Release notes

0.52.4 (August 18, 2026)¶

Fixed¶

• Remove duplicate Date headers from accepted WebSocket handshakes with websockets-sansio (#3078)

0.52.3 (August 13, 2026)¶

Changed¶

• Update zttp to 0.0.24 and use its combined receive path, improving HTTP/1.1 request parsing performance (#3067)

0.52.2 (August 13, 2026)¶

Fixed¶

• Update zttp to 0.0.22, fixing bodyless request receives and improving HTTP/1 request parsing performance (#3063)

0.52.1 (August 1, 2026)¶

Fixed¶

• Complete the closing handshake on server-initiated WebSocket closes in the websockets-sansio and wsproto implementations, waiting for the client's close reply with a 10 second timeout instead of resetting the connection (#3053)
• Add missing write flow control to the websockets-sansio implementation, preventing data truncation on server-initiated closes with large in-flight payloads (#3048)
• Handle connection loss while a WebSocket write is waiting on backpressure (#3050)
• Remove duplicate Content-Type and Content-Length headers from WebSocket denial responses on the websockets-sansio implementation, and deliver non-UTF-8 denial bodies intact (#3041)

0.52.0 (July 29, 2026)¶

This release adds an experimental HTTP/1.1 implementation backed by zttp, a sans-IO HTTP parser I've been developing on the side: a core written in Zig, with bindings to Python. It has been running under a fuzzer for some weeks now, and has been through multiple rounds of security auditing.

It is still experimental, so don't put it in front of production traffic yet. Try it with --http zttp, and please send any feedback to the issue tracker.

Added¶

• Add an experimental zttp HTTP/1.1 implementation, selectable with --http zttp (#2979)

Fixed¶

• Keep non-ASCII WebSocket request headers intact with websockets 17.0, which encodes them with ISO-8859-1 (#3036)

0.51.0 (July 8, 2026)¶

Added¶

• Restart workers one at a time on SIGHUP, bringing each replacement up before retiring the old worker, so reloads no longer drop requests (#3025)

Removed¶

• Remove colorama from the standard extra (#3027)

0.50.2 (July 6, 2026)¶

Fixed¶

• Require websockets>=13.0, which the default websockets-sansio implementation needs (#3021)

0.50.1 (July 6, 2026)¶

Fixed¶

• Split comma-separated Sec-WebSocket-Protocol values in the websockets-sansio implementation (#3019)

0.50.0 (July 4, 2026)¶

If you use WebSockets, note that --ws auto now picks the websockets-sansio implementation. You shouldn't need it, but you can pin --ws websockets to get the deprecated legacy one back.

Changed¶

• Exit with the dedicated code 3 on any startup failure: app loading, socket bind and lifespan startup errors previously exited with a mix of 0, 1 and 3 (#3001)
• Stop the multiprocess supervisor when a worker exits with code 3 instead of restarting it forever (#3001)
• Default --ws auto to websockets-sansio when websockets is installed (#2985)
• Skip the eager app import in the parent process with --reload or --workers, fixing a memory regression introduced in 0.47.0 (#3012)
• Build a fresh asgi scope dict per request (#2977)
• Cache the asgi scope sub-dict per connection (#2976)
• Avoid copying single-frame WebSocket payloads in websockets-sansio (#2983)
• Memoize trusted host checks in ProxyHeadersMiddleware (#2970)
• Replace click.style with an internal ANSI style helper (#2981)

Deprecated¶

• Deprecate the legacy websockets implementation; use websockets-sansio or wsproto instead (#2985)

0.49.0 (June 3, 2026)¶

Changed¶

• Bump httptools minimum version to 0.8.0 (#2962)
• Consume duplicate forwarding headers in ProxyHeadersMiddleware (reverses the 0.48.0 behavior of ignoring them) (#2971)

0.48.0 (May 24, 2026)¶

Changed¶

• Default ssl_ciphers to None and use OpenSSL defaults (#2940)

Fixed¶

• Ignore duplicate forwarding headers in ProxyHeadersMiddleware (#2944)

