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[!IMPORTANT] Moving forwards we are using the GitHub releases page at https://github.com/koajs/koa/releases in combination with np for publishing releases and their changelogs.

3.0.0-alpha.3 / 2025-02-11

fixes

  • Avoid redos on host and protocol getter

3.0.0-alpha.2 / 2024-11-04

breaking changes

  • Update http-errors to v2.0.0 #1486
  • Remove res.redirect('back'), add back() method to ctx #1115
  • Replace node querystring with URLSearchParams #1828
  • Remove obsolete createAsyncCtxStorageMiddleware #1817

features

  • Add support for web WHATWG #1830

updates

  • Update cookies to ~0.9.1 #1846
  • Update statuses to ^2.0.1
  • Update supertest to ^7.0.0 #1841

fixes

  • Fix exports.defaults in package.json #1630
  • Fix leaky handles in tests #1838
  • Fix body null checks #1814
  • Fix reformatting redirect URLs #1805 #1804
  • Fix passing ctx in error handler #1758

migrations

  • Migrate from jest to the native node test runner #1845

3.0.0-alpha.1 / 2023-04-12

fixes

3.0.0-alpha.0 / 2023-01-02

Breaking Changes

  • Supports node@12+ only.
  • Removes generator deprecation messages. Generators are no longer supported. Koa no longer asserts if generators are used.
  • Set content-length: 0 if body is explicitly set to null @ognjenjevremovic #1528

Features

  • Use asyncLocalStorage to get current context from app, e.g.: const ctx = app.currentContext.

Fixes

  • fix: Do not response Content-Length if Transfer-Encoding is defined #1562 @charlyzeng
  • fix: Set body to null if ctx.type = json and ctx.body = null #1059 @likegun

2.13.1 / 2021-01-04

fixes

others

2.13.0 / 2020-06-21

features

others

2.12.1 / 2020-06-13

fixes

others

2.12.0 / 2020-05-18

features

others

2.11.0 / 2019-10-28

features

others

2.10.0 / 2019-10-12

features

2.9.0 / 2019-10-12

features

others

2.8.2 / 2019-09-28

fixes

others

2.8.1 / 2019-08-19

fixes

2.8.0 / 2019-08-19

features

fixes

others

2.7.0 / 2019-01-28

features

others

2.6.2 / 2018-11-10

fixes

others

2.6.1 / 2018-10-23

fixes

2.6.0 / 2018-10-23

features

others

2.5.3 / 2018-09-11

fixes

others

2.5.2 / 2018-07-12

  • deps: upgrade all dependencies
  • perf: avoid stringify when set header (#1220)
  • perf: cache content type's result (#1218)
  • perf: lazy init cookies and ip when first time use it (#1216)
  • chore: fix comment & approve cov (#1214)
  • docs: fix grammar
  • test&cov: add test case (#1211)
  • Lazily initialize request.accept and delegate context.accept (#1209)
  • fix: use non deprecated custom inspect (#1198)
  • Simplify processes in the getter request.protocol (#1203)
  • docs: better demonstrate middleware flow (#1195)
  • fix: Throw a TypeError instead of a AssertionError (#1199)
  • chore: mistake in a comment (#1201)
  • chore: use this.res.socket insteadof this.ctx.req.socket (#1177)
  • chore: Using "listenerCount" instead of "listeners" (#1184)

2.5.1 / 2018-04-27

  • test: node v10 on travis (#1182)
  • fix tests: remove unnecessary assert doesNotThrow and api calls (#1170)
  • use this.response insteadof this.ctx.response (#1163)
  • deps: remove istanbul (#1151)
  • Update guide.md (#1150)

2.5.0 / 2018-02-11

  • feat: ignore set header/status when header sent (#1137)
  • run coverage using --runInBand (#1141)
  • [Update] license year to 2018 (#1130)
  • docs: small grammatical fix in api docs index (#1111)
  • docs: fixed typo (#1112)
  • docs: capitalize K in word koa (#1126)
  • Error handling: on non-error throw try to stringify if error is an object (#1113)
  • Use eslint-config-koa (#1105)
  • Update mgol's name in AUTHORS, add .mailmap (#1100)
  • Avoid generating package locks instead of ignoring them (#1108)
  • chore: update copyright year to 2017 (#1095)

2.4.1 / 2017-11-06

  • fix bad merge w/ 2.4.0

2.4.0 / 2017-11-06

UNPUBLISHED

  • update package.engines.node to be more strict
  • update fresh@^0.5.2
  • fix: inspect() no longer crashes context
  • fix: gated res.statusMessage for HTTP/2
  • added: app.handleRequest() is exposed

