TailwindCSS: Stale Dev Builds Fixed, Platform Repairs
A fix for Turbopack and Webpack loaders serving stale CSS after edits leads the day, with related repairs for Firefox custom variants and macOS binaries. The pattern is reliability across local development and shipped builds.
Duration: PT2M17S
Episode overview
This episode is a short developer briefing from TailwindCSS.
It explains recent repository work in plain language.
- Show: TailwindCSS
- Published: 2026-10-16T13:06:28Z
- Audio duration: PT2M17S
Transcript excerpt
This excerpt keeps the crawler page concise. Listen to the episode or use the RSS feed for the full update.
Good morning, it's Friday, October 16th, 2026, and this is your Tailwind C S S briefing.
The headline is development reliability: a fix for dev servers that kept serving old CSS after you saved.
That stale-build bug affected the Turbopack and Webpack loaders, reported in issue 20581 and fixed in pull request 20582. The loaders cached a compiler per CSS file and only rebuilt fully when the modification time changed. After a save, Turbopack could invoke the loader twice — first with old content but new…
A second theme is platform-specific breakage. Pull request 20486 restores Firefox custom variants using legacy Mozilla and Webkit matching functions. The selector parser treated those as opaque values, so the nesting placeholder inside could not be replaced, producing the wrong selector. They are now parsed like the…
Finally, some maintenance. Pull request 20579 fixes out-of-memory failures in macOS continuous integration by keeping only the 32 most recently used design systems in tests, staying under the runner memory limit. An open proposal, pull request 20580, would round constant-folded numbers to remove floating-point noise.
Watch for that rounding proposal to merge, and for the…
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