0.47.0 (May 14, 2026)¶

Added¶

• Add ssl_context_factory for custom SSLContext configuration (#2920)

Changed¶

• Eagerly import the ASGI app in the parent process (#2919)

Fixed¶

• Treat fd=0 as a valid file descriptor with reload/workers (#2927)

0.46.0 (April 23, 2026)¶

Added¶

• Support ws_max_size in wsproto implementation (#2915)
• Support ws_ping_interval and ws_ping_timeout in wsproto implementation (#2916)

Changed¶

• Use bytearray for incoming WebSocket message buffer in websockets-sansio (#2917)

0.45.0 (April 21, 2026)¶

Added¶

• Add --reset-contextvars flag to isolate ASGI request context (#2912)
• Accept os.PathLike for log_config (#2905)
• Accept log_level strings case-insensitively (#2907)

Changed¶

• Revert "Emit http.disconnect on server shutdown for streaming responses" (#2913)
• Revert "Explicitly start ASGI run with empty context" (#2911)

Fixed¶

• Preserve forwarded client ports in proxy headers middleware (#2903)
• Raise helpful ImportError when PyYAML is missing for YAML log config (#2906)

0.44.0 (April 6, 2026)¶

Added¶

• Implement websocket keepalive pings for websockets-sansio (#2888)

0.43.0 (April 3, 2026)¶

You can quit Uvicorn now. We heard you, @pamelafox - all 47 of your Ctrl+C's (thanks for flagging it, and thanks to @tiangolo for the fix 🙏). See the tweet.

Changed¶

• Emit http.disconnect ASGI receive() event on server shutting down for streaming responses (#2829)
• Use native context parameter for create_task on Python 3.11+ (#2859)
• Drop cast in ASGI types (#2875)

0.42.0 (March 16, 2026)¶

Changed¶

• Use bytearray for request body accumulation to avoid O(n^2) allocation on fragmented bodies (#2845)

Fixed¶

• Escape brackets and backslash in httptools HEADER_RE regex (#2824)
• Fix multiple issues in websockets sans-io implementation (#2825)

0.41.0 (February 16, 2026)¶

Added¶

• Add --limit-max-requests-jitter to stagger worker restarts (#2707)
• Add socket path to scope["server"] (#2561)

Changed¶

• Rename LifespanOn.error_occured to error_occurred (#2776)

Fixed¶

• Ignore permission denied errors in watchfiles reloader (#2817)
• Ensure lifespan shutdown runs when should_exit is set during startup (#2812)
• Reduce the log level of 'request limit exceeded' messages (#2788)

0.40.0 (December 21, 2025)¶

Remove¶

• Drop support for Python 3.9 (#2772)

0.39.0 (December 21, 2025)¶

Fixed¶

• Send close frame on ASGI return for WebSockets (#2769)
• Explicitly start ASGI run with empty context (#2742)

0.38.0 (October 18, 2025)¶

Added¶

• Support Python 3.14 (#2723)

0.37.0 (September 23, 2025)¶

Added¶

• Add --timeout-worker-healthcheck option (#2711)
• Add os.PathLike[str] type to ssl_ca_certs (#2676)

0.36.1 (September 23, 2025)¶

Fixed¶

• Raise an exception when calling removed Config.setup_event_loop() (#2709)

0.36.0 (September 20, 2025)¶

Added¶

• Support custom IOLOOPs (#2435)
• Allow to provide importable string in --http, --ws and --loop (#2658)

0.35.0 (June 28, 2025)¶

Added¶

• Add WebSocketsSansIOProtocol (#2540)

Changed¶

• Refine help message for option --proxy-headers (#2653)

0.34.3 (June 1, 2025)¶

Fixed¶

• Don't include cwd() when non-empty --reload-dirs is passed (#2598)
• Apply get_client_addr formatting to WebSocket logging (#2636)

0.34.2 (April 19, 2025)¶

Fixed¶

• Flush stdout buffer on Windows to trigger reload (#2604)

