React Daily: DevTools Ships Version 8, Flight Client Fixes a Deadlock
React DevTools jumps to a major version 8.0.0 while a new CDT MCP package works through its first publish pains, and a subtle React Flight bug involving cyclic references got a careful fix. Separately, the rust compiler and DOM form status handling picked up correctness fixes.
Duration: PT2M32S
Episode overview
This episode is a short developer briefing from React Daily.
It explains recent repository work in plain language.
- Show: React Daily
- Published: 2026-09-09T06:00:42Z
- Audio duration: PT2M32S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
It's September 9th, 2026, and this is React Daily.
Today's biggest signal is release engineering. React DevTools is moving to a major version, and a brand-new package is learning to publish correctly in public for the first time.
Start with DevTools 8.0.0, shipped in commit e-9-2-b-d-a-7 and PR 37546. This is a manual major bump, since the existing release script only handles minor and patch versions. Worth remembering if you're touching DevTools release tooling: automation coverage stops at major versions.
Then there's react-devtools-cdt-mcp, a new package getting its first real npm publish workflow. PR 37500 bumped it off a placeholder version, PR 37498 added a dedicated, security-hardened publish workflow using OIDC trusted publishing instead of a stored token. But PR 37547 caught a real problem: npm 11 dropped…
Second theme: correctness fixes in tricky corners of the runtime. Commit 6c0e104, backing PR 37542, fixes a real deadlock-adjacent bug in React Flight. When a row is still parsing and hands out a partial value to listeners, only some of those listeners are genuine cyclic references. The old code treated all of them…
Smaller but notable: the rust compiler's integer…