## 4.0.6
* Fix crashes and other bugs related to optional chaining. ([@gaearon](https://github.com/gaearon) in [#19273](https://github.com/facebook/react/pull/19273) and [#19275](https://github.com/facebook/react/pull/19275))

## 4.0.5
* Fix a crash when the dependency array has an empty element. ([@yeonjuan](https://github.com/yeonjuan) in [#19145](https://github.com/facebook/react/pull/19145))
* Fix a false positive warning that occurs with optional chaining. ([@fredvollmer](https://github.com/fredvollmer) in [#19061](https://github.com/facebook/react/pull/19061))

## 4.0.4
* Fix a false positive warning that occurs with optional chaining. ([@fredvollmer](https://github.com/fredvollmer) in [#19061](https://github.com/facebook/react/pull/19061))
* Support nullish coalescing and optional chaining. ([@yanneves](https://github.com/yanneves) in [#19008](https://github.com/facebook/react/pull/19008))

## 4.0.3
* Remove the heuristic that checks all Hooks ending with `Effect` due to too many false positives. ([@gaearon](https://github.com/gaearon) in [#19004](https://github.com/facebook/react/pull/19004))

## 4.0.2
* Prevent Hooks that have `Effect` in the middle from being considered effects. ([@surgeboris](https://github.com/surgeboris) in [#18907](https://github.com/facebook/react/pull/18907))

## 4.0.1
* Declare support for ESLint 7. ([@MichaelDeBoey](https://github.com/MichaelDeBoey) in [#18878](https://github.com/facebook/react/pull/18878))

## 4.0.0

* **New Violations:** Consider `PascalCase.useFoo()` calls as Hooks. ([@cyan33](https://github.com/cyan33) in [#18722](https://github.com/facebook/react/pull/18722))
* **New Violations:** Check callback body when it's not written inline. ([@gaearon](https://github.com/gaearon) in [#18435](https://github.com/facebook/react/pull/18435))
* **New Violations:** Check dependencies for all Hooks ending with `Effect`. ([@airjp73](https://github.com/airjp73) in [#18580](https://github.com/facebook/react/pull/18580))
* Add a way to enable the dangerous autofix. ([@gaearon](https://github.com/gaearon) in [#18437](https://github.com/facebook/react/pull/18437))
* Offer a more sensible suggestion when encountering an assignment. ([@Zzzen](https://github.com/Zzzen) in [#16784](https://github.com/facebook/react/pull/16784))
* Consider TypeScript casts of `useRef` as constant. ([@sophiebits](https://github.com/sophiebits) in [#18496](https://github.com/facebook/react/pull/18496))
* Add documentation. ([@ghmcadams](https://github.com/ghmcadams) in [#16607](https://github.com/facebook/react/pull/16607))

## 3.0.0

* **New Violations:** Forbid calling Hooks from classes. ([@ianobermiller](https://github.com/ianobermiller) in [#18341](https://github.com/facebook/react/pull/18341))
* Add a recommended config. ([@SimenB](https://github.com/SimenB) in [#14762](https://github.com/facebook/react/pull/14762))

## 2.5.0

* Fix a misleading error message in loops. ([@M-Izadmehr](https://github.com/M-Izadmehr) in [#16853](https://github.com/facebook/react/pull/16853))

## 2.4.0

* **New Violations:** Run checks for functions passed to `forwardRef`. ([@dprgarner](https://github.com/dprgarner) in [#17255](https://github.com/facebook/react/pull/17255))
* **New Violations:** Check for ref usage in any Hook containing the word `Effect`. ([@gaearon](https://github.com/gaearon) in [#17663](https://github.com/facebook/react/pull/17663))
* Disable dangerous autofix and use ESLint Suggestions API instead. ([@wdoug](https://github.com/wdoug) in [#17385](https://github.com/facebook/react/pull/17385))

## 2.0.0

* **New Violations:** Forbid calling Hooks at the top level. ([@gaearon](https://github.com/gaearon) in [#16455](https://github.com/facebook/react/pull/16455))
* Fix a crash when referencing arguments in arrow functions. ([@hristo-kanchev](https://github.com/hristo-kanchev) in [#16356](https://github.com/facebook/react/pull/16356))


## 1.x

The 1.x releases aren’t noted in this changelog, but you can find them in the [commit history](https://github.com/facebook/react/commits/master/packages/eslint-plugin-react-hooks).
