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3.8.4 (2023-02-12)

Bugfixes

  • Fixed incorrectly overwriting cookies with the same name and domain, but different path. #6638
  • Fixed ConnectionResetError not being raised after client disconnection in SSL environments. #7180

3.8.3 (2022-09-21)

Attention!

This is the last :doc:`aiohttp <index>` release tested under Python 3.6. The 3.9 stream is dropping it from the CI and the distribution package metadata.

Bugfixes

3.8.2 (2022-09-20, subsequently yanked on 2022-09-21)

Bugfixes

Improved Documentation

Deprecations and Removals

  • Drop Python 3.5 support, aiohttp works on 3.6+ now. #4046

Misc

3.8.1 (2021-11-14)

Bugfixes

  • Fix the error in handling the return value of getaddrinfo. getaddrinfo will return an (int, bytes) tuple, if CPython could not handle the address family. It will cause an index out of range error in aiohttp. For example, if user compile CPython with --disable-ipv6 option, but his system enable the ipv6. #5901
  • Do not install "examples" as a top-level package. #6189
  • Restored ability to connect IPv6-only host. #6195
  • Remove Signal from __all__, replace aiohttp.Signal with aiosignal.Signal in docs #6201
  • Made chunked encoding HTTP header check stricter. #6305

Improved Documentation

  • update quick starter demo codes. #6240
  • Added an explanation of how tiny timeouts affect performance to the client reference document. #6274
  • Add flake8-docstrings to flake8 configuration, enable subset of checks. #6276
  • Added information on running complex applications with additional tasks/processes -- :user:`Dreamsorcerer`. #6278

Misc

3.8.0 (2021-10-31)

Features

  • Added a GunicornWebWorker feature for extending the aiohttp server configuration by allowing the 'wsgi' coroutine to return web.AppRunner object. #2988

  • Switch from http-parser to llhttp #3561

  • Use Brotli instead of brotlipy #3803

  • Disable implicit switch-back to pure python mode. The build fails loudly if aiohttp cannot be compiled with C Accelerators. Use AIOHTTP_NO_EXTENSIONS=1 to explicitly disable C Extensions complication and switch to Pure-Python mode. Note that Pure-Python mode is significantly slower than compiled one. #3828

  • Make access log use local time with timezone #3853

  • Implemented readuntil in StreamResponse #4054

  • FileResponse now supports ETag. #4594

  • Add a request handler type alias aiohttp.typedefs.Handler. #4686

  • AioHTTPTestCase is more async friendly now.

    For people who use unittest and are used to use :py:exc:`~unittest.TestCase` it will be easier to write new test cases like the sync version of the :py:exc:`~unittest.TestCase` class, without using the decorator @unittest_run_loop, just async def test_*. The only difference is that for the people using python3.7 and below a new dependency is needed, it is asynctestcase. #4700

  • Add validation of HTTP header keys and values to prevent header injection. #4818

  • Add predicate to AbstractCookieJar.clear. Add AbstractCookieJar.clear_domain to clean all domain and subdomains cookies only. #4942

  • Add keepalive_timeout parameter to web.run_app. #5094

  • Tracing for client sent headers #5105

  • Make type hints for http parser stricter #5267

  • Add final declarations for constants. #5275

  • Switch to external frozenlist and aiosignal libraries. #5293

  • Don't send secure cookies by insecure transports.