0.34.1 (April 13, 2025)¶

Deprecated¶

• Deprecate ServerState in the main module (#2581)

0.34.0 (December 15, 2024)¶

Added¶

• Add content-length to 500 response in wsproto implementation (#2542)

Removed¶

• Drop support for Python 3.8 (#2543)

0.33.0 (December 14, 2024)¶

Removed¶

• Remove WatchGod support for --reload (#2536)

0.32.1 (November 20, 2024)¶

Fixed¶

• Drop ASGI spec version to 2.3 on HTTP scope (#2513)
• Enable httptools lenient data on httptools >= 0.6.3 (#2488)

0.32.0 (October 15, 2024)¶

Added¶

• Officially support Python 3.13 (#2482)
• Warn when max_request_limit is exceeded (#2430)

0.31.1 (October 9, 2024)¶

Fixed¶

• Support WebSockets 0.13.1 (#2471)
• Restore support for [*] in trusted hosts (#2480)
• Add PathLike[str] type hint for ssl_keyfile (#2481)

0.31.0 (September 27, 2024)¶

Added¶

Improve ProxyHeadersMiddleware (#2468) and (#2231):

• Fix the host for requests from clients running on the proxy server itself.
• Fallback to host that was already set for empty x-forwarded-for headers.
• Also allow to specify IP Networks as trusted hosts. This greatly simplifies deployments on docker swarm/kubernetes, where the reverse proxy might have a dynamic IP.
  • This includes support for IPv6 Address/Networks.

0.30.6 (August 13, 2024)¶

Fixed¶

• Don't warn when upgrade is not WebSocket and dependencies are installed (#2360)

0.30.5 (August 2, 2024)¶

Fixed¶

• Don't close connection before receiving body on H11 (#2408)

0.30.4 (July 31, 2024)¶

Fixed¶

• Close connection when h11 sets client state to MUST_CLOSE (#2375)

0.30.3 (July 20, 2024)¶

Fixed¶

• Suppress KeyboardInterrupt from CLI and programmatic usage (#2384)
• ClientDisconnect inherits from OSError instead of IOError (#2393)

0.30.2 (July 20, 2024)¶

Added¶

• Add reason support to websocket.disconnect event (#2324)

Fixed¶

• Iterate subprocesses in-place on the process manager (#2373)

0.30.1 (June 2, 2024)¶

Fixed¶

• Allow horizontal tabs \t in response header values (#2345)

0.30.0 (May 28, 2024)¶

Added¶

• New multiprocess manager (#2183)
• Allow ConfigParser or a io.IO[Any] on log_config (#1976)

Fixed¶

• Suppress side-effects of signal propagation (#2317)
• Send content-length header on 5xx (#2304)

Deprecated¶

• Deprecate the uvicorn.workers module (#2302)

0.29.0 (March 19, 2024)¶

Added¶

• Cooperative signal handling (#1600)

0.28.1 (March 19, 2024)¶

Fixed¶

• Revert raise ClientDisconnected on HTTP (#2276)

0.28.0 (March 9, 2024)¶

Added¶

• Raise ClientDisconnected on send() when client disconnected (#2220)

Fixed¶

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

0.27.1 (February 10, 2024)¶

• Fix spurious LocalProtocolError errors when processing pipelined requests (#2243)

0.27.0.post1 (January 29, 2024)¶

Fixed¶

• Fix nav overrides for newer version of Mkdocs Material (#2233)

0.27.0 (January 22, 2024)¶

Added¶

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

0.26.0 (January 16, 2024)¶

Changed¶

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

0.25.0 (December 17, 2023)¶

Added¶

• Support the WebSocket Denial Response ASGI extension (#1916)

Fixed¶

• Allow explicit hidden file paths on --reload-include (#2176)
• Properly annotate uvicorn.run() (#2158)

0.24.0.post1 (November 6, 2023)¶

Fixed¶

• Revert mkdocs-material from 9.1.21 to 9.2.6 (#2148)

0.24.0 (November 4, 2023)¶

Added¶

• Support Python 3.12 (#2145)
• Allow setting app via environment variable UVICORN_APP (#2106)

