tailwindlabs/tailwindcss
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3 days ago
tailwindcss

v4.2.1

Fixed

  • Allow trailing dash in functional utility names for backwards compatibility (#19696)
  • Properly detect classes containing . characters within curly braces in MDX files (#19711)
8 days ago
tailwindcss

v4.2.0

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 (#19610)
  • Add pbs-* and pbe-* utilities for padding-block-start and padding-block-end (#19601)
  • Add mbs-* and mbe-* utilities for margin-block-start and margin-block-end (#19601)
  • Add scroll-pbs-* and scroll-pbe-* utilities for scroll-padding-block-start and scroll-padding-block-end (#19601)
  • Add scroll-mbs-* and scroll-mbe-* utilities for scroll-margin-block-start and scroll-margin-block-end (#19601)
  • Add border-bs-* and border-be-* utilities for border-block-start and border-block-end (#19601)
  • Add inline-*, min-inline-*, max-inline-* utilities for inline-size, min-inline-size, and max-inline-size (#19612)
  • Add block-*, min-block-*, max-block-* utilities for block-size, min-block-size, and max-block-size (#19612)
  • Add inset-s-*, inset-e-*, inset-bs-*, inset-be-* utilities for inset-inline-start, inset-inline-end, inset-block-start, and inset-block-end (#19613)
  • Add font-features-* utility for font-feature-settings (#19623)

Fixed

  • Prevent double @supports wrapper for color-mix values (#19450)
  • Allow whitespace around @source inline() argument (#19461)
  • Emit comment when source maps are saved to files when using @tailwindcss/cli (#19447)
  • Detect utilities containing capital letters followed by numbers (#19465)
  • Fix class extraction for Rails' strict locals (#19525)
  • Align @utility name validation with Oxide scanner rules (#19524)
  • Fix infinite loop when using @variant inside @custom-variant (#19633)
  • Allow multiples of .25 in aspect-* fractions (e.g. aspect-8.5/11) (#19688)
  • Ensure changes to external files listed via @source trigger a full page reload when using @tailwindcss/vite (#19670)
  • Improve performance of Oxide scanner in bigger projects by reducing file system walks (#19632)
  • Ensure import aliases in Astro v5 work without crashing when using @tailwindcss/vite (#19677)
  • Allow escape characters in @utility names to improve support with formatters such as Biome (#19626)
  • Fix incorrect canonicalization results when canonicalizing multiple times (#19675)
  • Add .jj to default ignored content directories (#19687)

Deprecated

  • Deprecate start-* and end-* utilities in favor of inline-s-* and inline-e-* utilities (#19613)
2025-12-12 00:03:32
tailwindcss

v4.1.18

Fixed

  • Ensure validation of source(…) happens relative to the file it is in (#19274)
  • Include filename and line numbers in CSS parse errors (#19282)
  • Skip comments in Ruby files when checking for class names (#19243)
  • Skip over arbitrary property utilities with a top-level ! in the value (#19243)
  • Support environment API in @tailwindcss/vite (#18970)
  • Preserve case of theme keys from JS configs and plugins (#19337)
  • Write source maps correctly on the CLI when using --watch (#19373)
  • Handle special defaults (like ringColor.DEFAULT) in JS configs (#19348)
  • Improve backwards compatibility for content theme key from JS configs (#19381)
  • Upgrade: Handle future and experimental config keys (#19344)
  • Try to canonicalize any arbitrary utility to a bare value (#19379)
  • Validate candidates similarly to Oxide (#19397)
  • Canonicalization: combine text-* and leading-* classes (#19396)
  • Correctly handle duplicate CLI arguments (#19416)
  • Don’t emit color-mix fallback rules inside @keyframes (#19419)
  • CLI: Don't hang when output is /dev/stdout (#19421)
2025-12-11 00:00:34
tailwindcss

v3.4.19

Fixed

  • Don’t break sibling-*() functions when used inside calc(…) (#19335)
2025-11-06 23:20:36
tailwindcss

v4.1.17

Fixed

  • Substitute @variant inside legacy JS APIs (#19263)
  • Prevent occasional crash on Windows when loaded into a worker thread (#19242)
2025-10-23 18:32:27
tailwindcss