    By default, the transport is secure if https or wss scheme is used. Use CookieJar(treat_as_secure_origin="http://127.0.0.1") to override the default security checker. #5571

  • Always create a new event loop in aiohttp.web.run_app(). This adds better compatibility with asyncio.run() or if trying to run multiple apps in sequence. #5572

  • Add aiohttp.pytest_plugin.AiohttpClient for static typing of pytest plugin. #5585

  • Added a socket_factory argument to BaseTestServer. #5844

  • Add compression strategy parameter to enable_compression method. #5909

  • Added support for Python 3.10 to Github Actions CI/CD workflows and fix the related deprecation warnings -- :user:`Hanaasagi`. #5927

  • Switched chardet to charset-normalizer for guessing the HTTP payload body encoding -- :user:`Ousret`. #5930

  • Added optional auto_decompress argument for HttpRequestParser #5957

  • Added support for HTTPS proxies to the extent CPython's :py:mod:`asyncio` supports it -- by :user:`bmbouter`, :user:`jborean93` and :user:`webknjaz`. #5992

  • Added base_url parameter to the initializer of :class:`~aiohttp.ClientSession`. #6013

  • Add Trove classifier and create binary wheels for 3.10. -- :user:`hugovk`. #6079

  • Started shipping platform-specific wheels with the musl tag targeting typical Alpine Linux runtimes — :user:`asvetlov`. #6139

  • Started shipping platform-specific arm64 wheels for Apple Silicon — :user:`asvetlov`. #6139

Bugfixes

  • Modify _drain_helper() to handle concurrent await resp.write(...) or ws.send_json(...) calls without race-condition. #2934
  • Started using MultiLoopChildWatcher when it's available under POSIX while setting up the test I/O loop. #3450
  • Only encode content-disposition filename parameter using percent-encoding. Other parameters are encoded to quoted-string or RFC2231 extended parameter value. #4012
  • Fixed HTTP client requests to honor no_proxy environment variables. #4431
  • Fix supporting WebSockets proxies configured via environment variables. #4648
  • Change return type on URLDispatcher to UrlMappingMatchInfo to improve type annotations. #4748
  • Ensure a cleanup context is cleaned up even when an exception occurs during startup. #4799
  • Added a new exception type for Unix socket client errors which provides a more useful error message. #4984
  • Remove Transfer-Encoding and Content-Type headers for 204 in StreamResponse #5106
  • Only depend on typing_extensions for Python <3.8 #5107
  • Add ABNORMAL_CLOSURE and BAD_GATEWAY to WSCloseCode #5192
  • Fix cookies disappearing from HTTPExceptions. #5233
  • StaticResource prefixes no longer match URLs with a non-folder prefix. For example routes.static('/foo', '/foo') no longer matches the URL /foobar. Previously, this would attempt to load the file /foo/ar. #5250
  • Acquire the connection before running traces to prevent race condition. #5259
  • Add missing slots to `_RequestContextManager and _WSRequestContextManager #5329
  • Ensure sending a zero byte file does not throw an exception (round 2) #5380
  • Set "text/plain" when data is an empty string in client requests. #5392
  • Stop automatically releasing the ClientResponse object on calls to the ok property for the failed requests. #5403
  • Include query parameters from params keyword argument in tracing URL. #5432
  • Fix annotations #5466
  • Fixed the multipart POST requests processing to always release file descriptors for the tempfile.Temporaryfile-created _io.BufferedRandom instances of files sent within multipart request bodies via HTTP POST requests -- by :user:`webknjaz`. #5494
  • Fix 0 being incorrectly treated as an immediate timeout. #5527
  • Fixes failing tests when an environment variable <scheme>_proxy is set. #5554
  • Replace deprecated app handler design in tests/autobahn/server.py with call to web.run_app; replace deprecated aiohttp.ws_connect calls in tests/autobahn/client.py with aiohttp.ClienSession.ws_connect. #5606
  • Fixed test for HTTPUnauthorized that access the text argument. This is not used in any part of the code, so it's removed now. #5657
  • Remove incorrect default from docs #5727
  • Remove external test dependency to http://httpbin.org #5840
  • Don't cancel current task when entering a cancelled timer. #5853
  • Added params keyword argument to ClientSession.ws_connect. -- :user:`hoh`. #5868
  • Uses :py:class:`~asyncio.ThreadedChildWatcher` under POSIX to allow setting up test loop in non-main thread. #5877
  • Fix the error in handling the return value of getaddrinfo. getaddrinfo will return an (int, bytes) tuple, if CPython could not handle the address family. It will cause a index out of range error in aiohttp. For example, if user compile CPython with --disable-ipv6 option but his system enable the ipv6. #5901
  • Removed the deprecated loop argument from the asyncio.sleep/gather calls #5905
  • Return None from request.if_modified_since, request.if_unmodified_since, request.if_range and response.last_modified when corresponding http date headers are invalid. #5925
  • Fix resetting SIGCHLD signals in Gunicorn aiohttp Worker to fix subprocesses that capture output having an incorrect returncode. #6130
  • Raise 400: Content-Length can't be present with Transfer-Encoding if both Content-Length and Transfer-Encoding are sent by peer by both C and Python implementations #6182

