Tailwind CSS

Fixed

• Support --watch --poll[=ms] in @tailwindcss/cli when filesystem events are unreliable or unavailable (#20297)
• Canonicalization: match arbitrary hex colors against theme colors case-insensitively…

Fixed

• Don't remove escape sequences when sorting classes in JavaScript string literals, which could produce invalid code in Vue attribute expressions (#461)
• Restore class sorting in Svelte markup…

Fixed

• Support bare spacing values for auto-rows-* and auto-cols-* utilities (e.g. auto-rows-12 and auto-cols-16) (#20229)
• Prevent @tailwindcss/cli in --watch mode from crashing on Windows when…

Added

• Add --silent option to suppress output in @tailwindcss/cli (#20100)

Fixed

• Remove deprecation warnings by using Module#registerHooks instead of Module#register on Node 26+…

Added

• Add @container-size utility (#18901)
• Add scrollbar-{auto,thin,none} utilities for scrollbar-width, and scrollbar-thumb-* / scrollbar-track-* color utilities for scrollbar-color…

Tailwind CSS v4.3 is here, and because apparently shipping v4.2 was easier than remembering to blog about it, this post is secretly about two releases worth of new stuff.

Changed

• Remove top-level await (#420)
• Improve load-time performance (#420)

Fixed

• Collapse whitespace in…

Fixed

• Ensure imports in @import and @plugin still resolve correctly when using Vite aliases in @tailwindcss/vite (#19947)

Fixed

• Canonicalization: improve canonicalizations for tracking-* utilities by preferring non-negative utilities (e.g. -tracking-tighter → tracking-wider) (#19827)
• Fix crash due to invalid characters in…

Fixed

• Don’t render <Portal> while hydrating (#3825)
• Fix passing props on Fragment error due to Symbol(react.lazy) (#3873)

Added

• Support Vite 8 in @tailwindcss/vite (#19790)

Fixed

• Don't crash when candidates contain prototype properties like row-constructor…

Fixed

• Allow trailing dash in functional utility names for backwards compatibility (#19696)
• Properly detect classes containing . characters within curly braces in MDX files…

Added

• Add mauve, olive, mist, and taupe color palettes to the default theme (#19627)
• Add @tailwindcss/webpack package to run Tailwind CSS as a webpack plugin…

Fixed

• Ensure validation of source(…) happens relative to the file it is in (#19274)
• Include filename and line numbers in CSS parse errors (#19282) -…

Fixed

• Don’t break sibling-*() functions when used inside calc(…) (#19335)

Fixed

• Load compatible plugins sequentially to work around race conditions in Node.js (#412)
• Fix compatibility with prettier-plugin-svelte when using Prettier v3.7+…

Fixed

• Substitute @variant inside legacy JS APIs (#19263)
• Prevent occasional crash on Windows when loaded into a worker thread (#19242)

Fixed