 0.12.2

0.12.2 (November 20th, 2020)

Fixed

• Properly wrap connect errors on the asyncio backend. (Pull #235)
• Fix ImportError occurring on Python 3.9 when using the HTTP/1.1 sync client in a multithreaded context. (Pull #237)

Version 0.12.1

0.12.1 - 2020-11-07

Added

• Add connect retries. (Pull #221)

Fixed

• Tweak detection of dropped connections, resolving an issue with open files limits on Linux. (Pull #185)
• Avoid leaking connections when establishing an HTTP tunnel to a proxy has failed. (Pull #223)
• Properly wrap OS errors when using trio. (Pull #225)

Version 0.12.0

0.12.0 (October 6th, 2020)

Changed

• HTTP header casing is now preserved, rather than always sent in lowercase. (#216 and python-hyper/h11#104)

Added

• Add Python 3.9 to officially supported versions.

Fixed

• Gracefully handle a stdlib asyncio bug when a connection is closed while it is in a paused-for-reading state. (#201)

Version 0.11.1

0.11.1 (September 28nd, 2020)

Fixed

• Add await to async semaphore release() coroutine (#197)
• Drop incorrect curio classifier (#192)

Version 0.11.0

0.11.0 (September 22nd, 2020)

The Transport API with 0.11.0 has a couple of significant changes.

Firstly we've moved changed the request interface in order to allow extensions, which will later enable us to support features
such as trailing headers, HTTP/2 server push, and CONNECT/Upgrade connections.

The interface changes from:

def request(method, url, headers, stream, timeout):
    return (http_version, status_code, reason, headers, stream)

To instead including an optional dictionary of extensions on the request and response:

def request(method, url, headers, stream, ext):
    return (status_code, headers, stream, ext)

Having an open-ended extensions point will allow us to add later support for various optional features, that wouldn't otherwise be supported without these API changes.

In particular:

• Trailing headers support.
• HTTP/2 Server Push
• sendfile.
• Exposing raw connection on CONNECT, Upgrade, HTTP/2 bi-di streaming.
• Exposing debug information out of the API, including template name, template context.

Currently extensions are limited to:

• request: timeout - Optional. Timeout dictionary.
• response: http_version - Optional. Include the HTTP version used on the response.
• response: reason - Optional. Include the reason phrase used on the response. Only valid with HTTP/1.*.

See encode/httpx#1274 (comment) for the history behind this.

Secondly, the async version of request is now namespaced as arequest.

This allows concrete transports to support both sync and async implementations on the same class.

Added

• Add curio support. (Pull #168)
• Add anyio support, with backend="anyio". (Pull #169)

Changed

• Update the Transport API to use 'ext' for optional extensions. (Pull #190)
• Update the Transport API to use .request and .arequest so implementations can support both sync and async. (Pull #189)

Version 0.10.2

0.10.2 (August 20th, 2020)

Added

• Added Unix Domain Socket support. (Pull #139)

Fixed

• Always include the port on proxy CONNECT requests. (Pull #154)
• Fix max_keepalive_connections configuration. (Pull #153)
• Fixes behaviour in HTTP/1.1 where server disconnects can be used to signal the end of the response body. (Pull #164)

Version 0.10.1

0.10.1 (August 7th, 2020)

• Include max_keepalive_connections on AsyncHTTPProxy/SyncHTTPProxy classes.