Improved Documentation

  • Refactored OpenAPI/Swagger aiohttp addons, added aio-openapi #5326
  • Fixed docs on request cookies type, so it matches what is actually used in the code (a read-only dictionary-like object). #5725
  • Documented that the HTTP client Authorization header is removed on redirects to a different host or protocol. #5850

Misc

3.7.4.post0 (2021-03-06)

Misc

  • Bumped upper bound of the chardet runtime dependency to allow their v4.0 version stream. #5366

3.7.4 (2021-02-25)

Bugfixes

  • (SECURITY BUG) Started preventing open redirects in the aiohttp.web.normalize_path_middleware middleware. For more details, see https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg.

    Thanks to Beast Glatisant for finding the first instance of this issue and Jelmer Vernooij for reporting and tracking it down in aiohttp. #5497

  • Fix interpretation difference of the pure-Python and the Cython-based HTTP parsers construct a yarl.URL object for HTTP request-target.

    Before this fix, the Python parser would turn the URI's absolute-path for //some-path into / while the Cython code preserved it as //some-path. Now, both do the latter. #5498

3.7.3 (2020-11-18)

Features

  • Use Brotli instead of brotlipy #3803
  • Made exceptions pickleable. Also changed the repr of some exceptions. #4077

Bugfixes

  • Raise a ClientResponseError instead of an AssertionError for a blank HTTP Reason Phrase. #3532
  • Fix web_middlewares.normalize_path_middleware behavior for patch without slash. #3669
  • Fix overshadowing of overlapped sub-applications prefixes. #3701
  • Make BaseConnector.close() a coroutine and wait until the client closes all connections. Drop deprecated "with Connector():" syntax. #3736
  • Reset the sock_read timeout each time data is received for a aiohttp.client response. #3808
  • Fixed type annotation for add_view method of UrlDispatcher to accept any subclass of View #3880
  • Fixed querying the address families from DNS that the current host supports. #5156
  • Change return type of MultipartReader.__aiter__() and BodyPartReader.__aiter__() to AsyncIterator. #5163
  • Provide x86 Windows wheels. #5230

Improved Documentation

  • Add documentation for aiohttp.web.FileResponse. #3958
  • Removed deprecation warning in tracing example docs #3964
  • Fixed wrong "Usage" docstring of aiohttp.client.request. #4603
  • Add aiohttp-pydantic to third party libraries #5228

Misc

3.7.2 (2020-10-27)

Bugfixes

  • Fixed static files handling for loops without .sendfile() support #5149

3.7.1 (2020-10-25)

Bugfixes

  • Fixed a type error caused by the conditional import of Protocol. #5111
  • Server doesn't send Content-Length for 1xx or 204 #4901
  • Fix run_app typing #4957
  • Always require typing_extensions library. #5107
  • Fix a variable-shadowing bug causing ThreadedResolver.resolve to return the resolved IP as the hostname in each record, which prevented validation of HTTPS connections. #5110
  • Added annotations to all public attributes. #5115
  • Fix flaky test_when_timeout_smaller_second #5116
  • Ensure sending a zero byte file does not throw an exception #5124
  • Fix a bug in web.run_app() about Python version checking on Windows #5127