2.3.0 / 2017-06-20

  • fix: use Buffer.from()
  • test on node 7 & 8
  • add package-lock.json to .gitignore
  • run lint --fix
  • add request.header in addition to request.headers
  • add IPv6 hostname support

2.2.0 / 2017-03-14

  • fix: drop package.engines.node requirement to >= 6.0.0
    • this fixes yarn, which errors when this semver range is not satisfied
  • bump cookies@~0.7.0
  • bump fresh@^0.5.0

2.1.0 / 2017-03-07

  • added: return middleware chain promise from callback() #848
  • added: node v7.7+ res.getHeaderNames() support #930
  • added: err.headerSent in error handling #919
  • added: lots of docs!

2.0.1 / 2017-02-25

NOTE: we hit a versioning snafu. v2.0.0 was previously released, so v2.0.1 is released as the first v2.x with a latest tag.

  • upgrade mocha #900
  • add names to application's request and response handlers #805
  • breaking: remove unused app.name #899
  • breaking: drop official support for node < 7.6

2.0.0 / ??????????

  • Fix malformed content-type header causing exception on charset get (#898)
  • fix: subdomains should be [] if the host is an ip (#808)
  • don't pre-bound onerror [breaking change] (#800)
  • fix ctx.flushHeaders() to use res.flushHeaders() instead of res.writeHead() (#795)
  • fix(response): correct response.writable logic (#782)
  • merge v1.1.2 and v1.2.0 changes
  • include koa-convert so that generator functions still work
    • NOTE: generator functions are deprecated in v2 and will be removed in v3
  • improve linting
  • improve docs

2.0.0-alpha.8 / 2017-02-13

  • Fix malformed content-type header causing exception on charset get (#898)

2.0.0-alpha.7 / 2016-09-07

  • fix: subdomains should be [] if the host is an ip (#808)

2.0.0-alpha.6 / 2016-08-29

  • don't pre-bound onerror [breaking change]

2.0.0-alpha.5 / 2016-08-10

  • fix ctx.flushHeaders() to use res.flushHeaders() instead of res.writeHead()

2.0.0-alpha.4 / 2016-07-23

  • fix response.writeable during pipelined requests

1.2.0 / 2016-03-03

1.1.2 / 2015-11-05

  • ensure parseurl always working as expected
  • fix Application.inspect() – missing .proxy value.

2.0.0-alpha.3 / 2015-11-05

  • ensure parseurl always working as expected. #586
  • fix Application.inspect() – missing .proxy value. Closes #563

2.0.0-alpha.2 / 2015-10-27

  • remove co and generator support completely
  • improved documentation
  • more refactoring into ES6

2.0.0-alpha.1 / 2015-10-22

  • change the middleware signature to async (ctx, next) => await next()
  • drop node < 4 support and rewrite the codebase in ES6

1.1.1 / 2015-10-22

  • do not send a content-type when the type is unknown #536

1.1.0 / 2015-10-11

  • add app.silent=<Boolean> to toggle error logging @tejasmanohar #486
  • add ctx.origin @chentsulin #480
  • various refactoring
    • add use strict everywhere

1.0.0 / 2015-08-22

  • add this.req check for querystring()
  • don't log errors with err.expose
  • koa now follows semver!

0.21.0 / 2015-05-23

0.20.0 / 2015-04-30

Breaking change if you're using this.get('ua') === undefined etc. For more details please checkout #438.

  • make sure helpers return strict string
  • feat: alias response.headers to response.header

0.19.1 / 2015-04-14

  • non-error thrown, fixed #432

0.19.0 / 2015-04-05

  • req.host and req.hostname now always return a string (semi-breaking change)
  • improved test coverage

0.18.1 / 2015-03-01

  • move babel to devDependencies

0.18.0 / 2015-02-14

  • experimental es7 async function support via app.experimental = true
  • use content-type instead of media-typer

0.17.0 / 2015-02-05

Breaking change if you're using an old version of node v0.11! Otherwise, you should have no trouble upgrading.

