CHANGELOG.md

Change Log

0.29.0 - 2024-03-19

Added

• Cooperative signal handling (#1600) 19/03/24

0.28.1 - 2024-03-19

Fixed

• Revert raise ClientDisconnected on HTTP (#2276) 19/03/24

0.28.0 - 2024-03-09

Added

• Raise ClientDisconnected on send() when client disconnected (#2220) 12/02/24

Fixed

• Except AttributeError on sys.stdin.fileno() for Windows IIS10 (#1947) 29/02/24
• Use X-Forwarded-Proto for WebSockets scheme when the proxy provides it (#2258) 01/03/24

0.27.1 - 2024-02-10

• Fix spurious LocalProtocolError errors when processing pipelined requests (#2243) 10/02/24

0.27.0.post1 - 2024-01-29

Fixed

• Fix nav overrides for newer version of Mkdocs Material (#2233) 26/01/24

0.27.0 - 2024-01-22

Added

• Raise ClientDisconnect(IOError) on send() when client disconnected (#2218) 19/01/24
• Bump ASGI WebSocket spec version to 2.4 (#2221) 20/01/24

0.26.0 - 2024-01-16

Changed

• Update --root-path to include the root path prefix in the full ASGI path as per the ASGI spec (#2213) 16/01/24
• Use __future__.annotations on some internal modules (#2199) 16/01/24

0.25.0 - 2023-12-17

Added

• Support the WebSocket Denial Response ASGI extension (#1916) 17/12/23

Fixed

• Allow explicit hidden file paths on --reload-include (#2176) 08/12/23
• Properly annotate uvicorn.run() (#2158) 22/11/23

0.24.0.post1 - 2023-11-06

Fixed

• Revert mkdocs-material from 9.1.21 to 9.2.6 (#2148) 05/11/23

0.24.0 - 2023-11-04

Added

• Support Python 3.12 (#2145) 04/11/23
• Allow setting app via environment variable UVICORN_APP (#2106) 21/09/23

0.23.2 - 2023-07-31

Fixed

• Maintain the same behavior of websockets from 10.4 on 11.0 (#2061) 30/07/23

0.23.1 - 2023-07-18

Fixed

• Add typing_extensions for Python 3.10 and lower (#2053) 18/07/23

0.23.0 - 2023-07-10

Added

• Add --ws-max-queue parameter WebSockets (#2033) 10/07/23

Removed

• Drop support for Python 3.7 (#1996) 19/06/23
• Remove asgiref as typing dependency (#1999) 08/06/23

Fixed

• Set scope["scheme"] to ws or wss instead of http or https on ProxyHeadersMiddleware for WebSockets (#2043) 12/07/23

Changed

• Raise ImportError on circular import (#2040) 09/07/23
• Use logger.getEffectiveLevel() instead of logger.level to check if log level is TRACE (#1966) 01/06/23

0.22.0 - 2023-04-28

Added

• Add --timeout-graceful-shutdown parameter (#1950) 26/04/23
• Handle SIGBREAK on Windows (#1909) 15/04/23

Fixed

• Shutdown event is now being triggered on Windows when using hot reload (#1584) 13/04/23
• --reload-delay is effectively used on the watchfiles reloader (#1930) 22/04/23

0.21.1 - 2023-03-16

Fixed

• Reset lifespan state on each request (#1903) 16/03/23

0.21.0 - 2023-03-09

Added

• Introduce lifespan state (#1818) 05/03/23
• Allow headers to be sent as iterables on H11 implementation (#1782) 27/11/22
• Improve discoverability when --port=0 is used (#1890) 09/03/23

Changed

• Avoid importing h11 and pyyaml when not needed to improve import time (#1846) 07/02/23
• Replace current native WSGIMiddleware implementation by a2wsgi (#1825) 16/01/23
• Change default --app-dir from "." (dot) to "" (empty string) (#1835) 06/01/23

