koa

Name: koa
Author: koa

Frameworks & LibrariesMIT

koa release notes.

Latest v3.2.1 · May 21, 2026by koaWritten in JavaScriptWebsite koajs/koa RSS

Branches

3: v3.2.1May 21, 2026
2: v2.16.4Feb 25, 2026

Release activity

Release activity — 9 releases across 7 days in the last year. Each cell is one day; darker means more releases that day. Older weeks are hidden at this screen width.
	Sep				Oct				Nov					Dec				Jan				Feb				Mar					Apr				May					Jun				Jul				Aug					Sep
Sunday	No releases on Sep 7, 2025	No releases on Sep 14, 2025	No releases on Sep 21, 2025	No releases on Sep 28, 2025	No releases on Oct 5, 2025	No releases on Oct 12, 2025	No releases on Oct 19, 2025	1 release on Oct 26, 2025	No releases on Nov 2, 2025	No releases on Nov 9, 2025	No releases on Nov 16, 2025	No releases on Nov 23, 2025	No releases on Nov 30, 2025	No releases on Dec 7, 2025	No releases on Dec 14, 2025	No releases on Dec 21, 2025	No releases on Dec 28, 2025	No releases on Jan 4, 2026	No releases on Jan 11, 2026	No releases on Jan 18, 2026	No releases on Jan 25, 2026	No releases on Feb 1, 2026	No releases on Feb 8, 2026	No releases on Feb 15, 2026	No releases on Feb 22, 2026	No releases on Mar 1, 2026	No releases on Mar 8, 2026	No releases on Mar 15, 2026	No releases on Mar 22, 2026	No releases on Mar 29, 2026	No releases on Apr 5, 2026	No releases on Apr 12, 2026	No releases on Apr 19, 2026	No releases on Apr 26, 2026	No releases on May 3, 2026	No releases on May 10, 2026	No releases on May 17, 2026	No releases on May 24, 2026	No releases on May 31, 2026	No releases on Jun 7, 2026	No releases on Jun 14, 2026	No releases on Jun 21, 2026	No releases on Jun 28, 2026	No releases on Jul 5, 2026	No releases on Jul 12, 2026	No releases on Jul 19, 2026	No releases on Jul 26, 2026	No releases on Aug 2, 2026	No releases on Aug 9, 2026	No releases on Aug 16, 2026	No releases on Aug 23, 2026	No releases on Aug 30, 2026	No releases on Sep 6, 2026
Monday	No releases on Sep 8, 2025	No releases on Sep 15, 2025	No releases on Sep 22, 2025	No releases on Sep 29, 2025	No releases on Oct 6, 2025	No releases on Oct 13, 2025	No releases on Oct 20, 2025	1 release on Oct 27, 2025	No releases on Nov 3, 2025	No releases on Nov 10, 2025	No releases on Nov 17, 2025	No releases on Nov 24, 2025	No releases on Dec 1, 2025	No releases on Dec 8, 2025	No releases on Dec 15, 2025	No releases on Dec 22, 2025	No releases on Dec 29, 2025	No releases on Jan 5, 2026	No releases on Jan 12, 2026	No releases on Jan 19, 2026	No releases on Jan 26, 2026	No releases on Feb 2, 2026	No releases on Feb 9, 2026	No releases on Feb 16, 2026	No releases on Feb 23, 2026	No releases on Mar 2, 2026	No releases on Mar 9, 2026	No releases on Mar 16, 2026	No releases on Mar 23, 2026	No releases on Mar 30, 2026	No releases on Apr 6, 2026	No releases on Apr 13, 2026	No releases on Apr 20, 2026	No releases on Apr 27, 2026	No releases on May 4, 2026	No releases on May 11, 2026	No releases on May 18, 2026	No releases on May 25, 2026	No releases on Jun 1, 2026	No releases on Jun 8, 2026	No releases on Jun 15, 2026	No releases on Jun 22, 2026	No releases on Jun 29, 2026	No releases on Jul 6, 2026	No releases on Jul 13, 2026	No releases on Jul 20, 2026	No releases on Jul 27, 2026	No releases on Aug 3, 2026	No releases on Aug 10, 2026	No releases on Aug 17, 2026	No releases on Aug 24, 2026	No releases on Aug 31, 2026	No releases on Sep 7, 2026
