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### Improvements to Suspense {/*improvements-to-suspense*/}
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In React 19, when a component suspends, React will immediately commit the fallback of the nearest Suspense boundary without waiting for the entire sibling tree to render. After the fallback commits, React schedules another render for the suspended siblings to "pre-warm" lazy requests in the rest of the tree:
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<Diagramname="prerender"height={162}width={1270}alt="Diagram showing a tree of three components, one parent labeled Accordion and two children labeled Panel. Both Panel components contain isActive with value false.">
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Previously, when a component suspended, the suspended siblings were rendered and then the fallback was committed.
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</Diagram>
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<Diagramname="prewarm"height={162}width={1270}alt="The same diagram as the previous, with the isActive of the first child Panel component highlighted indicating a click with the isActive value set to true. The second Panel component still contains value false." >
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In React 19, when a component suspends, the fallback is committed and then the suspended siblings are rendered.
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</Diagram>
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This change means Suspense fallbacks display faster, while still warming lazy requests in the suspended tree.
React was originally created by [Jordan Walke.](https://github.com/jordwalke) Today, React has a [dedicated full-time team working on it](/community/team), as well as over a thousand [open source contributors.](https://github.com/facebook/react/graphs/contributors)
Dan は Microsoft PowerPoint の中に偶然 Visual Basic を発見したことからプログラミングを始めました。[Sebastian](#sebastian-markbåge) のツイートを長文のブログ投稿に翻訳することが真の使命であると感じています。Fortnite では、ゲームが終わるまで茂みの中に隠れて勝利することがあります。
Dan got into programming after he accidentally discovered Visual Basic inside Microsoft PowerPoint. He has found his true calling in turning [Sebastian](#sebastian-markbåge)'s tweets into long-form blog posts. Dan occasionally wins at Fortnite by hiding in a bush until the game ends.
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>>>>>>> 84f29eb20af17e9c154b9ad71c21af4c9171e4a2
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</TeamMember>
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<TeamMembername="Eli White"permalink="eli-white"photo="/images/team/eli-white.jpg"github="TheSavior"twitter="Eli_White"threads="elicwhite"title="Engineering Manager at Meta">
Joe は数学と哲学を専攻する予定でしたが、Matlab で物理シミュレーションを書いたことからコンピュータサイエンスに興味を持ちました。React に取り組む前は、Relay、RSocket.js、Skip プログラミング言語などに取り組んでいました。何かしらのリアクティブシステムを構築する傍らでは、ランニングをしたり、日本語を勉強したり、家族と過ごしたりしています。
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</TeamMember>
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<<<<<<< HEAD
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<TeamMembername="Josh Story"permalink="josh-story"photo="/images/team/josh.jpg"github="gnoff"twitter="joshcstory"title="Engineer at Vercel">
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Josh は大学で数学を専攻し、そこでプログラミングに出会いました。プロ開発者としての最初の仕事は、リアクティブプログラミングのお手本たる Microsoft Excel で保険料計算プログラムを書くことであり、きっとそれが今 React に取り組んでいる理由なのでしょう。その間 Josh はいくつかのスタートアップで IC、マネージャー、エグゼクティブも務めてきました。仕事以外では、料理で自分の限界に挑戦することが好きです。
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</TeamMember>
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<TeamMembername="Lauren Tan"permalink="lauren-tan"photo="/images/team/lauren.jpg"github="poteto"twitter="potetotes"threads="potetotes"personal="no.lol"title="Engineer at Meta">
<TeamMembername="Josh Story"permalink="josh-story"photo="/images/team/josh.jpg"github="gnoff"bsky="storyhb.com"title="Engineer at Vercel">
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Josh majored in Mathematics and discovered programming while in college. His first professional developer job was to program insurance rate calculations in Microsoft Excel, the paragon of Reactive Programming which must be why he now works on React. In between that time Josh has been an IC, Manager, and Executive at a few startups. outside of work he likes to push his limits with cooking.
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</TeamMember>
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<TeamMembername="Lauren Tan"permalink="lauren-tan"photo="/images/team/lauren.jpg"github="poteto"twitter="potetotes"threads="potetotes"bsky="no.lol"title="Engineer at Meta">
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Lauren's programming career peaked when she first discovered the `<marquee>` tag. She’s been chasing that high ever since. She studied Finance instead of CS in college, so she learned to code using Excel instead of Java. Lauren enjoys dropping cheeky memes in chat, playing video games with her partner, and petting her dog Zelda.
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>>>>>>> 84f29eb20af17e9c154b9ad71c21af4c9171e4a2
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</TeamMember>
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<TeamMembername="Luna Wei"permalink="luna-wei"photo="/images/team/luna-wei.jpg"github="lunaleaps"twitter="lunaleaps"threads="lunaleaps"title="Engineer at Meta">
<TeamMembername="Rick Hanlon"permalink="rick-hanlon"photo="/images/team/rickhanlonii.jpg"github="rickhanlonii"twitter="rickhanlonii"threads="rickhanlonii"personal="rickhanlon.codes"title="Engineer at Meta">
<TeamMembername="Rick Hanlon"permalink="rick-hanlon"photo="/images/team/rickhanlonii.jpg"github="rickhanlonii"twitter="rickhanlonii"threads="rickhanlonii"bsky="ricky.fm"title="Engineer at Meta">
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Ricky majored in theoretical math and somehow found himself on the React Native team for a couple years before joining the React team. When he's not programming you can find him snowboarding, biking, climbing, golfing, or closing GitHub issues that do not match the issue template.
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</TeamMember>
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<TeamMembername="Ruslan Lesiutin"permalink="ruslan-lesiutin"photo="/images/team/lesiutin.jpg"github="hoxyq"twitter="ruslanlesiutin"threads="lesiutin"title="Engineer at Meta">
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