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Gunicorn. A web server that runs Python websites reliably and efficiently.

Problem

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Audience

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Market

The full read on this project is a sign-in away — what it solves, who it serves, and where it sits in the market.

Pricing

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Updates

June 2026

Merge pull request #3651 from benoitc/fix/control-socket-reload-leak-… Jun 15
test: make reload leak test robust to pypy non-refcounting GC Jun 15
test: fix pre-existing pylint unused-variable in test_http.py Jun 15
fix: stop control socket leaking fds and threads on SIGHUP reload (#3… Jun 15

May 2026

fix: drop body framing on HEAD/1xx/204/304 in WSGI responses May 5
Release —26.0.0 May 5
release: 26.0.0 May 5
Merge pull request #3611 from zc-mattcen/docs-typo May 4
Merge pull request #3623 from benoitc/chore/drop-eventlet-add-h2-uvlo… May 4
Merge pull request #3622 from benoitc/test/docker-port-and-ipv4-fixes May 4
chore: remove eventlet worker; add h2 and uvloop to test deps May 4
test: pass action name to dirty client and stabilize after TTOU spam May 4
test: unblock docker fixtures on macOS hosts May 4
Merge pull request #3621 from benoitc/fix/asgi-preserve-content-lengt… May 3
Merge pull request #3620 from benoitc/fix/asgi-proxy-protocol-trust-a… May 3
fix: keep Content-Length on HEAD and 304 responses May 3
fix: enforce proxy_allow_ips and tighten PROXY parsing in ASGI May 3
Merge pull request #3619 from benoitc/test/asgi-pipelined-smuggling-f… May 3
test: parametrize smuggling regression across python and fast parsers May 3
Merge pull request #3618 from benoitc/test/asgi-pipelined-smuggling-r… May 3
fix: keep _body_receiver alive across the keepalive smuggling gate May 3

March 2026

Release —Gunicorn 25.3.0 Mar 26
Release —Gunicorn 25.2.0 Mar 24

February 2026

Release —Gunicorn 25.1.0 Feb 13
Release —25.0.2 Feb 7
Release —25.0.3 Feb 7
Release —25.0.1 Feb 2
Release —Gunicorn 25.0.0 Feb 1

January 2026

Release —24.1.1 Jan 24
Release —Gunicorn 24.1.0 Jan 23