Eventlet was deprecated for 26.0 and is now removed:
- Delete gunicorn/workers/geventlet.py and its registry entry
- Drop eventlet from config help text, HTTP/2 unsupported-worker
messages, and the dirty client docstring
- Drop the eventlet optional-dependency, the eventlet entry in the
testing extra, and the eventlet-only filterwarnings ignore
- Drop the EventletWorkerAlpn test class
- Drop the freebsd CI ignore for the (now non-existent) test_geventlet.py
- Drop eventlet from the issue-triage discussion template
- Drop eventlet from README, install/design/http2/settings/news docs;
rewrite the news.md entry from 'deprecated' to 'removed in this release'
Add h2 and uvloop to requirements_test.txt so a plain
'pip install -r requirements_test.txt' run reaches feature parity with
'pip install .[testing]' for those two deps. The container suite
previously skipped 87 HTTP/2 tests for missing h2 and 1 for uvloop;
the in-process suite skips drop from 67 to 40.
- Add guides/gunicornc.md with usage examples and command reference
- Update mkdocs.yml navigation to include Control Interface guide
- Update 2026-news.md and news.md changelog with 25.2.0 release
- Regenerate reference/settings.md with control socket settings
- Fix mobile side menu not displaying on iPad by keeping site_nav
content but hiding sidebar on desktop via CSS
- Fix broken links in asgi.md and guides/http2.md
- Add HTTP/2 guide to navigation
- Add explicit do_handshake() in base_async.py before ALPN check
when do_handshake_on_connect is False
- Mark eventlet worker as deprecated (removal in 26.0)
- Add HTTP/2 gevent example with Docker and tests
- Update documentation to reflect eventlet deprecation
- Remove eventlet websocket example (gevent version exists)
The ALPN fix ensures HTTP/2 works correctly with gevent and eventlet
workers when do_handshake_on_connect config is False (the default).
Without explicit handshake, selected_alpn_protocol() returns None.
- Add three tuning profiles: Conservative, Balanced, High Concurrency
- Document pros/cons and trade-offs for each HTTP/2 setting
- Add Linux kernel tuning parameters for high concurrency
- Add Docker-specific tuning recommendations
- Include benchmark results from h2load testing
Add complete HTTP/2 example in examples/http2_features/:
- ASGI app showing priority access and trailer sending
- Test script using raw h2 library for HTTP/2 testing
- Docker setup for easy testing
- Documentation update referencing the example
The example demonstrates:
- Reading http.response.priority extension in ASGI scope
- Sending http.response.trailers messages
- Multiple streams on the same connection
- Guard early_hints callback against calls after response started
- Fix :authority precedence over Host header per RFC 9113 section 8.3.1
- Add nginx early_hints documentation link
- Use standard port 443 in curl examples
- Add docs/content/guides/http2.md with comprehensive HTTP/2 guide
- Quick start and requirements
- Configuration options and settings
- Worker compatibility matrix
- HTTP 103 Early Hints usage for WSGI and ASGI
- Production deployment with nginx
- Troubleshooting guide
- Update docs/content/asgi.md to reflect HTTP/2 support
- Update docs/content/2026-news.md with 25.0.0 release featuring
HTTP/2 and Early Hints
- Regenerate docs/content/reference/settings.md with HTTP/2 settings
- Add docker/Dockerfile with non-root user and configurable environment
- Add GitHub Actions workflow to build multi-platform images (amd64/arm64)
- Publish to ghcr.io/benoitc/gunicorn on version tags
- Update documentation with official image usage examples
