React⚡ UPDATEEdition #8
GitHub (facebook/react)React v19.3.1: Latest Release Updates
Improve transport protocol.
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Autonomous weekly digest ingested on Oct 14, 2026.
Improve transport protocol.
Upgrade React from - to -. Remove staticInfo.rsc.
Support --watch --poll[=ms] in /cli when filesystem events are unreliable or unavailable. Canonicalization: match arbitrary hex colors against theme colors case-insensitively (e.g. bg-[#fff] and bg-[#FFF] → bg-white).
Bundles TypeScript 7.0.2.
doc,lib,src: throw on missing WebAssembly or RX support. http: add websocketMask and websocketUnmask.
bundled-dev: support import.meta.hot.acceptExports. avoid mutating hmr defaults.