What's Changed

• Restart workers with overlap on SIGHUP for near-zero-downtime reloads by @Kludex in #3025
• Remove colorama from the standard extra by @Kludex in #3027

Full Changelog: 0.50.2...0.51.0

What's Changed

• Split comma-separated Sec-WebSocket-Protocol values in the websockets-sansio implementation by @Aayush7352 in #3019

New Contributors

• @Aayush7352 made their first contribution in #3019

Full Changelog: 0.50.0...0.50.1

What's Changed

• Memoize trusted host checks to avoid re-parsing the client IP per request by @Kludex in #2970
• Cache the asgi scope sub-dict per connection by @Kludex in #2976
• Build a fresh asgi scope dict per request by @Kludex in #2977
• Replace click.style with an internal ANSI style helper by @Kludex in #2981
• Avoid copying single-frame WebSocket payloads in websockets-sansio by @Kludex in #2983
• Deprecate the legacy websockets implementation and default auto to websockets-sansio by @Kludex in #2985
• Exit with a dedicated code on startup failure and stop the supervisor when a worker can't boot by @Kludex in #3001
• Skip the eager app import in the parent when spawning workers by @Kludex in #3012

Full Changelog: 0.49.0...0.50.0

What's Changed

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

Full Changelog: 0.48.0...0.49.0

What's Changed

• Default ssl_ciphers to None and use OpenSSL defaults by @Kludex in #2940
• Ignore duplicate forwarding headers in ProxyHeadersMiddleware by @Kludex in #2944

Full Changelog: 0.47.0...0.48.0

What's Changed

• Eagerly import the ASGI app in the parent process by @Kludex in #2919
• Add ssl_context_factory for custom SSLContext configuration by @Kludex in #2920
• Treat fd=0 as a valid file descriptor with reload/workers by @eltoder in #2927

Full Changelog: 0.46.0...0.47.0

What's Changed

• Support ws_max_size in wsproto implementation by @Kludex in #2915
• Support ws_ping_interval and ws_ping_timeout in wsproto implementation by @Kludex in #2916
• Use bytearray for incoming WebSocket message buffer in websockets-sansio by @Kludex in #2917

Full Changelog: 0.45.0...0.46.0

What's Changed

• Preserve forwarded client ports in proxy headers middleware by @Kludex in #2903
• Accept os.PathLike for log_config by @Kludex in #2905
• Accept log_level strings case-insensitively by @Kludex in #2907
• Raise helpful ImportError when PyYAML is missing for YAML log config by @Kludex in #2906
• Revert empty context for ASGI runs by @Kludex in #2911
• Add --reset-contextvars flag to isolate ASGI request context by @Kludex in #2912
• Revert "Emit http.disconnect on server shutdown for streaming responses" (#2829) by @Kludex in #2913

New Contributors

• @Krishnachaitanyakc made their first contribution in #2870

Full Changelog: 0.44.0...0.45.0

What's Changed

• Implement websocket keepalive pings for websockets-sansio by @Kludex in #2888

Full Changelog: 0.43.0...0.44.0

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)

Full Changelog: 0.42.0...0.43.0