# Change Log
All notable changes to this project will be documented in this file. See [standard-version](https://github.com/conventional-changelog/standard-version) for commit guidelines.
# [4.0.0](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-rc.0...v4.0.0) (2018-02-27)
### Bug Fixes
* proper children reconcile for nested tags, fixes [#869](https://github.com/gaearon/react-hot-loader/issues/869) ([#871](https://github.com/gaearon/react-hot-loader/issues/871)) ([2de4e58](https://github.com/gaearon/react-hot-loader/commit/2de4e58))
# [4.0.0-rc.0](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.23...v4.0.0-rc.0) (2018-02-19)
# [4.0.0-beta.23](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.22...v4.0.0-beta.23) (2018-02-18)
### Bug Fixes
* disable RHL when HMR is not activated ([#863](https://github.com/gaearon/react-hot-loader/issues/863)) ([ffe0035](https://github.com/gaearon/react-hot-loader/commit/ffe0035))
* fix various bugs ([#857](https://github.com/gaearon/react-hot-loader/issues/857)) ([8fa1d42](https://github.com/gaearon/react-hot-loader/commit/8fa1d42)), closes [#845](https://github.com/gaearon/react-hot-loader/issues/845) [#843](https://github.com/gaearon/react-hot-loader/issues/843)
* transfer original prototype methods ([#859](https://github.com/gaearon/react-hot-loader/issues/859)) ([0b7997f](https://github.com/gaearon/react-hot-loader/commit/0b7997f)), closes [#845](https://github.com/gaearon/react-hot-loader/issues/845) [#843](https://github.com/gaearon/react-hot-loader/issues/843) [#858](https://github.com/gaearon/react-hot-loader/issues/858)
# [4.0.0-beta.22](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.21...v4.0.0-beta.22) (2018-02-10)
### Bug Fixes
* fix reconciler warnings ([#852](https://github.com/gaearon/react-hot-loader/issues/852)) ([963677f](https://github.com/gaearon/react-hot-loader/commit/963677f)), closes [#843](https://github.com/gaearon/react-hot-loader/issues/843)
### Features
* ship flat bundles ([#844](https://github.com/gaearon/react-hot-loader/issues/844)) ([7580552](https://github.com/gaearon/react-hot-loader/commit/7580552))
# [4.0.0-beta.21](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.20...v4.0.0-beta.21) (2018-02-05)
### Bug Fixes
* fix proxy adapter ([#842](https://github.com/gaearon/react-hot-loader/issues/842)) ([9bb8251](https://github.com/gaearon/react-hot-loader/commit/9bb8251))
# [4.0.0-beta.20](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.19...v4.0.0-beta.20) (2018-02-04)
# [4.0.0-beta.19](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.18...v4.0.0-beta.19) (2018-02-03)
### Bug Fixes
* **areComponentsEqual:** fix behaviour ([#829](https://github.com/gaearon/react-hot-loader/issues/829)) ([d4dcd07](https://github.com/gaearon/react-hot-loader/commit/d4dcd07))
* **prop-types:** add prop-types as dependency ([#823](https://github.com/gaearon/react-hot-loader/issues/823)) ([c2b7c3c](https://github.com/gaearon/react-hot-loader/commit/c2b7c3c))
* regenerate overriden members ([#837](https://github.com/gaearon/react-hot-loader/issues/837)) ([39d4f5b](https://github.com/gaearon/react-hot-loader/commit/39d4f5b)), closes [#836](https://github.com/gaearon/react-hot-loader/issues/836)
# [4.0.0-beta.18](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.17...v4.0.0-beta.18) (2018-01-25)
### Bug Fixes
* break cyclic dependency ([#822](https://github.com/gaearon/react-hot-loader/issues/822)) ([328d793](https://github.com/gaearon/react-hot-loader/commit/328d793)), closes [#820](https://github.com/gaearon/react-hot-loader/issues/820)
# [4.0.0-beta.17](https://github.com/gaearon/react-hot-loader/compare/4.0.0-beta.16...v4.0.0-beta.17) (2018-01-22)
### Features
* remove useless dependencies ([e1b83e5](https://github.com/gaearon/react-hot-loader/commit/e1b83e5)), closes [#808](https://github.com/gaearon/react-hot-loader/issues/808)
### Bug Fixes
* warn about errors [#814](https://github.com/gaearon/react-hot-loader/issues/814)
