Is there a bug in tailwindcss 4.0.0?

@apply with custom utility does not resolve in nested scopes Using @apply with a custom utility inside an :is() or :where() selector silently dropped the apply. Fixed in 4.0.1. Fixed in tailwindcss 4.0.1.

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tailwindcss known bugs

npm

1 known bug in tailwindcss, with affected versions, fixes and workarounds. Sourced from upstream issue trackers.

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bugs

Known bugs

Severity	Affected	Fixed in	Title	Status	Source
medium	4.0.0	4.0.1	@apply with custom utility does not resolve in nested scopes Using @apply with a custom utility inside an :is() or :where() selector silently dropped the apply. Fixed in 4.0.1.	closed	github:#15234

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