Fixed

• Send code 1012 on shutdown for WebSockets (#1816) 06/01/23
• Use surrogateescape to encode headers on websockets implementation (#1005) 12/12/22
• Fix warning message on reload failure (#1784) 29/11/22

0.20.0 - 2022-11-20

Added

• Check if handshake is completed before sending frame on wsproto shutdown (#1737)
• Add default headers to WebSockets implementations (#1606 & #1747) 28/10/22
• Warn user when reload and workers flag are used together (#1731) 31/10/22

Fixed

• Use correct WebSocket error codes on close (#1753) 20/11/22
• Send disconnect event on connection lost for wsproto (#996) 29/10/22
• Add SIGQUIT handler to UvicornWorker (#1710) 01/11/22
• Fix crash on exist with "--uds" if socket doesn't exist (#1725) 27/10/22
• Annotate CONFIG_KWARGS in UvicornWorker class (#1746) 31/10/22

Removed

• Remove conditional on RemoteProtocolError.event_hint on wsproto (#1486) 31/10/22
• Remove unused handle_no_connect on wsproto implementation (#1759) 17/11/22

0.19.0 - 2022-10-19

Added

• Support Python 3.11 (#1652) 16/09/22
• Bump minimal httptools version to 0.5.0 (#1645) 13/09/22
• Ignore HTTP/2 upgrade and optionally ignore WebSocket upgrade (#1661) 19/10/22
• Add py.typed to comply with PEP 561 (#1687) 07/10/22

Fixed

• Set propagate to False on "uvicorn" logger (#1288) 08/10/22
• USR1 signal is now handled correctly on UvicornWorker. (#1565) 26/08/22
• Use path with query string on WebSockets logs (#1385) 11/09/22
• Fix behavior on which "Date" headers were not updated on the same connection (#1706) 19/10/22

Removed

• Remove the --debug flag (#1640) 14/09/22
• Remove the DebugMiddleware (#1697) 07/10/22

0.18.3 - 2022-08-24

Fixed

• Remove cyclic references on HTTP implementations. (#1604) 24/08/22

Changed

• reload_delay default changed from None to 0.25 on uvicorn.run() and Config. None is not an acceptable value anymore. (#1545) 02/07/22

0.18.2 - 2022-06-27

Fixed

• Add default log_config on uvicorn.run() (#1541) 24/06/22
• Revert logging file name modification (#1543) 27/06/22

0.18.1 - 2022-06-23

Fixed

• Use DEFAULT_MAX_INCOMPLETE_EVENT_SIZE as default to h11_max_incomplete_event_size on the CLI (#1534) 23/06/22

0.18.0 - 2022-06-23

Added

• The reload flag prioritizes watchfiles instead of the deprecated watchgod (#1437) 18/06/22
• Annotate uvicorn.run() function (#1423) 10/05/22
• Allow configuring max_incomplete_event_size for h11 implementation (#1514) 22/06/22

Removed

• Remove asgiref dependency (#1532) 22/06/22

Fixed

• Turn raw_path into bytes on both websockets implementations (#1487) 16/05/22
• Revert log exception traceback in case of invalid HTTP request (#1518) 14/06/22
• Set asyncio.WindowsSelectorEventLoopPolicy() when using multiple workers to avoid "WinError 87" (#1454) 22/06/22

0.17.6 - 2022-03-11

Changed

• Change httptools range to >=0.4.0 (#1400) 11/03/22

0.17.5 - 2022-02-16

Fixed

• Fix case where url is fragmented in httptools protocol (#1263) 16/02/22
• Fix WSGI middleware not to explode quadratically in the case of a larger body (#1329) 16/02/16

