tailwindcss 4.3.1 release notes

4.3.1

Remove deprecation warnings by using Module#registerHooks instead of Module#register on Node 26+ (#20028)
Canonicalization: don't crash when plugin utilities throw for unsupported values (#20052)
Allow @apply to be used with CSS mixins (#19427)
Ensure not-* correctly negates @container queries, including style(…) queries (#20059)
Ensure drop-shadow-* color utilities work with custom shadow values containing calc(…) (#20080)
Fix 'Sourcemap is likely to be incorrect' warnings when using @tailwindcss/vite (#20103)
Ensure @tailwindcss/webpack can be installed in Rspack projects without requiring webpack as a peer dependency (#20027)
Canonicalization: don't suggest invalid calc(…) expressions (e.g. px-[calc(1rem+0px)] → px-[calc(1rem+0)]) (#20127)
Canonicalization: avoid suggesting large spacing-scale values for arbitrary lengths (e.g. left-[99999px] → left-[99999px], not left-24999.75) (#20130)
Ensure @tailwindcss/cli in --watch mode recovers when a tracked dependency is deleted and restored (#20137)
Ensure standalone @tailwindcss/cli binaries are ignored when scanning for class candidates ()

Remove deprecation warnings by using Module#registerHooks instead of Module#register on Node 26+ (#20028)
Canonicalization: don't crash when plugin utilities throw for unsupported values (#20052)
Allow @apply to be used with CSS mixins (#19427)
Ensure not-* correctly negates @container queries, including style(…) queries (#20059)
Ensure drop-shadow-* color utilities work with custom shadow values containing calc(…) (#20080)
Fix 'Sourcemap is likely to be incorrect' warnings when using @tailwindcss/vite (#20103)
Ensure @tailwindcss/webpack can be installed in Rspack projects without requiring webpack as a peer dependency (#20027)
Canonicalization: don't suggest invalid calc(…) expressions (e.g. px-[calc(1rem+0px)] → px-[calc(1rem+0)]) (#20127)
Canonicalization: avoid suggesting large spacing-scale values for arbitrary lengths (e.g. left-[99999px] → left-[99999px], not left-24999.75) (#20130)
Ensure @tailwindcss/cli in --watch mode recovers when a tracked dependency is deleted and restored (#20137)
Ensure standalone @tailwindcss/cli binaries are ignored when scanning for class candidates ()