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Update 2019-02-04-react-v16.8.0.md

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Dan Abramov 6 years ago
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@ -21,7 +21,7 @@ If you've never heard of Hooks before, you might find these resources interestin
## No Big Rewrites
We don't recommend rewriting your existing applications to use Hooks overnight. Instead, try using Hooks in some of the new components, and let us know what you think. Code using Hooks will work [side by side](/docs/hooks-intro.html#gradual-adoption-strategy) with your existing code using classes.
We don't recommend rewriting your existing applications to use Hooks overnight. Instead, try using Hooks in some of the new components, and let us know what you think. Code using Hooks will work [side by side](/docs/hooks-intro.html#gradual-adoption-strategy) with existing code using classes.
## Can I Use Hooks Today?
@ -34,13 +34,13 @@ Yes! Starting with 16.8.0, React includes a stable implementation of React Hooks
Note that **to enable Hooks, all React packages need to be 16.8.0 or higher**. Hooks won't work if you forget to update, for example, React DOM.
**React Native will fully support Hooks in its next stable release.**
**React Native will support Hooks in the [0.60 release](https://github.com/react-native-community/react-native-releases/issues/79#issuecomment-457735214).**
The final TypeScript and Flow definitions are currently in review and will be available soon.
The latest TypeScript and Flow definitions for React support Hooks. The Flow definitions will be updated to the final `useReducer` API in the next Flow release.
## Tooling Support
React Hooks are now fully supported by React DevTools. They are also supported in the latest Flow and TypeScript definitions for React. We strongly recommend enabling a new [lint rule called `eslint-plugin-react-hooks`](https://www.npmjs.com/package/eslint-plugin-react-hooks) to enforce best practices with Hooks. It will soon be included into Create React App by default.
React Hooks are now supported by React DevTools. They are also supported in the latest Flow and TypeScript definitions for React. We strongly recommend enabling a new [lint rule called `eslint-plugin-react-hooks`](https://www.npmjs.com/package/eslint-plugin-react-hooks) to enforce best practices with Hooks. It will soon be included into Create React App by default.
## What's Next
@ -58,7 +58,7 @@ We'd like to thank everybody who commented on the [Hooks RFC](https://github.com
React 16.8.0 is the first **stable** release supporting Hooks.
Over the past few months, we have also provided several **alpha** versions for community feedback: `16.7.0-alpha.0`, `16.7.0-alpha.1`, `16.7.0-alpha.2`, and `16.8.0-alpha.0`.
Over the past few months, we have also provided several **alpha** versions for community feedback: `16.7.0-alpha.0`, `16.7.0-alpha.2`, and `16.8.0-alpha.0`.
**We don't recommend depending on alphas in production code.** We publish them so we can make breaking changes in response to community feedback before the API is stable.
@ -68,6 +68,7 @@ Here is a list of all breaking changes to Hooks between the first alpha and the
* Rename `useImperativeMethods` to `useImperativeHandle`. ([@threepointone](https://github.com/threepointone) in [#14565](https://github.com/facebook/react/pull/14565))
* Bail out of rendering on identical values for `useState` and `useReducer` Hooks. ([@acdlite](https://github.com/acdlite) in [#14569](https://github.com/facebook/react/pull/14569))
* Don’t compare the first argument passed to `useEffect`/`useMemo`/`useCallback` Hooks. ([@acdlite](https://github.com/acdlite) in [#14594](https://github.com/facebook/react/pull/14594))
* Use `Object.is` algorithm for comparing `useState` and `useReducer` values. ([@Jessidhia](https://github.com/Jessidhia) in [#14752](https://github.com/facebook/react/pull/14752))
* Render components with Hooks twice in Strict Mode (DEV-only). ([@gaearon](https://github.com/gaearon) in [#14654](https://github.com/facebook/react/pull/14654))
* Improve the `useReducer` Hook lazy initialization API. ([@acdlite](https://github.com/acdlite) in [#14723](https://github.com/facebook/react/pull/14723))
@ -142,6 +143,7 @@ Then add it to your ESLint configuration:
* Bail out of rendering on identical values for `useState` and `useReducer` Hooks. ([@acdlite](https://github.com/acdlite) in [#14569](https://github.com/facebook/react/pull/14569))
* Don’t compare the first argument passed to `useEffect`/`useMemo`/`useCallback` Hooks. ([@acdlite](https://github.com/acdlite) in [#14594](https://github.com/facebook/react/pull/14594))
* Use `Object.is` algorithm for comparing `useState` and `useReducer` values. ([@Jessidhia](https://github.com/Jessidhia) in [#14752](https://github.com/facebook/react/pull/14752))
* Support synchronous thenables passed to `React.lazy()`. ([@gaearon](https://github.com/gaearon) in [#14626](https://github.com/facebook/react/pull/14626))
* Render components with Hooks twice in Strict Mode (DEV-only) to match class behavior. ([@gaearon](https://github.com/gaearon) in [#14654](https://github.com/facebook/react/pull/14654))
* Warn about mismatching Hook order in development. ([@threepointone](https://github.com/threepointone) in [#14585](https://github.com/facebook/react/pull/14585) and [@acdlite](https://github.com/acdlite) in [#14591](https://github.com/facebook/react/pull/14591))

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