Tuesday	No releases on Sep 9, 2025	No releases on Sep 16, 2025	No releases on Sep 23, 2025	No releases on Sep 30, 2025	No releases on Oct 7, 2025	No releases on Oct 14, 2025	No releases on Oct 21, 2025	No releases on Oct 28, 2025	No releases on Nov 4, 2025	No releases on Nov 11, 2025	No releases on Nov 18, 2025	No releases on Nov 25, 2025	No releases on Dec 2, 2025	No releases on Dec 9, 2025	No releases on Dec 16, 2025	No releases on Dec 23, 2025	No releases on Dec 30, 2025	No releases on Jan 6, 2026	No releases on Jan 13, 2026	No releases on Jan 20, 2026	No releases on Jan 27, 2026	No releases on Feb 3, 2026	No releases on Feb 10, 2026	No releases on Feb 17, 2026	No releases on Feb 24, 2026	No releases on Mar 3, 2026	No releases on Mar 10, 2026	No releases on Mar 17, 2026	No releases on Mar 24, 2026	No releases on Mar 31, 2026	No releases on Apr 7, 2026	No releases on Apr 14, 2026	No releases on Apr 21, 2026	No releases on Apr 28, 2026	No releases on May 5, 2026	No releases on May 12, 2026	No releases on May 19, 2026	No releases on May 26, 2026	No releases on Jun 2, 2026	No releases on Jun 9, 2026	No releases on Jun 16, 2026	No releases on Jun 23, 2026	No releases on Jun 30, 2026	No releases on Jul 7, 2026	No releases on Jul 14, 2026	No releases on Jul 21, 2026	No releases on Jul 28, 2026	No releases on Aug 4, 2026	No releases on Aug 11, 2026	No releases on Aug 18, 2026	No releases on Aug 25, 2026	No releases on Sep 1, 2026	No releases on Sep 8, 2026
Wednesday	No releases on Sep 10, 2025	No releases on Sep 17, 2025	No releases on Sep 24, 2025	No releases on Oct 1, 2025	No releases on Oct 8, 2025	No releases on Oct 15, 2025	No releases on Oct 22, 2025	No releases on Oct 29, 2025	No releases on Nov 5, 2025	No releases on Nov 12, 2025	No releases on Nov 19, 2025	No releases on Nov 26, 2025	No releases on Dec 3, 2025	No releases on Dec 10, 2025	No releases on Dec 17, 2025	No releases on Dec 24, 2025	No releases on Dec 31, 2025	No releases on Jan 7, 2026	No releases on Jan 14, 2026	No releases on Jan 21, 2026	No releases on Jan 28, 2026	No releases on Feb 4, 2026	No releases on Feb 11, 2026	No releases on Feb 18, 2026	2 releases on Feb 25, 2026	No releases on Mar 4, 2026	No releases on Mar 11, 2026	No releases on Mar 18, 2026	No releases on Mar 25, 2026	No releases on Apr 1, 2026	No releases on Apr 8, 2026	No releases on Apr 15, 2026	No releases on Apr 22, 2026	No releases on Apr 29, 2026	No releases on May 6, 2026	No releases on May 13, 2026	No releases on May 20, 2026	No releases on May 27, 2026	No releases on Jun 3, 2026	No releases on Jun 10, 2026	No releases on Jun 17, 2026	No releases on Jun 24, 2026	No releases on Jul 1, 2026	No releases on Jul 8, 2026	No releases on Jul 15, 2026	No releases on Jul 22, 2026	No releases on Jul 29, 2026	No releases on Aug 5, 2026	No releases on Aug 12, 2026	No releases on Aug 19, 2026	No releases on Aug 26, 2026	No releases on Sep 2, 2026	No releases on Sep 9, 2026
Thursday	No releases on Sep 11, 2025	No releases on Sep 18, 2025	No releases on Sep 25, 2025	No releases on Oct 2, 2025	No releases on Oct 9, 2025	No releases on Oct 16, 2025	No releases on Oct 23, 2025	No releases on Oct 30, 2025	No releases on Nov 6, 2025	No releases on Nov 13, 2025	No releases on Nov 20, 2025	No releases on Nov 27, 2025	No releases on Dec 4, 2025	No releases on Dec 11, 2025	No releases on Dec 18, 2025	No releases on Dec 25, 2025	No releases on Jan 1, 2026	No releases on Jan 8, 2026	No releases on Jan 15, 2026	No releases on Jan 22, 2026	No releases on Jan 29, 2026	No releases on Feb 5, 2026	No releases on Feb 12, 2026	No releases on Feb 19, 2026	No releases on Feb 26, 2026	No releases on Mar 5, 2026	No releases on Mar 12, 2026	No releases on Mar 19, 2026	