* handle wrong module [#813](https://github.com/gaearon/react-hot-loader/issues/#813)
# [4.0.0-beta.16](https://github.com/theKashey/react-hot-loader/compare/v4.0.0-beta.15-1...v4.0.0-beta.16) (2018-01-21)
* **react-hot-loader:** Hard code consts from stand-in [#807](https://github.com/gaearon/react-hot-loader/issues/807))
* **react-hot-loader:** Support React 16 Fragments [#799](https://github.com/gaearon/react-hot-loader/issues/799))
* **react-hot-loader:** Suppress some warnings [#804](https://github.com/gaearon/react-hot-loader/issues/804))
* **react-hot-loader:** Better Electron support [#794](https://github.com/gaearon/react-hot-loader/issues/794))
* **react-stand-in:** Fix IE11 regression (again)
# [4.0.0-beta.15](https://github.com/theKashey/react-hot-loader/compare/v4.0.0-beta.14...v4.0.0-beta.15) (2018-01-16)
* **react-deep-force-update:** remove from the project
* **react-stand-in:** fix MobX (Cannot assign to read only property 'render', [#796](https://github.com/gaearon/react-hot-loader/issues/796))
# [4.0.0-beta.14](https://github.com/theKashey/react-hot-loader/compare/v4.0.0-beta.13...v4.0.0-beta.14) (2018-01-14)
* **react-hot-loader:** support IE11 ([#772](https://github.com/gaearon/react-hot-loader/issues/772))
* **react-stand-in:** support Relay Classis/Modern([#775](https://github.com/gaearon/react-hot-loader/issues/775))
# [4.0.0-beta.13](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.12...v4.0.0-beta.13) (2018-01-09)
### Features
* **react-hot-loader:** detect wrong usage of `hot` ([#766](https://github.com/gaearon/react-hot-loader/issues/766)) ([b9738c7](https://github.com/gaearon/react-hot-loader/commit/b9738c7)), closes [#765](https://github.com/gaearon/react-hot-loader/issues/765)
# [4.0.0-beta.12](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.11...v4.0.0-beta.12) (2018-01-02)
### Bug Fixes
* target ES5 for production code ([b1d6d05](https://github.com/gaearon/react-hot-loader/commit/b1d6d05)), closes [#758](https://github.com/gaearon/react-hot-loader/issues/758)
# [4.0.0-beta.11](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.10...v4.0.0-beta.11) (2017-12-30)
### Bug Fixes
* **build:** fix builded files ([f4aa275](https://github.com/gaearon/react-hot-loader/commit/f4aa275))
# [4.0.0-beta.10](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.9...v4.0.0-beta.10) (2017-12-30)
### Bug Fixes
* **babel:** do not use capital letters ([#754](https://github.com/gaearon/react-hot-loader/issues/754)) ([bf48675](https://github.com/gaearon/react-hot-loader/commit/bf48675)), closes [#753](https://github.com/gaearon/react-hot-loader/issues/753)
# [4.0.0-beta.9](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.8...v4.0.0-beta.9) (2017-12-30)
### Bug Fixes
* **react-hot-loader:** require `react-hot-loader/patch` in each file ([3038538](https://github.com/gaearon/react-hot-loader/commit/3038538)), closes [#750](https://github.com/gaearon/react-hot-loader/issues/750)
# [4.0.0-beta.8](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.7...v4.0.0-beta.8) (2017-12-29)
### Bug Fixes
* **react-hot-loader:** fix missing export ([239ca5d](https://github.com/gaearon/react-hot-loader/commit/239ca5d))
# [4.0.0-beta.7](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.6...v4.0.0-beta.7) (2017-12-29)
### Bug Fixes
* handle async loading of patch ([#739](https://github.com/gaearon/react-hot-loader/issues/739)) ([af8bd4b](https://github.com/gaearon/react-hot-loader/commit/af8bd4b))
* **react-hot-loader:** fix componentWillUpdate ([95a9e79](https://github.com/gaearon/react-hot-loader/commit/95a9e79))
* use safe defineProperty ([f901192](https://github.com/gaearon/react-hot-loader/commit/f901192))
### Features
* replace warnings by `configure({ debug: true })` ([4f079c6](https://github.com/gaearon/react-hot-loader/commit/4f079c6))
# [4.0.0-beta.6](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.5...v4.0.0-beta.6) (2017-12-27)
Same as 4.0.0-beta.5, fix build problem.
