Improving responsiveness with React 19.2

Plus the fallout from the RSC vulnerability, the Remix Store gets open sourced, and TanStack drops another new library. |

#​455 — December 10, 2025 Read on the Web 🗓️ A quick notice that React Status will be moving to Fridays in January 2026. We still have one more week before the Christmas break, though: we'll be back next Wednesday with our 2025 roundup! __ Your editor, Peter Cooper Together with   React Status React Grab: A React-Focused Tool for Agentic Development — Aiden is well known for his React Scan tool for detecting performance issues in React apps — now he's turned his hand to giving coding agents React superpowers. It lets you "grab" context from your app's components to feed to an agent of your choice for making detailed changes. Aiden Bai and Ben Maclaurin How React 19.2 Further Advances INP Optimization — Interaction to Next Paint (INP) is a performance metric measuring a page's responsiveness to user interactions, and React 19.2 offers a few new mechanisms for both improving responsiveness and debugging related problems. Michal Matuška 💡 The above post is part of this year's Web Performance Calendar, an Advent calendar that's always packed with great posts. Prototype AI-Powered React Apps Instantly with Agentic Postgres — A Postgres built for rapid iteration: vector search, forks, PITR—free forever for developers + agents. Tiger Data sponsor ⚠️ The React2Shell (CVE-2025-55182) Vulnerability — Just an hour before we sent React Status last week, the React team disclosed a critical security vulnerability in React Server Components. A week on, the repercussions continue to be felt with the vulnerability now dubbed 'React2Shell'. Vercel has more detailed information for Next.js users here. Lachlan Davidson 💡 A curious consequence of the above vulnerability is that in an attempt to protect its customers from it, Cloudflare's mitigation led to another issue that caused about 25 minutes of downtime. 📄 Building a Monorepo-Based Next.js App with Prisma – Unifying the data model between the front- and back-end. Camilo Reyes 📄 Next.js Image Optimization with the next/image Component Jakub Andrzejewski 📄 Some Do's and Don'ts of useEffectEvent Slicker 🛠  Code, Tools & Libraries React Grid Layout 2.0: A Flexible Grid Layout System — A responsive grid layout system, a la Packery or Gridster, for use cases where CSS grid might not check all your boxes. GitHub repo. Samuel Reed Introducing fate: A Modern Data Client for React and tRPC — "fate is designed to make data fetching and state management in React applications more composable, declarative, and predictable. The framework has a minimal API, no DSL, and no magic – it's just JavaScript." Christoph Nakazawa Tuple - The Fastest Way to Review AI Slop — Wasting hours debugging AI code? Tuple brings your team together to figure it out, clean it up, and ship. Tuple sponsor 🤖 TanStack AI: A Unified Interface for LLM/AI Providers — The latest member of the TanStack family of libraries offers a unified, framework-agnostic interface to multiple AI APIs, complete with streaming, and Zod schema inference. While it's agnostic, React is clearly the default choice and the getting started tutorial covers building a chat app with its React integration. TanStack Open Sourcing the Remix Store — The Remix Store is a swag store for the Remix project and its codebase is a great demonstration of how Remix's own core team builds an app on top of Remix and Hydrogen. As they say, "we hope to benefit developers building with React Router as well as developers building Shopify stores." Brooks Lybrand and the Remix Team 📅 React Datepicker 9.0: A Simple Date Picker Component — The popular date picker gets a special holiday release with timezone support, the ability to select times across date ranges, and a handful of new props for extra customization and accessibility. HackerOne Yet Another React Lightbox 3.27 – Modern React lightbox component. Ant Design 6.1 – Popular component suite and design language. 🌐 react-geo v32.7.0 – Components to build mapping applications. Jotai 2.16 – Primitive, flexible state management. 📢  Elsewhere in the ecosystem Some other interesting stories in the broader landscape: 🔒 GitHub shares an update on its npm token policies. All npm classic tokens have been revoked this week and there's a new process for getting a two hour session token or a granular access token instead. The team at DebugBear has a review of web performance topics in 2025, including DevTools enhancements, changes to how TTFB, LCP, and INP are measured, and Firefox's support for the Scheduler API. ✏️ Looking for some blogging inspiration over the holidays? Frontend Masters shares a long list of ideas and will even pay guest writers if you need somewhere to publish your work. 🎧 Microsoft has launched a VS Code Insiders podcast where the VS Code team gets to go "beyond the release notes" and talk about VS Code's features and ecosystem. Gleb Bahmutov has been publishing a daily Cypress vs Playwright advent calendar this month. Oxlint introduces type-aware linting in alpha.

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