v4.1.16

Fixed

  • Discard candidates with an empty data type (#19172)
  • Fix canonicalization of arbitrary variants with attribute selectors (#19176)
  • Fix invalid colors due to nested & (#19184)
  • Improve canonicalization for & > :pseudo and & :pseudo arbitrary variants (#19178)
2025-10-20 20:48:42
tailwindcss

v4.1.15

Fixed

  • Fix Safari devtools rendering issue due to color-mix fallback (#19069)
  • Suppress Lightning CSS warnings about :deep, :slotted, and :global (#19094)
  • Fix resolving theme keys when starting with the name of another theme key in JS configs and plugins (#19097)
  • Allow named groups in combination with not-*, has-*, and in-* (#19100)
  • Prevent important utilities from affecting other utilities (#19110)
  • Don’t index into strings with the theme(…) function (#19111)
  • Fix parsing issue when \t is used in at-rules (#19130)
  • Upgrade: Canonicalize utilities containing 0 values (#19095)
  • Upgrade: Migrate deprecated break-words to wrap-break-word (#19157)

Changed

  • Remove the postinstall script from oxide (#19149)
2025-10-01 23:48:02
tailwindcss

v4.1.14

Fixed

  • Handle ' syntax in ClojureScript when extracting classes (#18888)
  • Handle @variant inside @custom-variant (#18885)
  • Merge suggestions when using @utility (#18900)
  • Ensure that file system watchers created when using the CLI are always cleaned up (#18905)
  • Do not generate grid-column utilities when configuring grid-column-start or grid-column-end (#18907)
  • Do not generate grid-row utilities when configuring grid-row-start or grid-row-end (#18907)
  • Prevent duplicate CSS when overwriting a static utility with a theme key (#18056)
  • Show Lightning CSS warnings (if any) when optimizing/minifying (#18918)
  • Use default export condition for @tailwindcss/vite (#18948)
  • Re-throw errors from PostCSS nodes (#18373)
  • Detect classes in markdown inline directives (#18967)
  • Ensure files with only @theme produce no output when built (#18979)
  • Support Maud templates when extracting classes (#18988)
  • Upgrade: Do not migrate variant = 'outline' during upgrades (#18922)
  • Upgrade: Show version mismatch (if any) when running upgrade tool (#19028)
  • Upgrade: Ensure first class inside className is migrated (#19031)
  • Upgrade: Migrate classes inside *ClassName and *Class attributes (#19031)
2025-10-01 23:18:15
tailwindcss

v3.4.18

Fixed

  • Improve support for raw supports-[…] queries in arbitrary values (#13605)
  • Fix require.cache error when loaded through a TypeScript file in Node 22.18+ (#18665)
  • Support import.meta.resolve(…) in configs for new enough Node.js versions (#18938)
  • Allow using newer versions of postcss-load-config for better ESM and TypeScript PostCSS config support with the CLI (#18938)
  • Remove irrelevant utility rules when matching important classes (#19030)
2025-09-05 01:18:25
tailwindcss

v4.1.13

Changed

  • Drop warning from browser build (#18731)
  • Drop exact duplicate declarations when emitting CSS (#18809)

Fixed

  • Don't transition visibility when using transition (#18795)
  • Discard matched variants with unknown named values (#18799)
  • Discard matched variants with non-string values (#18799)
  • Show suggestions for known matchVariant values (#18798)
  • Replace deprecated clip with clip-path in sr-only (#18769)
  • Hide internal fields from completions in matchUtilities (#18820)
  • Ignore .vercel folders by default (can be overridden by @source … rules) (#18855)
  • Consider variants starting with @- to be invalid (e.g. @-2xl:flex) (#18869)
  • Do not allow custom variants to start or end with a - or _ (#18867, #18872)
  • Upgrade: Migrate aria theme keys to @custom-variant (#18815)
  • Upgrade: Migrate data theme keys to @custom-variant (#18816)
  • Upgrade: Migrate supports theme keys to @custom-variant (#18817)