# [4.0.0-beta.5](https://github.com/gaearon/react-hot-loader/compare/v4.0.0-beta.4...v4.0.0-beta.5) (2017-12-27)
### Bug Fixes
* improve decorators support (autobind)
([56883c9](https://github.com/gaearon/react-hot-loader/commit/56883c9))
* support nested children
([#735](https://github.com/gaearon/react-hot-loader/issues/735))
([5c81655](https://github.com/gaearon/react-hot-loader/commit/5c81655))
# Manual changelog
### 4.0.0-beta.4
* Handle terminal node in stack (#728)
### 4.0.0-beta.3
* Use setTimeout to tick (#726)
### 4.0.0-beta.2
* Bunch of fixes (#725)
### 4.0.0-beta.1
* Remove webpack plugin (#707)
* Replace react-proxy by react-stand-in (#707)
* Replace react-deep-force-update by reconciler (#703)
* Add `hot` HOC (#707)
* Add `areComponentsEqual` (#304)
* `warnings` flag now controls reconciler, not dev patch.
### 3.1.1
* Revert fix arrow function that uses props in constructor (#670)
* Remove babel-template dependency (#671)
### 3.1.0
* Add an option to disable warnings (#669)
* Fix arrow function that uses props in constructor (#670)
### 3.0.0
* Add React 16 support (#629, #658)
* Remove RedBox as default error catcher (#494)
### 3.0.0-beta.6
* Use production versions of `patch` and `AppContainer` if no `module.hot`
available, so it doesn't break people using `NODE_ENV=test`. (#398)
* Opt out of transforming static class properties. (#381)
### 3.0.0-beta.5
* Makes the class properties portion of the Babel plugin work with async
functions. (#372)
* Change the output of the tagger code in the Babel plugin so that it doesn't
break the output of `babel-node`. (#374)
### 3.0.0-beta.4
* Extends the Babel plugin to enable hot reloading of class properties. (#322)
* Fixes a bug in the Webpack loader from a component importing a module with the
same basename. (#347)
### 3.0.0-beta.3
* Fixes broken import of RedBox, which led to confusing stack traces when
applications threw errors. (#314)
* Add `module.hot` checks to conditional `require()`s to remove unnecessary
warnings when using server rendering. (#302)
### 3.0.0-beta.2
* Patch `React.createFactory` (#287)
* Fix props typo (#285)
### 3.0.0-beta.1
* Adds complete React Router support. Async routes should work fine now. (#272)
* Fixes a nasty bug which caused unwrapped component to render. (#266, #272)
* Fixes an issue that caused components with `shouldComponentUpdate`
optimizations not getting redrawn (#269,
2a1e384d54e1919117f70f75dd20ad2490b1d9f5)
* Internal: a rewrite and much better test coverage.
### 3.0.0-beta.0
* Fixes an issue when used in Webpack 2
(https://github.com/gaearon/react-hot-loader/issues/263)
* **Breaking change:** instead of
```js
;
```
````
you now need to write
```js
````
(#250)
**See
[this commit](https://github.com/gaearon/react-hot-boilerplate/commit/b52c727937a499f3efdc5dceb74ae952aa318c3a)
as an update reference!**
### 3.0.0-alpha
Big changes both to internals and usage. No docs yet but you can look at
https://github.com/gaearon/react-hot-boilerplate/pull/61 for an example.
