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Posts by This Month in React

Delegates of TC39 in Google's Chelsea Market office

Delegates of TC39 in Google's Chelsea Market office

ECMAScript excitement πŸ˜‰

This week in NY @tc39.es advanced these proposals πŸŽ‰

4⃣ Intl Era/Month Code
4⃣ Temporal
3⃣ Import Text
2⃣.7⃣ Error Stack Accessor
2⃣.7⃣ Iterator Includes
2⃣ Intl Unit Protocol
2⃣ Thenable Curtailment
1⃣ Error Code Property
πŸ—‘οΈ Dynamic Import Host Adjustment

4 weeks ago 34 5 2 0
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Temporal: The 9-Year Journey to Fix Time in JavaScript JavaScript's Date object has been a source of bugs for three decades. Temporal, which just reached Stage 4, is a modern replacement with immutable types, first-class time zone and calendar support...

The nine-year story of Temporal is here 🎈

bloomberg.github.io/js-blog/post...

4 weeks ago 4 1 1 0

Great discussions again this month! We looked at the release of Vinext and what that means, and has a pretty long sidebar on how AI tooling is affecting the industry

1 month ago 5 2 0 0
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TMiR 2026-02: CloudFlare remakes Next with AI; Vercel big mad. We talk too much about AI Agents Transcript and links

TMiR 2026-02: CloudFlare remakes Next with AI; Vercel big mad. We talk too much about AI Agents

1 month ago 6 1 0 1
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TMiR 2026-01: Oops more CVEs. AI has React "skills", Astro exits and Tailwind struggles Full transcript and links

TMiR 2026-01: Oops more CVEs. AI has React "skills", Astro exits and Tailwind struggles

2 months ago 1 1 0 0
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TMiR 2025-12: Year in review, React2Shell (RCE, DOS, SCE, oh my) Main ContentReact2Shell vulnerabilityInitial announcementFollowup...

TMiR 2025-12: Year in review, React2Shell (RCE, DOS, SCE, oh my)

3 months ago 2 1 0 1

We'll be going live in @reactiflux.com around 12:30 ET for December's "This Month in React" ( @tmir.reactiflux.com ), where Carl, Mo, and I will be breaking down the "React2Shell" RSC vulnerability - what happened, why, impact, and more. Also looking at the ecosystem and year in review.

Join us!

3 months ago 5 1 1 1

Researchers have found two new vulnerabilities in React Server Components while attempting to exploit the patches last week.

These are new issues, separate from the critical CVE last week. The patch for React2Shell remains effective for the Remote Code Execution exploit.

3 months ago 175 71 2 26

A great technical analysis github.com/ejpir/CVE-20...

4 months ago 1 0 1 0
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Critical Security Vulnerability in React Server Components – React The library for web and native user interfaces

There is critical vulnerability in React Server Components disclosed as CVE-2025-55182 that impacts React 19 and frameworks that use it.

A fix has been published in React versions 19.0.1, 19.1.2, and 19.2.1. We recommend upgrading immediately.

react.dev/blog/2025/12...

4 months ago 142 91 7 16
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TMiR 2025-11: Cloudflare outage, ongoing npm hacks, React Router is getting RSCs Transcript and show notesTMiR on Bluesky[00:13] Intro[01:00] New...

TMiR 2025-11: Cloudflare outage, ongoing npm hacks, React Router is getting RSCs

4 months ago 3 0 0 1

NΓ£o tem jeito, toda vez que ouΓ§o o @tmir.reactiflux.com saio completamente HYPADO

4 months ago 2 1 0 0
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TMiR 2025-10: Post-conf; React 19.2, React Foundation, React Native removing old architecture. Next.js has too many directives Transcript and article links[00:00:00] Intro[00:00:46] New...

TMiR 2025-10: Post-conf; React 19.2, React Foundation, React Native removing old architecture. Next.js has too many directives

5 months ago 5 1 1 1
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Celebrating the Launch of the React Foundation | OpenJS Foundation A New Era for React, and a Stronger JavaScript Ecosystem

New Era for React = Stronger JavaScript Ecosystem πŸ’™

React doesn’t live in isolation - It works alongside Node.js, Electron, webpack, and more. A dedicated foundation under the Linux Foundation means more collaboration, security, and sustainability across the ecosystem.

hubs.la/Q03MylxX0

6 months ago 44 19 0 3
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How to enable Hermes v1: reactnative.dev/blog/2025/10...

6 months ago 2 0 0 0
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Building off "static Hermes", avg improvement of 60% over current Hermes. Tested in the wild with Expensify, on high- and low-end devices

6 months ago 1 0 1 0
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Hermes v1!

6 months ago 1 0 1 0

New architecture shipped as default 1 year ago, October 2024. Stopped supporting old architecture in May 2025. Today, from 0.82, they're removing the old architecture completely!

6 months ago 1 0 1 0

"new architecture started in 2018" when's the last time you shipped something you worked on for > 5 years

6 months ago 1 0 1 0
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Aha: DevTools are 0.83, planned for later this year. With the recent release cadence, I tend to believe them. DOM APIs are still pretty big, if they dropped all of this today at once I'd be a bit shocked

6 months ago 1 0 1 0
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Y'all this is not a drill, there is a network panel!!! Genuine web parity tbh

6 months ago 1 0 1 0
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"investing in performance" yada yada. Traces and flamegraphs are massive tho

6 months ago 1 0 1 0
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Talk about DevTools. Perf panel!!!

6 months ago 1 0 1 0

This is the real keynote tbh. This is officially React Native Conf

6 months ago 1 0 1 0
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Web performance APIs too???

6 months ago 1 0 1 0
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New docs! reactnative.dev/docs/element...

6 months ago 1 0 1 0
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This Month in React, August 2024: Matt Pocock taught us to make modules, RN is faster, iterator helpers are cool, JSR/Deno going sour This Month in React, August 2024: Matt Pocock taught us to make modules, RN is faster, iterator helpers are cool, JSR/Deno going sour | Q&A from 2024-08-27 Join Carl Vitullo, Mark Erikson, and Mo Kha...

We talked about this last August! Cool! www.reactiflux.com/transcripts/...

6 months ago 2 0 1 0
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Web APIs new in 0.82???

6 months ago 3 2 1 0
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6 months ago 1 0 1 0

"React Native is moving from being inspired by the web, to being aligned with it"

6 months ago 2 0 1 0