  • official iojs support
  • drop support for node.js >= 0.11.0 < 0.11.16
  • use Object.setPrototypeOf() instead of __proto__
  • update dependencies

0.16.0 / 2015-01-27

0.15.0 / 2015-01-18

  • add this.href

0.14.0 / 2014-12-15

  • remove x-powered-by response header
  • fix the content type on plain-text redirects
  • add ctx.state
  • bump co@4
  • bump dependencies

0.13.0 / 2014-10-17

  • add this.message
  • custom status support via statuses

0.12.2 / 2014-09-28

  • use wider semver ranges for dependencies koa maintainers also maintain

0.12.1 / 2014-09-21

  • bump content-disposition
  • bump statuses

0.12.0 / 2014-09-20

  • add this.assert()
  • use content-disposition

0.11.0 / 2014-09-08

  • fix app.use() assertion #337
  • bump a lot of dependencies

0.10.0 / 2014-08-12

  • add ctx.throw(err, object) support
  • add ctx.throw(err, status, object) support

0.9.0 / 2014-08-07

  • add: do not set err.expose to true when err.status not a valid http status code
  • add: alias request.headers as request.header
  • add context.inspect(), cleanup app.inspect()
  • update cookies
  • fix err.status invalid lead to uncaughtException
  • fix middleware gif, close #322

0.8.2 / 2014-07-27

  • bump co
  • bump parseurl

0.8.1 / 2014-06-24

  • bump type-is

0.8.0 / 2014-06-13

  • add `this.response.is()``
  • remove .status=string and res.statusString #298

0.7.0 / 2014-06-07

  • add this.lastModified and this.etag as both getters and setters for ubiquity #292. See koajs/koa@4065bf7 for an explanation.
  • refactor this.response.vary() to use vary #291
  • remove this.response.append() #291

0.6.3 / 2014-06-06

  • fix res.type= when the extension is unknown
  • assert when non-error is passed to app.onerror #287
  • bump finished

0.6.2 / 2014-06-03

  • switch from set-type to mime-types

0.6.1 / 2014-05-11

  • bump type-is
  • bump koa-compose

0.6.0 / 2014-05-01

  • add nicer error formatting
  • add: assert object type in ctx.onerror
  • change .status default to 404. Closes #263
  • remove .outputErrors, suppress output when handled by the dev. Closes #272
  • fix content-length when body is re-assigned. Closes #267

0.5.5 / 2014-04-14

  • fix length when .body is missing
  • fix: make sure all intermediate stream bodies will be destroyed

0.5.4 / 2014-04-12

  • fix header stripping in a few cases

0.5.3 / 2014-04-09

  • change res.type= to always default charset. Closes #252
  • remove ctx.inspect() implementation. Closes #164

0.5.2 / 2014-03-23

  • fix: inspection of app and app.toJSON()
  • fix: let this.thrown errors provide their own status
  • fix: overwriting of content-type w/ HEAD requests
  • refactor: use statuses
  • refactor: use escape-html
  • bump dev deps

0.5.1 / 2014-03-06

  • add request.hostname(getter). Closes #224
  • remove response.charset and ctx.charset (too confusing in relation to ctx.type) [breaking change]
  • fix a debug() name

0.5.0 / 2014-02-19

  • add context.charset
  • add context.charset=
  • add request.charset
  • add response.charset
  • add response.charset=
  • fix response.body= html content sniffing
  • change ctx.length and ctx.type to always delegate to response object [breaking change]

0.4.0 / 2014-02-11

  • remove app.jsonSpaces settings - moved to koa-json
  • add this.response=false to bypass koa's response handling
  • fix response handling after body has been sent
  • changed ctx.throw() to no longer .expose 5xx errors
  • remove app.keys getter/setter, update cookies, and remove keygrip deps
  • update fresh
  • update koa-compose

0.3.0 / 2014-01-17

  • add ctx.host= delegate
  • add req.host=
  • add: context.throw supports Error instances
  • update co
  • update cookies

0.2.1 / 2013-12-30

  • add better 404 handling
  • add check for fn._name in debug() output
  • add explicit .toJSON() calls to ctx.toJSON()

0.2.0 / 2013-12-28

  • add support for .throw(status, msg). Closes #130
  • add GeneratorFunction assertion for app.use(). Closes #120
  • refactor: move .is() to type-is
  • refactor: move content negotiation to "accepts"
  • refactor: allow any streams with .pipe method
  • remove next in callback for now

0.1.2 / 2013-12-21

  • update co, koa-compose, keygrip
  • use on-socket-error
  • add throw(status, msg) support
  • assert middleware is GeneratorFunction
  • ducktype stream checks
  • remove next is app.callback()

0.1.1 / 2013-12-19

  • fix: cleanup socker error handler on response