Changed

• Send HTTP 400 response for invalid request (#1352) 2/11/22

0.17.4 - 2022-02-04

Fixed

• Replace create_server by create_unix_server (#1362) 04/02/22

0.17.3 - 2022-02-03

Fixed

• Drop wsproto version checking. (#1359) 03/02/22

0.17.2 - 2022-02-03

Fixed

• Revert #1332. While trying to solve the memory leak, it introduced an issue (#1345) when the server receives big chunks of data using the httptools implementation. (#1354) 03/02/22
• Revert stream interface changes. This was introduced on 0.14.0, and caused an issue (#1226), which caused a memory leak when sending TCP pings. (#1355) 03/02/22
• Fix wsproto version check expression (#1342) 28/01/22

0.17.1 - 2022-01-28

Fixed

• Move all data handling logic to protocol and ensure connection is closed. (#1332) 28/01/22
• Change spec_version field from "2.1" to "2.3", as Uvicorn is compliant with that version of the ASGI specifications. (#1337) 25/01/22

0.17.0.post1 - 2022-01-24

Fixed

• Add the python_requires version specifier (#1328) 17/01/22

0.17.0 - 2022-01-14

Added

• Allow configurable websocket per-message-deflate setting (#1300) 29/12/21
• Support extra_headers for WS accept message (#1293) 06/01/22
• Add missing http version on websockets scope (#1309) 08/01/22

Fixed/Removed

• Drop Python 3.6 support (#1261) 06/01/22
• Fix reload process behavior when exception is raised (#1313) 11/01/22
• Remove root_path from logs (#1294) 25/12/21

0.16.0 - 2021-12-08

Added

• Enable read of uvicorn settings from environment variables (#1279) 06/12/21
• Bump websockets to 10.0. (#1180) 13/09/21
• Ensure non-zero exit code when startup fails (#1278) 06/12/21
• Increase httptools version range from "==0.2.*" to ">=0.2.0,<0.4.0". (#1243) 8/11/21
• Override default asyncio event loop with reload only on Windows (#1257) 24/11/21
• Replace HttpToolsProtocol.pipeline type from list to deque. (#1213) 10/10/21
• Replace WSGIResponder.send_queue type from list to deque. (#1214) 10/10/21

Fixed

• Main process exit after startup failure on reloader classes (#1177) 30/09/21
• Add explicit casting on click options (#1217) 11/10/21
• Allow WebSocket close event to receive reason being None from ASGI app. (#1259) 23/11/21
• Fix a bug in WebSocketProtocol.asgi_receive on which we returned a close frame even if there were data messages before that frame in the read queue. (#1252) 25/11/21
• The option --reload-dirs was splitting a string into single character directories. (#1267) 25/11/21
• Only second SIGINT is able to forcefully shutdown the server (#1269) 28/11/21
• Allow app-dir parameter on the run() function (#1271) 06/12/21

0.15.0 - 2021-08-13

Added

• Change reload to be configurable with glob patterns. Currently only .py files are watched, which is different from the previous default behavior. (#820) 08/08/21
• Add Python 3.10-rc.1 support. Now the server uses asyncio.run which will: start a fresh asyncio event loop, on shutdown cancel any background tasks rather than aborting them, aexit any remaining async generators, and shutdown the default ThreadPoolExecutor. (#1070) 30/07/21
• Exit with status 3 when worker starts failed (#1077) 22/06/21
• Add option to set websocket ping interval and timeout (#1048) 09/06/21
• Adapt bind_socket to make it usable with multiple processes (#1009) 21/06/21
• Add existence check to the reload directory(ies) (#1089) 21/06/21
• Add missing trace log for websocket protocols (#1083) 19/06/21
• Support disabling default Server and Date headers (#818) 11/06/21

Changed

• Add PEP440 compliant version of click (#1099) 29/06/21
• Bump asgiref to 3.4.0 (#1100) 29/06/21

Fixed

• When receiving a SIGTERM supervisors now terminate their processes before joining them (#1069) 30/07/21
• Fix the need of httptools on minimal installation (#1135) 30/07/21
• Fix ping parameters annotation in Config class (#1127) 19/07/21

