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We’re not yet asking application authors to try the release.

People won't listen (like me).

For example, TikTok has upgraded to React 18 already (https://twitter.com/Brooooook_lyn/status/1402632529270632456?s=20)

Since people want to try out fresh things immediately, I think a list of what is blocking people from upgrading is helpful and can reduce other one's time-wasting.

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<!-- Please provide a clear and concise description of what the bug is. Include screenshots if needed. Please test using the latest version of the relevant React packages to make sure your issue has not already been fixed. -->

React version: 17.0.2

Steps To Reproduce

1. Render a button and a scrollable list with a height of 150px. The list should contain an array of 15 items, making sure to set the key prop of each item to unique values.
2. Observe that you can see around 8 of the original 15 list items in view.
3. On clicking the button, insert 15 more items into the beginning of the list, once again making sure to set the key prop of each item to unique values.
4. Observe that you can now see around 8 of the new list items in view.

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Link to code example: https://codesandbox.io/s/keen-sound-7q5yf?file=/src/App.js

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The current behavior

If the scroll position is at the very top of a list, after inserting new items at the beginning of the list, the new items are now visible.

The expected behavior

If the scroll position is at the very top of a list, after inserting new items at the beginning of the list, the original items should remain visible.

NOTE: When the scroll position is 1 or more pixels from the top of a list, after inserting new items at the beginning of the list, the new items remain visible as expected.

https://github.com/ReactTraining/react-router/issues/7870

I do not have permission to post https://github.com/reactwg/react-18/discussions. Please open and pin a new issue in that repo to list all widely-used library that does not work with React 18 or need special handling.

I think the documentation has not been updated. This feature has been removed because of performance issues. You could check the blog post here - https://reactjs.org/blog/2019/08/15/new-react-devtools.html, and related #17960

This issue seems to be solved by https://github.com/facebook/react/pull/18031

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Summary

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Summary

<!-- it hadn't been solved-->

@mmnoo that's sort of what I was saying. Think of it is less as "rules", and think of it as "how is this going to potentially change behavior in my application?".

I can't give specifics, because I don't know your app and I don't know what side effects you're considering doing here.

If the "side effect" is logging to the console or writing to localStorage, then while it's technically "breaking the rules", it's meaningless in the grand scheme and won't cause bugs.

If it's, say, making an HTTP DELETE call at the wrong time... then that could be very bad for your app :)

So, try to think about behavior based on the stated way React is going to execute things, not "am I breaking the rules".

Bumps ws from 5.2.2 to 5.2.3. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/websockets/ws/releases">ws's releases</a>.</em></p> <blockquote> <h2>5.2.3</h2> <h1>Bug fixes</h1> <ul> <li>Backported 00c425ec to the 5.x release line (76d47c14).</li> </ul> </blockquote> </details> <details> <summary>Commits</summary> <ul> <li><a href="https://github.com/websockets/ws/commit/6dd88e7e968ef2416445d8f8620c17d99b15c77c"><code>6dd88e7</code></a> [dist] 5.2.3</li> <li><a href="https://github.com/websockets/ws/commit/76d47c1479002022a3e4357b3c9f0e23a68d4cd2"><code>76d47c1</code></a> [security] Fix ReDoS vulnerability</li> <li>See full diff in <a href="https://github.com/websockets/ws/compare/5.2.2...5.2.3">compare view</a></li> </ul> </details> <br />

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