No releases on Mar 26, 2026	No releases on Apr 2, 2026	No releases on Apr 9, 2026	No releases on Apr 16, 2026	No releases on Apr 23, 2026	No releases on Apr 30, 2026	No releases on May 7, 2026	No releases on May 14, 2026	1 release on May 21, 2026	No releases on May 28, 2026	No releases on Jun 4, 2026	No releases on Jun 11, 2026	No releases on Jun 18, 2026	No releases on Jun 25, 2026	No releases on Jul 2, 2026	No releases on Jul 9, 2026	No releases on Jul 16, 2026	No releases on Jul 23, 2026	No releases on Jul 30, 2026	No releases on Aug 6, 2026	No releases on Aug 13, 2026	No releases on Aug 20, 2026	No releases on Aug 27, 2026	No releases on Sep 3, 2026	No releases on Sep 10, 2026
Friday	No releases on Sep 12, 2025	No releases on Sep 19, 2025	No releases on Sep 26, 2025	No releases on Oct 3, 2025	No releases on Oct 10, 2025	1 release on Oct 17, 2025	No releases on Oct 24, 2025	No releases on Oct 31, 2025	No releases on Nov 7, 2025	No releases on Nov 14, 2025	No releases on Nov 21, 2025	No releases on Nov 28, 2025	No releases on Dec 5, 2025	No releases on Dec 12, 2025	No releases on Dec 19, 2025	No releases on Dec 26, 2025	No releases on Jan 2, 2026	No releases on Jan 9, 2026	No releases on Jan 16, 2026	No releases on Jan 23, 2026	No releases on Jan 30, 2026	No releases on Feb 6, 2026	No releases on Feb 13, 2026	No releases on Feb 20, 2026	No releases on Feb 27, 2026	No releases on Mar 6, 2026	No releases on Mar 13, 2026	No releases on Mar 20, 2026	No releases on Mar 27, 2026	No releases on Apr 3, 2026	No releases on Apr 10, 2026	No releases on Apr 17, 2026	No releases on Apr 24, 2026	No releases on May 1, 2026	No releases on May 8, 2026	No releases on May 15, 2026	No releases on May 22, 2026	No releases on May 29, 2026	No releases on Jun 5, 2026	No releases on Jun 12, 2026	No releases on Jun 19, 2026	No releases on Jun 26, 2026	No releases on Jul 3, 2026	No releases on Jul 10, 2026	No releases on Jul 17, 2026	No releases on Jul 24, 2026	No releases on Jul 31, 2026	No releases on Aug 7, 2026	No releases on Aug 14, 2026	No releases on Aug 21, 2026	No releases on Aug 28, 2026	No releases on Sep 4, 2026
Saturday	No releases on Sep 13, 2025	No releases on Sep 20, 2025	No releases on Sep 27, 2025	No releases on Oct 4, 2025	No releases on Oct 11, 2025	2 releases on Oct 18, 2025	No releases on Oct 25, 2025	No releases on Nov 1, 2025	No releases on Nov 8, 2025	No releases on Nov 15, 2025	No releases on Nov 22, 2025	No releases on Nov 29, 2025	No releases on Dec 6, 2025	No releases on Dec 13, 2025	No releases on Dec 20, 2025	No releases on Dec 27, 2025	No releases on Jan 3, 2026	No releases on Jan 10, 2026	No releases on Jan 17, 2026	No releases on Jan 24, 2026	No releases on Jan 31, 2026	No releases on Feb 7, 2026	No releases on Feb 14, 2026	No releases on Feb 21, 2026	No releases on Feb 28, 2026	No releases on Mar 7, 2026	No releases on Mar 14, 2026	No releases on Mar 21, 2026	1 release on Mar 28, 2026	No releases on Apr 4, 2026	No releases on Apr 11, 2026	No releases on Apr 18, 2026	No releases on Apr 25, 2026	No releases on May 2, 2026	No releases on May 9, 2026	No releases on May 16, 2026	No releases on May 23, 2026	No releases on May 30, 2026	No releases on Jun 6, 2026	No releases on Jun 13, 2026	No releases on Jun 20, 2026	No releases on Jun 27, 2026	No releases on Jul 4, 2026	No releases on Jul 11, 2026	No releases on Jul 18, 2026	No releases on Jul 25, 2026	No releases on Aug 1, 2026	No releases on Aug 8, 2026	No releases on Aug 15, 2026	No releases on Aug 22, 2026	No releases on Aug 29, 2026	No releases on Sep 5, 2026

