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+
+2.6.1 / 2018-10-23
+==================
+
+**fixes**
+  * [[`4964242`](http://github.com/koajs/koa/commit/49642428342e5f291eb9d690802e83ed830623b5)] - fix: use X-Forwarded-Host first on app.proxy present (#1263) (fengmk2 <<fengmk2@gmail.com>>)
+
+2.6.0 / 2018-10-23
+==================
+
+**features**
+  * [[`9c5c58b`](http://github.com/koajs/koa/commit/9c5c58b18363494976185e7ddc790ac63de840ed)] - feat: use :authority header of http2 requests as host (#1262) (Martin Michaelis <<code@mgjm.de>>)
+  * [[`9146024`](http://github.com/koajs/koa/commit/9146024e1094e8bb871ab15d1b7fc556a710732f)] - feat: response.attachment append a parameter: options from contentDisposition (#1240) (小雷 <<863837949@qq.com>>)
+
+**others**
+  * [[`d32623b`](http://github.com/koajs/koa/commit/d32623baa7a6273d47be67d587ad4ea0ecffc5de)] - docs: Update error-handling.md (#1239) (urugator <<j.placek@centrum.cz>>)
+
+2.5.3 / 2018-09-11
+==================
+
+**fixes**
+  * [[`2ee32f5`](http://github.com/koajs/koa/commit/2ee32f50b88b383317e33cc0a4bfaa5f2eadead7)] - fix: pin debug@~3.1.0 avoid deprecated warnning (#1245) (fengmk2 <<fengmk2@gmail.com>>)
+
+**others**
+  * [[`2180839`](http://github.com/koajs/koa/commit/2180839eda2cb16edcfda46ccfe24711680af850)] - docs: Update koa-vs-express.md (#1230) (Clayton Ray <<iamclaytonray@gmail.com>>)
+
+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
+==================
+
+  * add support for `err.headers` in `ctx.onerror()`
+    - see: https://github.com/koajs/koa/pull/668
+    - note: you should set these headers in your custom error handlers as well
+    - docs: https://github.com/koajs/koa/blob/master/docs/error-handling.md
+  * fix `cookies`' detection of http/https
+    - see: https://github.com/koajs/koa/pull/614
+  * deprecate `app.experimental = true`. Koa v2 does not use this signature.
+  * add a code of conduct
+  * test against the latest version of node
+  * add a lot of docs
+
+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
+==================
+
+ * empty `request.query` objects are now always the same instance
+ * bump `fresh@0.3.0`
+
+0.20.0 / 2015-04-30
+==================
+
+Breaking change if you're using `this.get('ua') === undefined` etc.
+For more details please checkout [#438](https://github.com/koajs/koa/pull/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
+==================
+
+ * add `res.append()`
+ * fix path usage for node@0.11.15
+
+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](https://github.com/expressjs/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.throw`n 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](https://github.com/koajs/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