0.14.0 - 2021-06-01

Added

• Defaults ws max_size on server to 16MB (#995) 5/29/21
• Improve user feedback if no ws library installed (#926 and #1023) 2/27/21
• Support 'reason' field in 'websocket.close' messages (#957) 2/24/21
• Implemented lifespan.shutdown.failed (#755) 2/25/21

Changed

• Upgraded websockets requirements (#1065) 6/1/21
• Switch to asyncio streams API (#869) 5/29/21
• Update httptools from 0.1.* to 0.2.* (#1024) 5/28/21
• Allow Click 8.0, refs #1016 (#1042) 5/23/21
• Add search for a trusted host in ProxyHeadersMiddleware (#591) 3/13/21
• Up wsproto to 1.0.0 (#892) 2/25/21

Fixed

• Force reload_dirs to be a list (#978) 6/1/21
• Fix gunicorn worker not running if extras not installed (#901) 5/28/21
• Fix socket port 0 (#975) 3/5/21
• Prevent garbage collection of main lifespan task (#972) 3/4/21

0.13.4 - 2021-02-20

Fixed

• Fixed wsgi middleware PATH_INFO encoding (#962) 2/20/21
• Fixed uvloop dependency (#952) 2/10/21 then (#959) 2/20/21
• Relax watchgod up bound (#946) 1/31/21
• Return 'connection: close' header in response (#721) 1/25/21

Added:

• Docs: Nginx + websockets (#948) 2/10/21
• Document the default value of 1 for workers (#940) (#943) 1/25/21
• Enabled permessage-deflate extension in websockets (#764) 1/1/21

0.13.3 - 2020-12-29

Fixed

• Prevent swallowing of return codes from subprocess when running with Gunicorn by properly resetting signals. (Pull #895)
• Tweak detection of app factories to be more robust. A warning is now logged when passing a factory without the --factory flag. (Pull #914)
• Properly clean tasks when handshake is aborted when running with --ws websockets. (Pull #921)

0.13.2 - 2020-12-12

Fixed

• Log full exception traceback in case of invalid HTTP request. (Pull #886 and #888)

0.13.1 - 2020-12-12

Fixed

• Prevent exceptions when the ASGI application rejects a connection during the WebSocket handshake, when running on both --ws wsproto or --ws websockets. (Pull #704 and #881)
• Ensure connection scope doesn't leak in logs when using JSON log formatters. (Pull #859 and #884)

0.13.0 - 2020-12-08

Added

• Add --factory flag to support factory-style application imports. (#875) 2020-12-07 50fc0d1c
• Skip installation of signal handlers when not in the main thread. Allows using Server in multithreaded contexts without having to override .install_signal_handlers(). (#871) 2020-12-07 ce2ef45a

0.12.3 - 2020-11-21

Fixed

• Fix race condition that leads Quart to hang with uvicorn (#848) 11/18/20 de213614
• Use latin1 when decoding X-Forwarded-* headers (#701) 11/12/20 45e6e831
• Rework IPv6 support (#837) 11/8/20 bdab488e
• Cancel old keepalive-trigger before setting new one. (#832) 10/26/20 d5dcf80c

0.12.2 - 2020-10-19

Added

• Adding ability to decrypt ssl key file (#808) 10/12/20 90dbb6e0
• Support .yml log config files (#799) 10/6/20 b468950e
• Added python 3.9 support (#804) 10/6/20 08fd0559

Fixed

• Fixes watchgod with common prefixes (#817) 10/14/20 1b32f997
• Fix reload with ipv6 host (#803) 10/14/20 5acaee5b
• Added cli support for headers containing colon (#813) 10/12/20 68732899
• Sharing socket across workers on windows (#802) 10/12/20 103167a0
• Note the need to configure trusted "ips" when using unix sockets (#796) 10/4/20 a504c569

0.12.1 - 2020-09-30

Changed

• Pinning h11 and python-dotenv to min versions (#789) 9/29/20 bbf19c66
• Get docs/index.md in sync with README.md (#784) 9/29/20 70ebcfdf

