[Umbrella] Releasing Suspense

Let's use this issue to track the remaining tasks for releasing Suspense to open source. **Last updated: March 24, 2022** **Blog post: [The Plan for React 18](https://reactjs.org/blog/2021/06/08/the-plan-for-react-18.html)** ## Completed: React 16 - [x] Release `<Suspense>` with `React.lazy` for client-side lazy loading ## Completed: [React 18 Alpha](https://reactjs.org/blog/2021/06/08/the-plan-for-react-18.html) - [x] Implement concurrent rendering, which is a prerequisite to everything else. - [x] Fix [fundamental flaws](https://github.com/facebook/react/pull/18796) in the concurrency model that made the behavior difficult to understand and caused many bugs. - [x] Rewrite [how React traverses the tree](https://github.com/facebook/react/pull/19261) to unblock fixing Suspense quirks. - [x] Redesign how [React integrates with the scheduler](https://github.com/facebook/react/pull/19121) to simplify the model, fix bugs, and prepare for native browser scheduling. - [x] [Fix `<Suspense>` quirks](https://github.com/reactwg/react-18/discussions/7): Previously, effects would fire inside a suspended tree too early. For example, you would see an effect from a component that's still hidden behind a placeholder. Now effects will run only _after_ the content has been revealed. We expect this to fix existing application code bugs. - [x] [Hiding and showing existing content should re-fire layout effects](https://github.com/reactwg/react-18/discussions/31): If a component that's alread

Posted by acdlite on Jul 13, 2018, 8:01 PM

Tags

• ux (Software)

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