### 2.0.0-alpha
**Experimental release that isn't really representative on what will go in 2.0,
but uses the new engine.**
Some ideas of what should be possible with the new engine:
* There is no requirement to pass `getRootInstances()` anymore, so React Hot
Loader doesn't need `react/lib/ReactMount` or walk the tree, which was
somewhat fragile and changing between versions
* Static methods and properties are now hot-reloaded
* Instance getters and setters are now hot reloaded
* Static getters and setters are now hot reloaded
* Deleted instance methods are now deleted during hot reloading
* Single method form of
[autobind-decorator](https://github.com/andreypopp/autobind-decorator) is now
supported
What might get broken:
* We no longer overwrite or even touch the original class. Every time makeHot is
invoked, it will return a special proxy class. This means a caveat: for
example, static methods will only be hot-reloaded if you refer to them as
`this.constructor.doSomething()` instead of `FooBar.doSomething()`. This is
because React Hot Loader calls `makeHot` right before exporting, so `FooBar`
still refers to the original class. Similarly, `this.constructor === App` will
be `false` inside `App` unless you call `App = makeHot(App)` manually, which
you can't do with React Hot Loader. **I'm not sure how much of a problem this
will be, so let me know if it pains you.** In the longer term, we will
deprecate React Hot Loader in favor of a Babel plugin which will be able to
rewrite class definitions correctly, so it shouldn't be a problem for a long
time. If there is demand, we can introduce a mode that rewrites passed
classes, too.
### 1.3.1
* Fix import for ReactMount to support 15.4.0
(**[#430](https://github.com/gaearon/react-hot-loader/pull/430)**)
### 1.3.0
* Recover from module errors on module level
(**[#187](https://github.com/gaearon/react-hot-loader/pull/187)**)
### 1.2.9
* Silently ignore exports that raise an error when accessed (#114)
* Update `source-map` dependency
### 1.2.8
* Remove React from peerDependencies
* Update React Hot API to support React 0.14 beta 1
### 1.2.7
* Preserve CommonJS `exports` context in the wrapping closure
(**[#124](https://github.com/gaearon/react-hot-loader/issues/124)**)
### 1.2.6
* Fix autobinding on newly added methods for `createClass`-style classes
### 1.2.5
* Fix “React is not defined” error
### 1.2.4
* Avoid updating each class twice in React 0.12
### 1.2.3
* Explicitly exclude `react/lib` files from processing. You **should** use
`exclude: /node_modules/` in configuration, but at least this doesn't blow up
for those who don't.
### 1.2.2
* Fix crash on React 0.13. Now compatible!
### 1.2.1
* Don't try to flatten inheritance chains, as it causes problems with `super`
* Instead, automatically opt custom base classes into hot reloading as long as
they descend from `React.Component` (in React 0.13). If your custom base class
doesn't do that but you'd still want to have hot reloading, you need to
manually opt it in via `module.makeHot` API.
### 1.2.0
* Support hot-reloading components without a base class
(**[react-hot-api#5](https://github.com/gaearon/react-hot-api/issues/5)**)
* Support hot-reloading inheritance chains
(**[react-hot-api#10](https://github.com/gaearon/react-hot-api/issues/10)**)
* Support using React 0.13 as an external
### 1.1.7
* Add React 0.13 RC2 to peerDeps
### 1.1.6
* Allow React 0.13 RC1
* Better support for ES6 inheritance
* Fix reloading for modules with null prototype chain (**#82**)
### 1.1.5
* Wrap user code in IEFF to prevent losing `"use strict"`. Fixes #75
### 1.1.4
* Fix crash when hot-reloading element factory. (Note: React discourages
exporting factories.)
### 1.1.3
* Avoid warnings on React 0.13
### 1.1.2
* Compatibility with React 0.13.0-beta.1
### 1.1.1
* Fix edge cases by requiring `react/lib/ReactMount` in transformed source files
* Add a warning if `ReactMount` doesn't return anything useful (e.g. when using
external React)
### 1.1.0
* Skipping `node_modules` entirely
[wasn't](https://github.com/gaearon/react-hot-loader/issues/58)
[the best idea](https://github.com/gaearon/react-hot-loader/issues/55).