Fixed

• Improve changelog by pointing out breaking changes (#792) 9/29/20 e2b75064

0.12.0 - 2020-09-28

Added

• Make reload delay configurable (#774) 9/28/20 98010027
• Upgrade maximum h11 dependency version to 0.10 (#772) 8/28/20 54d729cc
• Allow .json or .yaml --log-config files (#665) 8/18/20 093a1f7c
• Add ASGI dict to the lifespan scope (#754) 8/15/20 8150c3eb
• Upgrade wsproto to 0.15.0 (#750) 8/13/20 fbce393f
• Use optional package installs (#666) 8/10/20 5fa99a11

Changed

• Dont set log level for root logger (#767) 8/28/20 df81b168
• Uvicorn no longer ships extra dependencies uvloop, websockets and httptools as default. To install these dependencies use uvicorn[standard].

Fixed

• Revert "Improve shutdown robustness when using --reload or multiprocessing (#620)" (#756) 8/28/20 ff4af12d
• Fix terminate error in windows (#744) 8/27/20 dd3b842d
• Fix bug where --log-config disables uvicorn loggers (#512) 8/11/20 a9c37cc4

0.11.8 - 2020-07-30

• Fix a regression that caused Uvicorn to crash when using --interface=wsgi. (Pull #730)
• Fix a regression that caused Uvicorn to crash when using unix domain sockets. (Pull #729)

0.11.7 - 2020-28-07

• SECURITY FIX: Prevent sending invalid HTTP header names and values. (Pull #725)
• SECURITY FIX: Ensure path value is escaped before logging to the console. (Pull #724)
• Fix --proxy-headers client IP and host when using a Unix socket. (Pull #636)

0.11.6

• Fix overriding the root logger.

0.11.5

• Revert "Watch all files, not just .py" due to unexpected side effects.
• Revert "Pass through gunicorn timeout config." due to unexpected side effects.

0.11.4

• Use watchgod, if installed, for watching code changes.
• Watch all files, not just .py.
• Pass through gunicorn timeout config.

0.11.3

• Update dependencies.

0.11.2

• Don't open socket until after application startup.
• Support --backlog.

0.11.1

• Use a more liberal h11 dependency. Either 0.8.* or `0.9.*``.

0.11.0

• Fix reload/multiprocessing on Windows with Python 3.8.
• Drop IOCP support. (Required for fix above.)
• Add uvicorn --version flag.
• Add --use-colors and --no-use-colors flags.
• Display port correctly, when auto port selection isused with --port=0.

0.10.8

• Fix reload/multiprocessing error.

0.10.7

• Use resource_sharer.DupSocket to resolve socket sharing on Windows.

0.10.6

• Exit if workers or reload are use without an app import string style.
• Reorganise supervisor processes to properly hand over sockets on windows.

0.10.5

• Update uvloop dependency to 0.14+

0.10.4

• Error clearly when workers=<NUM> is used with app instance, instead of an app import string.
• Switch --reload-dir to current working directory by default.

0.10.3

• Add ``--log-level trace`

0.10.2

• Enable --proxy-headers by default.

0.10.1

• Resolve issues with logging when using --reload or --workers.
• Setup up root logger to capture output for all logger instances, not just uvicorn.error and uvicorn.access.

0.10.0

• Support for Python 3.8
• Separated out uvicorn.error and uvicorn.access logs.
• Coloured log output when connected to a terminal.
• Dropped logger= config setting.
• Added --log-config [FILE] and log_config=[str|dict]. May either be a Python logging config dictionary or the file name of a logging configuration.
• Added --forwarded_allow_ips and forwarded_allow_ips. Defaults to the value of the $FORWARDED_ALLOW_IPS environment variable or "127.0.0.1". The --proxy-headers flag now defaults to True, but only trusted IPs are used to populate forwarding info.
• The --workers setting now defaults to the value of the $WEB_CONCURRENCY environment variable.
• Added support for --env-file. Requires python-dotenv.