3.7.0 (2020-10-24)

Features

  • Response headers are now prepared prior to running on_response_prepare hooks, directly before headers are sent to the client. #1958
  • Add a quote_cookie option to CookieJar, a way to skip quotation wrapping of cookies containing special characters. #2571
  • Call AccessLogger.log with the current exception available from sys.exc_info(). #3557
  • web.UrlDispatcher.add_routes and web.Application.add_routes return a list of registered AbstractRoute instances. AbstractRouteDef.register (and all subclasses) return a list of registered resources registered resource. #3866
  • Added properties of default ClientSession params to ClientSession class so it is available for introspection #3882
  • Don't cancel web handler on peer disconnection, raise OSError on reading/writing instead. #4080
  • Implement BaseRequest.get_extra_info() to access a protocol transports' extra info. #4189
  • Added ClientSession.timeout property. #4191
  • allow use of SameSite in cookies. #4224
  • Use loop.sendfile() instead of custom implementation if available. #4269
  • Apply SO_REUSEADDR to test server's socket. #4393
  • Use .raw_host instead of slower .host in client API #4402
  • Allow configuring the buffer size of input stream by passing read_bufsize argument. #4453
  • Pass tests on Python 3.8 for Windows. #4513
  • Add method and url attributes to TraceRequestChunkSentParams and TraceResponseChunkReceivedParams. #4674
  • Add ClientResponse.ok property for checking status code under 400. #4711
  • Don't ceil timeouts that are smaller than 5 seconds. #4850
  • TCPSite now listens by default on all interfaces instead of just IPv4 when None is passed in as the host. #4894
  • Bump http_parser to 2.9.4 #5070

Bugfixes

  • Fix keepalive connections not being closed in time #3296

  • Fix failed websocket handshake leaving connection hanging. #3380

  • Fix tasks cancellation order on exit. The run_app task needs to be cancelled first for cleanup hooks to run with all tasks intact. #3805

  • Don't start heartbeat until _writer is set #4062

  • Fix handling of multipart file uploads without a content type. #4089

  • Preserve view handler function attributes across middlewares #4174

  • Fix the string representation of ServerDisconnectedError. #4175

  • Raising RuntimeError when trying to get encoding from not read body #4214

  • Remove warning messages from noop. #4282

  • Raise ClientPayloadError if FormData re-processed. #4345

  • Fix a warning about unfinished task in web_protocol.py #4408

  • Fixed 'deflate' compression. According to RFC 2616 now. #4506

  • Fixed OverflowError on platforms with 32-bit time_t #4515

  • Fixed request.body_exists returns wrong value for methods without body. #4528

  • Fix connecting to link-local IPv6 addresses. #4554

  • Fix a problem with connection waiters that are never awaited. #4562

  • Always make sure transport is not closing before reuse a connection.

    Reuse a protocol based on keepalive in headers is unreliable. For example, uWSGI will not support keepalive even it serves a HTTP 1.1 request, except explicitly configure uWSGI with a --http-keepalive option.

    Servers designed like uWSGI could cause aiohttp intermittently raise a ConnectionResetException when the protocol poll runs out and some protocol is reused. #4587

  • Handle the last CRLF correctly even if it is received via separate TCP segment. #4630

  • Fix the register_resource function to validate route name before splitting it so that route name can include python keywords. #4691

  • Improve typing annotations for web.Request, aiohttp.ClientResponse and multipart module. #4736

  • Fix resolver task is not awaited when connector is cancelled #4795

  • Fix a bug "Aiohttp doesn't return any error on invalid request methods" #4798

  • Fix HEAD requests for static content. #4809

  • Fix incorrect size calculation for memoryview #4890

  • Add HTTPMove to _all__. #4897

  • Fixed the type annotations in the tracing module. #4912

  • Fix typing for multipart __aiter__. #4931

  • Fix for race condition on connections in BaseConnector that leads to exceeding the connection limit. #4936

