TMiR 2025-07: Vercel shakeups, new React Compiler docs

New Releases RN Reanimated v4 RN Ignite toolkit v11 Main Content Compiler docs are merged! (live docs, and config API) Expo docs say it’s “on hold”, but Evan Bacon says Expo 54 may enable the Compiler by default Oh no — more function directives , “use memo” and “use no memo” DIRECTIVES Good thread on some history Some tech discussion on the complexities of making React Compiler work with Oxlint Directive prologues and JavaScript dark matter Node API Support for React Native Vercel shaking things up Leerob is at Cursor now — Five Things [he] Learned at Vercel SWC creator leaves, focusing on SWC for a while Sam Selikoff just joined to do content and stuff Nuxt acquired Netlify Staff Eng Philippe Serhal replies to the Vercel Deployment Adapters RFC from April Ryan Carniato’s “react and signals” React Native Unistyles 3.0 Released React Router and RSCs: The Path Forward Parcel writeup for Server Components WIP Vite RSC plugin support ⚡ Lightning round ⚡ Corbin’s “History of React Through Code” deep dive TkDodo’s thoughts on when useCallback is useless eslint-config-prettier compromised as part of an NPM supply chain attack Expo Router demo by Evan Bacon AI + RSCs + Expo Router Some tech details on how Meta serves React pages Nitro Image library for React Native A very hacky way to test RSC components A good technical dive into improving INP in a Next app Extra CSS Properties in React Native Chrome 137 adds if support in CSS React Devtools for Firefox may not get updated due to review restrictions Both oxlint and biome are investigating typed lint rule support (Biome v2, tsgolint) Remix v3 dev branch containing support packages React Native Wallet Deno v Oracle update “Content independence day” from Cloudflare (they’re blocking AI crawlers) Some updated Static Hermes perf numbers release available “soon”, being tested internally at Meta State of HTML Survey is open Conferences (React, Javascript) Big Sky Dev Con Aug 2 Bozeman, MT, USA Kansas City Developer Conference Aug 13-14 Kansas City, KS, USA React Universe Conf Sept 2-4, 2025. Wrocław, Poland WaysConf Sept 16-17 CascadiaJS Sept 18-19 Seattle, WA, USA Squiggle Conf Sept 17-18 Boston, MA, USA React Conf is back, Oct 7-8 Remix Jam Oct 10 Toronto, Canada (00:00) - This Month in React July Episode - SM (01:17) - New Releases (01:20) - [RN Reanimated v4](https://blog.swmansion.com/reanimated-4-stable-release-the-future-of-react-native-animations-ba68210c3713) (08:46) - [RN Ignite toolkit v11](https://shift.infinite.red/announcing-ignite-11-bison-f2802a85f94d) (10:18) - Main Content (10:21) - [Compiler docs are merged!](https://github.com/reactjs/react.dev/pull/7868) ([live docs](https://react.dev/learn/react-compiler/introduction), and [config API](https://react.dev/reference/react-compiler/configuration)) (11:42) - [Expo docs](https://docs.expo.dev/guides/react-compiler/) say it’s “on hold”, but Evan Bacon says [Expo 54 may enable the Compiler by default](https://x.com/Baconbrix/status/1949714155482841094) (12:45) - Oh no — [more function directives](https://react.dev/learn/react-compiler/incremental-adoption) , “use memo” and “use no memo” (12:51) - [DIRECTIVES](https://macwright.com/2025/04/29/directive-prologues-and-javascript-dark-matter) (13:13) - [Good thread on some history](https://x.com/en_JS/status/1948502925468467369) (14:19) - Some tech discussion on [the complexities of making React Compiler work with Oxlint](https://github.com/oxc-project/oxc/issues/10048) (15:41) - [Directive prologues and JavaScript dark matter](https://macwright.com/2025/04/29/directive-prologues-and-javascript-dark-matter)...