0.23.2 (July 31, 2023)¶

Fixed¶

• Maintain the same behavior of websockets from 10.4 on 11.0 (#2061)

0.23.1 (July 18, 2023)¶

Fixed¶

• Add typing_extensions for Python 3.10 and lower (#2053)

0.23.0 (July 10, 2023)¶

Added¶

• Add --ws-max-queue parameter WebSockets (#2033)

Removed¶

• Drop support for Python 3.7 (#1996)
• Remove asgiref as typing dependency (#1999)

Fixed¶

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

Changed¶

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

0.22.0 (April 28, 2023)¶

Added¶

• Add --timeout-graceful-shutdown parameter (#1950)
• Handle SIGBREAK on Windows (#1909)

Fixed¶

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

0.21.1 (March 16, 2023)¶

Fixed¶

• Reset lifespan state on each request (#1903)

0.21.0 (March 9, 2023)¶

Added¶

• Introduce lifespan state (#1818)
• Allow headers to be sent as iterables on H11 implementation (#1782)
• Improve discoverability when --port=0 is used (#1890)

Changed¶

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

Fixed¶

• Send code 1012 on shutdown for WebSockets (#1816)
• Use surrogateescape to encode headers on websockets implementation (#1005)
• Fix warning message on reload failure (#1784)

0.20.0 (November 20, 2022)¶

Added¶

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

Fixed¶

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

Removed¶

• Remove conditional on RemoteProtocolError.event_hint on wsproto (#1486)
• Remove unused handle_no_connect on wsproto implementation (#1759)

0.19.0 (October 19, 2022)¶

Added¶

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

Fixed¶

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

Removed¶

• Remove the --debug flag (#1640)
• Remove the DebugMiddleware (#1697)

0.18.3 (August 24, 2022)¶

Fixed¶

• Remove cyclic references on HTTP implementations. (#1604)

Changed¶

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

0.18.2 (June 27, 2022)¶

Fixed¶

• Add default log_config on uvicorn.run() (#1541)
• Revert logging file name modification (#1543)

0.18.1 (June 23, 2022)¶

Fixed¶

• Use DEFAULT_MAX_INCOMPLETE_EVENT_SIZE as default to h11_max_incomplete_event_size on the CLI (#1534)

0.18.0 (June 23, 2022)¶

Added¶

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

Removed¶

• Remove asgiref dependency (#1532)

Fixed¶

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

0.17.6 (March 11, 2022)¶

Changed¶

• Change httptools range to >=0.4.0 (#1400)

0.17.5 (February 16, 2022)¶

Fixed¶

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

Changed¶

• Send HTTP 400 response for invalid request (#1352)

0.17.4 (February 4, 2022)¶

Fixed¶

• Replace create_server by create_unix_server (#1362)

0.17.3 (February 3, 2022)¶

Fixed¶

• Drop wsproto version checking. (#1359)

0.17.2 (February 3, 2022)¶

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)
• 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)
• Fix wsproto version check expression (#1342)

0.17.1 (January 28, 2022)¶

Fixed¶

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

0.17.0.post1 (January 24, 2022)¶

Fixed¶

• Add the python_requires version specifier (#1328)

0.17.0 (January 14, 2022)¶

Added¶

• Allow configurable websocket per-message-deflate setting (#1300)
• Support extra_headers for WS accept message (#1293)
• Add missing http version on websockets scope (#1309)

Fixed/Removed¶

• Drop Python 3.6 support (#1261)
• Fix reload process behavior when exception is raised (#1313)
• Remove root_path from logs (#1294)

0.16.0 (December 8, 2021)¶

Added¶

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

Fixed¶

• Main process exit after startup failure on reloader classes (#1177)
• Fix the need of httptools on minimal installation (#1135)
• Fix ping parameters annotation in Config class (#1127)