  • Add forced UTF-8 encoding for application/rdap+json responses. #4938

  • Fix inconsistency between Python and C http request parsers in parsing pct-encoded URL. #4972

  • Fix connection closing issue in HEAD request. #5012

  • Fix type hint on BaseRunner.addresses (from List[str] to List[Any]) #5086

  • Make web.run_app() more responsive to Ctrl+C on Windows for Python < 3.8. It slightly increases CPU load as a side effect. #5098

Improved Documentation

  • Fix example code in client quick-start #3376
  • Updated the docs so there is no contradiction in ttl_dns_cache default value #3512
  • Add 'Deploy with SSL' to docs. #4201
  • Change typing of the secure argument on StreamResponse.set_cookie from Optional[str] to Optional[bool] #4204
  • Changes ttl_dns_cache type from int to Optional[int]. #4270
  • Simplify README hello word example and add a documentation page for people coming from requests. #4272
  • Improve some code examples in the documentation involving websockets and starting a simple HTTP site with an AppRunner. #4285
  • Fix typo in code example in Multipart docs #4312
  • Fix code example in Multipart section. #4314
  • Update contributing guide so new contributors read the most recent version of that guide. Update command used to create test coverage reporting. #4810
  • Spelling: Change "canonize" to "canonicalize". #4986
  • Add aiohttp-sse-client library to third party usage list. #5084

Misc

3.6.3 (2020-10-12)

Bugfixes

  • Pin yarl to <1.6.0 to avoid buggy behavior that will be fixed by the next aiohttp release.

3.6.2 (2019-10-09)

Features

  • Made exceptions pickleable. Also changed the repr of some exceptions. #4077
  • Use Iterable type hint instead of Sequence for Application middleware parameter. #4125

Bugfixes

  • Reset the sock_read timeout each time data is received for a aiohttp.ClientResponse. #3808
  • Fix handling of expired cookies so they are not stored in CookieJar. #4063
  • Fix misleading message in the string representation of ClientConnectorError; self.ssl == None means default SSL context, not SSL disabled #4097
  • Don't clobber HTTP status when using FileResponse. #4106

Improved Documentation

  • Added minimal required logging configuration to logging documentation. #2469
  • Update docs to reflect proxy support. #4100
  • Fix typo in code example in testing docs. #4108

Misc

3.6.1 (2019-09-19)

Features

  • Compatibility with Python 3.8. #4056

Bugfixes

  • correct some exception string format #4068
  • Emit a warning when ssl.OP_NO_COMPRESSION is unavailable because the runtime is built against an outdated OpenSSL. #4052
  • Update multidict requirement to >= 4.5 #4057

Improved Documentation

  • Provide pytest-aiohttp namespace for pytest fixtures in docs. #3723

3.6.0 (2019-09-06)

Features

  • Add support for Named Pipes (Site and Connector) under Windows. This feature requires Proactor event loop to work. #3629
  • Removed Transfer-Encoding: chunked header from websocket responses to be compatible with more http proxy servers. #3798
  • Accept non-GET request for starting websocket handshake on server side. #3980

Bugfixes

  • Raise a ClientResponseError instead of an AssertionError for a blank HTTP Reason Phrase. #3532

  • Fix an issue where cookies would sometimes not be set during a redirect. #3576

  • Change normalize_path_middleware to use '308 Permanent Redirect' instead of 301.