Instead, we now specifically skip `node_modules/react/`,
`node_modules/webpack/` and `node_modules/react-hot-loader/`. However you are
still **encouraged** to
[add `exclude: /node_modules/` to your loader config](https://github.com/gaearon/react-hot-boilerplate/blob/master/webpack.config.js#L24)
for best performance.
* Now modules that don't export any valid React classes in `module.exports` or
any its properties will not be auto-accepted. This prevents hot loader from
trying to handle non-React updates and allows changes in plain JS files to
propagate to components that can handle them. For example, this allows
[react-jss](https://github.com/jsstyles/react-jss) mixin to apply hot updates
to JSS styles.
### 1.0.7
* Skip `node_modules` entirely. Fixes
[#54](https://github.com/gaearon/react-hot-loader/issues/54) on Windows.
### 1.0.6
* Add `require('react-hot-loader/Injection')` to override Hot Loader behavior.
Now you can supply your own way of getting root component instances, so Hot
Loader can also work in environment where `require('react/lib/ReactMount')` is
not available (for example,
[when React is used as standalone bundle and not NPM package](https://github.com/gaearon/react-hot-loader/issues/53)).
### 1.0.5
* Fix stack overflow when hotifying same class twice
([#52](https://github.com/gaearon/react-hot-loader/issues/52))
### 1.0.4
* Allow both `module.exports` and its properties be components (Fixes
[#50](https://github.com/gaearon/react-hot-loader/issues/50))
### 1.0.3
* In addition to hotifying `module.exports` by default, also hotify all its own
properties
### 1.0.2
* Don't try to hot-replace `module.export`ed `ReactElement`s
### 1.0.1
* Delay `require`ing `ReactMount` to avoid circular dependencies
* Don't process React or Webpack internals to avoid potential issues
### 1.0.0
* Don't rely on `createClass` regex or any other regex
* Only `module.exports` is hot by default
* Supports ES6 classes when they land in React 0.13
* Supports dynamically created classes
* Manual mode
See
[what changed and how to migrate to 1.0](https://github.com/gaearon/react-hot-loader/blob/master/docs/README.md#migrating-to-10).
### 0.5.0
* Adds source map support, contributed by
[Jake Riesterer](https://github.com/jRiest)
### 0.4.5
* Collapse all hot loader code in one line so it doesn't obscure beginning of
file.
### 0.4.4
* Errors occuring in module definition (such as `ReferenceError`) should not
disable further reloading (fixes
**[#29](https://github.com/gaearon/react-hot-loader/issues/29)**)
### 0.4.3
* Support lowercase `react` reference name and usage with ES6 classes
(`createClass(MyComponent.prototype)`) via
**[#27](https://github.com/gaearon/react-hot-loader/issues/27)**
### 0.4.2
* Catch errors in modules and log them instead of reloading (fixes
**[#21](https://github.com/gaearon/react-hot-loader/issues/21)**)
### 0.4.1
* Use more precise
[`React.createClass` regex](https://github.com/gaearon/react-hot-loader/commit/f71c6785131adcc85b91789da0d0a0b9f1a9713f)
to avoid matching own code when hot loader is applied to all JS files.
### 0.4.0
* Ignore files that contain no `createClass` calls (fixes
**[#17](https://github.com/gaearon/react-hot-loader/issues/17)**)
* Remove the need for pitch loader (fixes
**[#19](https://github.com/gaearon/react-hot-loader/issues/19)**)
* Improve performance by only using one loader instead of two
* Now that performance is acceptable, remove desktop notifications and `notify`
option
* It is now recommended that you use `devtool: 'eval'` because it's much faster
and has no downsides anymore
### 0.3.1
* Avoid warnings on old browsers with missing `Notification` API
* Errors don't cause page reload anymore
### 0.3.0
* Use React 0.11