0.15.0 (August 13, 2021)¶

Added¶

• Change reload to be configurable with glob patterns. Currently only .py files are watched, which is different from the previous default behavior. (#820)
• 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)
• Exit with status 3 when worker starts failed (#1077)
• Add option to set websocket ping interval and timeout (#1048)
• Adapt bind_socket to make it usable with multiple processes (#1009)
• Add existence check to the reload directory(ies) (#1089)
• Add missing trace log for websocket protocols (#1083)
• Support disabling default Server and Date headers (#818)

Changed¶

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

Fixed¶

• When receiving a SIGTERM supervisors now terminate their processes before joining them (#1069)
• Fix httptools range to >=0.4.0 (#1400)

0.14.0 (June 1, 2021)¶

Added¶

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

Changed¶

• Upgraded websockets requirements (#1065)
• Switch to asyncio streams API (#869)
• Update httptools from 0.1.* to 0.2.* (#1024)
• Allow Click 8.0, refs #1016 (#1042)
• Add search for a trusted host in ProxyHeadersMiddleware (#591)
• Up wsproto to 1.0.0 (#892)

Fixed¶

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

0.13.4 (February 20, 2021)¶

Fixed¶

• Fixed wsgi middleware PATH_INFO encoding (#962)
• Fixed uvloop dependency (#952) then (#959)
• Relax watchgod up bound (#946)
• Return 'connection: close' header in response (#721)

Added¶

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

0.13.3 (December 29, 2020)¶

Fixed¶

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

0.13.2 (December 12, 2020)¶

Fixed¶

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

0.13.1 (December 12, 2020)¶

Fixed¶

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

0.13.0 (December 8, 2020)¶

Added¶

• Add --factory flag to support factory-style application imports. (#875)
• 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)

0.12.3 (November 21, 2020)¶

Fixed¶

• Fix race condition that leads Quart to hang with uvicorn (#848)
• Use latin1 when decoding X-Forwarded-* headers (#701)
• Rework IPv6 support (#837)
• Cancel old keepalive-trigger before setting new one. (#832)

0.12.2 (October 19, 2020)¶

Added¶

• Adding ability to decrypt ssl key file (#808)
• Support .yml log config files (#799)
• Added python 3.9 support (#804)

Fixed¶

• Fixes watchgod with common prefixes (#817)
• Fix reload with ipv6 host (#803)
• Added cli support for headers containing colon (#813)
• Sharing socket across workers on windows (#802)
• Note the need to configure trusted "ips" when using unix sockets (#796)

0.12.1 (September 30, 2020)¶

Changed¶

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

Fixed¶

• Improve changelog by pointing out breaking changes (#792)

0.12.0 (September 28, 2020)¶

Added¶

• Make reload delay configurable (#774)
• Upgrade maximum h11 dependency version to 0.10 (#772)
• Allow .json or .yaml --log-config files (#665)
• Add ASGI dict to the lifespan scope (#754)
• Upgrade wsproto to 0.15.0 (#750)
• Use optional package installs (#666)

Changed¶

• Don't 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)
• Fix terminate error in windows (#744)
• Fix bug where --log-config disables uvicorn loggers (#512)

0.11.8 (July 30, 2020)¶

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

0.11.7 (July 28, 2020)¶

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

0.11.6 (July 17, 2020)¶

• Fix overriding the root logger.

0.11.5 (April 29, 2020)¶

• 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 (April 28, 2020)¶

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

0.11.3 (February 17, 2020)¶

• Update dependencies.

0.11.2 (January 20, 2020)¶

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

0.11.1 (December 20, 2019)¶

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

0.11.0 (December 20, 2019)¶

• 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 (November 12, 2019)¶

• Fix reload/multiprocessing error.

0.10.7 (November 12, 2019)¶

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

0.10.6 (November 12, 2019)¶

• 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 (November 12, 2019)¶

• Update uvloop dependency to 0.14+

0.10.4 (November 9, 2019)¶

• 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 (November 1, 2019)¶

• Add `--log-level trace

0.10.2 (October 31, 2019)¶

• Enable --proxy-headers by default.

0.10.1 (October 31, 2019)¶

• 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 (October 29, 2019)¶

• 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.