    This behavior should prevent clients from being unable to use PUT/POST methods on endpoints that are redirected because of a trailing slash. #3579

  • Drop the processed task from all_tasks() list early. It prevents logging about a task with unhandled exception when the server is used in conjunction with asyncio.run(). #3587

  • Signal type annotation changed from Signal[Callable[['TraceConfig'], Awaitable[None]]] to Signal[Callable[ClientSession, SimpleNamespace, ...]. #3595

  • Use sanitized URL as Location header in redirects #3614

  • Improve typing annotations for multipart.py along with changes required by mypy in files that references multipart.py. #3621

  • Close session created inside aiohttp.request when unhandled exception occurs #3628

  • Cleanup per-chunk data in generic data read. Memory leak fixed. #3631

  • Use correct type for add_view and family #3633

  • Fix _keepalive field in __slots__ of RequestHandler. #3644

  • Properly handle ConnectionResetError, to silence the "Cannot write to closing transport" exception when clients disconnect uncleanly. #3648

  • Suppress pytest warnings due to test_utils classes #3660

  • Fix overshadowing of overlapped sub-application prefixes. #3701

  • Fixed return type annotation for WSMessage.json() #3720

  • Properly expose TooManyRedirects publicly as documented. #3818

  • Fix missing brackets for IPv6 in proxy CONNECT request #3841

  • Make the signature of aiohttp.test_utils.TestClient.request match asyncio.ClientSession.request according to the docs #3852

  • Use correct style for re-exported imports, makes mypy --strict mode happy. #3868

  • Fixed type annotation for add_view method of UrlDispatcher to accept any subclass of View #3880

  • Made cython HTTP parser set Reason-Phrase of the response to an empty string if it is missing. #3906

  • Add URL to the string representation of ClientResponseError. #3959

  • Accept istr keys in LooseHeaders type hints. #3976

  • Fixed race conditions in _resolve_host caching and throttling when tracing is enabled. #4013

  • For URLs like "unix://localhost/..." set Host HTTP header to "localhost" instead of "localhost:None". #4039

Improved Documentation

  • Modify documentation for Background Tasks to remove deprecated usage of event loop. #3526
  • use if __name__ == '__main__': in server examples. #3775
  • Update documentation reference to the default access logger. #3783
  • Improve documentation for web.BaseRequest.path and web.BaseRequest.raw_path. #3791
  • Removed deprecation warning in tracing example docs #3964

3.5.4 (2019-01-12)

Bugfixes

  • Fix stream .read() / .readany() / .iter_any() which used to return a partial content only in case of compressed content #3525

3.5.3 (2019-01-10)

Bugfixes

  • Fix type stubs for aiohttp.web.run_app(access_log=True) and fix edge case of access_log=True and the event loop being in debug mode. #3504
  • Fix aiohttp.ClientTimeout type annotations to accept None for fields #3511
  • Send custom per-request cookies even if session jar is empty #3515
  • Restore Linux binary wheels publishing on PyPI

3.5.2 (2019-01-08)

Features

  • FileResponse from web_fileresponse.py uses a ThreadPoolExecutor to work with files asynchronously. I/O based payloads from payload.py uses a ThreadPoolExecutor to work with I/O objects asynchronously. #3313
  • Internal Server Errors in plain text if the browser does not support HTML. #3483

Bugfixes

  • Preserve MultipartWriter parts headers on write. Refactor the way how Payload.headers are handled. Payload instances now always have headers and Content-Type defined. Fix Payload Content-Disposition header reset after initial creation. #3035
  • Log suppressed exceptions in GunicornWebWorker. #3464
  • Remove wildcard imports. #3468
  • Use the same task for app initialization and web server handling in gunicorn workers. It allows to use Python3.7 context vars smoothly. #3471
  • Fix handling of chunked+gzipped response when first chunk does not give uncompressed data #3477
  • Replace collections.MutableMapping with collections.abc.MutableMapping to avoid a deprecation warning. #3480
  • Payload.size type annotation changed from Optional[float] to Optional[int]. #3484
  • Ignore done tasks when cancels pending activities on web.run_app finalization. #3497

Improved Documentation

  • Add documentation for aiohttp.web.HTTPException. #3490

Misc

3.5.1 (2018-12-24)

  • Fix a regression about ClientSession._requote_redirect_url modification in debug mode.