9 releases in the last year, busiest day 2

Changelog

v3.2.1

LatestMay 21, 2026 · 4 months ago

Fixed 1

request.length no longer overflows on Content-Length greater than 2GB

From koa

What's Changed

fix: request.length overflows on Content-Length > 2GB by @tejgokani in https://github.com/koajs/koa/pull/1961

New Contributors

@tejgokani made their first contribution in https://github.com/koajs/koa/pull/1961

Full Changelog: https://github.com/koajs/koa/compare/v3.2.0...v3.2.1

View originalPermalink

v3.2.0

Mar 28, 2026 · 6 months ago

Added 1

Defer AsyncLocalStorage creation for v8 startup snapshots

From koa

What's Changed

docs: remove dead Job Board links by @Jerry-CodeHub in https://github.com/koajs/koa/pull/1926
build(deps-dev): bump qs from 6.14.1 to 6.14.2 by @dependabot[bot] in https://github.com/koajs/koa/pull/1927
chore: Add workflow_dispatch trigger to npm-publish workflow by @Copilot in https://github.com/koajs/koa/pull/1930
feat: defer AsyncLocalStorage creation for v8 startup snapshots by @killagu in https://github.com/koajs/koa/pull/1946

New Contributors

@Jerry-CodeHub made their first contribution in https://github.com/koajs/koa/pull/1926
@killagu made their first contribution in https://github.com/koajs/koa/pull/1946

Full Changelog: https://github.com/koajs/koa/compare/v3.1.2...v3.2.0

View originalPermalink

v2.16.4

Feb 25, 2026 · 7 months ago

Security 1

Fix Host Header Injection vulnerability via ctx.hostname

From koa

What's Changed

fix(security): Host Header Injection via ctx.hostname by @killagu https://github.com/koajs/koa/security/advisories/GHSA-7gcc-r8m5-44qm

View originalPermalink

v3.1.2

Feb 25, 2026 · 7 months ago

Changed 5

Bump http-errors from 2.0.0 to 2.0.1
Bump mime-types from 3.0.1 to 3.0.2
Bump content-disposition from 0.5.4 to 1.0.1
Bump qs from 6.14.0 to 6.14.1
Bump js-yaml from 4.1.0 to 4.1.1

Security 1

Fix Host Header Injection via ctx.hostname

From koa

What's Changed

fix: typo in troubleshooting.md by @WuMingDao in https://github.com/koajs/koa/pull/1916
build(deps-dev): bump qs from 6.14.0 to 6.14.1 by @dependabot[bot] in https://github.com/koajs/koa/pull/1921
build(deps): bump http-errors from 2.0.0 to 2.0.1 by @dependabot[bot] in https://github.com/koajs/koa/pull/1919
build(deps): bump mime-types from 3.0.1 to 3.0.2 by @dependabot[bot] in https://github.com/koajs/koa/pull/1918
docs: use correct term "Server-Sent Events" in guide by @jtr860830 in https://github.com/koajs/koa/pull/1920
build(deps): bump content-disposition from 0.5.4 to 1.0.1 by @dependabot[bot] in https://github.com/koajs/koa/pull/1917
build(deps-dev): bump js-yaml from 4.1.0 to 4.1.1 by @dependabot[bot] in https://github.com/koajs/koa/pull/1922
fix(security): Host Header Injection via ctx.hostname by @killagu https://github.com/koajs/koa/security/advisories/GHSA-7gcc-r8m5-44qm

New Contributors

@WuMingDao made their first contribution in https://github.com/koajs/koa/pull/1916
@jtr860830 made their first contribution in https://github.com/koajs/koa/pull/1920

Full Changelog: https://github.com/koajs/koa/compare/v3.1.1...v3.1.2

View originalPermalink

v3.1.1

Oct 27, 2025 · 11 months ago

Fixed 1

Only destroy the original value if the new value is not a stream

From koa

What's Changed

fix: only original value destroy if the new value is not a stream by @yowainwright in https://github.com/koajs/koa/pull/1914

Full Changelog: https://github.com/koajs/koa/compare/v3.1.0...v3.1.1

View originalPermalink

v3.1.0

Oct 26, 2025 · 11 months ago

Fixed 2

Fix memory leak relating to issue 1834
Add stream cleanup

From koa

What's Changed

feat: fixes mem leak relating to issue-1834 by @yowainwright in https://github.com/koajs/koa/pull/1893
fix: adds steam clean up by @yowainwright in https://github.com/koajs/koa/pull/1910

Full Changelog: https://github.com/koajs/koa/compare/v3.0.3...v3.1.0

View originalPermalink

v2.16.3

Oct 18, 2025 · 11 months ago

Fixed 1

Normalize referer before redirect

From koa

What's Changed

fix: normalize referer before redirect by @fengmk2 in https://github.com/koajs/koa/pull/1909

Full Changelog: https://github.com/koajs/koa/compare/v2.16.2...v2.16.3

View originalPermalink

v3.0.3

Oct 18, 2025 · 11 months ago

Fixed 1

Normalize referer before redirect

From koa

What's Changed

fix: normalize referer before redirect by @fengmk2 in https://github.com/koajs/koa/pull/1908

Full Changelog: https://github.com/koajs/koa/compare/v3.0.2...v3.0.3

View originalPermalink

v3.0.2

Oct 17, 2025 · 11 months ago

Fixed 1

Fix response.attachment behaviour that leads to Content-Type Sniffing

From koa

What's Changed

fix: fixes response.attachment behaviour leads to Content-Type Sniffing by @yowainwright in https://github.com/koajs/koa/pull/1904
chore: use NPM trusted publishing with semver tag triggers by @Copilot in https://github.com/koajs/koa/pull/1907