3.5.0 (2018-12-22)

Features

  • The library type annotations are checked in strict mode now.
  • Add support for setting cookies for individual request (#2387)
  • Application.add_domain implementation (#2809)
  • The default app in the request returned by test_utils.make_mocked_request can now have objects assigned to it and retrieved using the [] operator. (#3174)
  • Make request.url accessible when transport is closed. (#3177)
  • Add zlib_executor_size argument to Response constructor to allow compression to run in a background executor to avoid blocking the main thread and potentially triggering health check failures. (#3205)
  • Enable users to set ClientTimeout in aiohttp.request (#3213)
  • Don't raise a warning if NETRC environment variable is not set and ~/.netrc file doesn't exist. (#3267)
  • Add default logging handler to web.run_app If the Application.debug` flag is set and the default logger aiohttp.access is used, access logs will now be output using a stderr StreamHandler if no handlers are attached. Furthermore, if the default logger has no log level set, the log level will be set to DEBUG. (#3324)
  • Add method argument to session.ws_connect(). Sometimes server API requires a different HTTP method for WebSocket connection establishment. For example, Docker exec needs POST. (#3378)
  • Create a task per request handling. (#3406)

Bugfixes

  • Enable passing access_log_class via handler_args (#3158)
  • Return empty bytes with end-of-chunk marker in empty stream reader. (#3186)
  • Accept CIMultiDictProxy instances for headers argument in web.Response constructor. (#3207)
  • Don't uppercase HTTP method in parser (#3233)
  • Make method match regexp RFC-7230 compliant (#3235)
  • Add app.pre_frozen state to properly handle startup signals in sub-applications. (#3237)
  • Enhanced parsing and validation of helpers.BasicAuth.decode. (#3239)
  • Change imports from collections module in preparation for 3.8. (#3258)
  • Ensure Host header is added first to ClientRequest to better replicate browser (#3265)
  • Fix forward compatibility with Python 3.8: importing ABCs directly from the collections module will not be supported anymore. (#3273)
  • Keep the query string by normalize_path_middleware. (#3278)
  • Fix missing parameter raise_for_status for aiohttp.request() (#3290)
  • Bracket IPv6 addresses in the HOST header (#3304)
  • Fix default message for server ping and pong frames. (#3308)
  • Fix tests/test_connector.py typo and tests/autobahn/server.py duplicate loop def. (#3337)
  • Fix false-negative indicator end_of_HTTP_chunk in StreamReader.readchunk function (#3361)
  • Release HTTP response before raising status exception (#3364)
  • Fix task cancellation when sendfile() syscall is used by static file handling. (#3383)
  • Fix stack trace for asyncio.TimeoutError which was not logged, when it is caught in the handler. (#3414)

Improved Documentation

  • Improve documentation of Application.make_handler parameters. (#3152)
  • Fix BaseRequest.raw_headers doc. (#3215)
  • Fix typo in TypeError exception reason in web.Application._handle (#3229)
  • Make server access log format placeholder %b documentation reflect behavior and docstring. (#3307)

Deprecations and Removals

  • Deprecate modification of session.requote_redirect_url (#2278)
  • Deprecate stream.unread_data() (#3260)
  • Deprecated use of boolean in resp.enable_compression() (#3318)
  • Encourage creation of aiohttp public objects inside a coroutine (#3331)
  • Drop dead Connection.detach() and Connection.writer. Both methods were broken for more than 2 years. (#3358)
  • Deprecate app.loop, request.loop, client.loop and connector.loop properties. (#3374)
  • Deprecate explicit debug argument. Use asyncio debug mode instead. (#3381)
  • Deprecate body parameter in HTTPException (and derived classes) constructor. (#3385)
  • Deprecate bare connector close, use async with connector: and await connector.close() instead. (#3417)
  • Deprecate obsolete read_timeout and conn_timeout in ClientSession constructor. (#3438)

Misc

  • #3341, #3351