---
name: Tailwind CSS
slug: tailwind-css
type: github
source_url: https://github.com/tailwindlabs/tailwindcss
changelog_url: https://github.com/tailwindlabs/tailwindcss/blob/HEAD/CHANGELOG.md
organization: Tailwind CSS
organization_slug: tailwind-css
total_releases: 153
latest_version: v4.3.1
latest_date: 2026-06-12
last_updated: 2026-06-23
tracking_since: 2020-10-07
canonical: https://releases.sh/tailwind-css/tailwind-css
organization_url: https://releases.sh/tailwind-css
---

<Summary type="rolling" window-days="90" release-count="3">
Tailwind CSS stabilized its v4 engine while expanding logical property support and build tooling options. Version 4.2.0 introduced new color palettes (mauve, olive, mist, taupe) and a webpack plugin alongside block-flow spacing utilities (`pbs-*`, `mbe-*`, etc.), while subsequent releases hardened canonicalization logic to handle edge cases like prototype property names and `@property` at-rules in utilities, plus improved Vite 8 compatibility and MDX class detection.
</Summary>

<Summary type="monthly" period="February 2026" release-count="2">
Expanded logical property coverage with block-start and block-end utilities across padding, margin, scroll positioning, and borders, while introducing four new neutral color palettes and a webpack integration plugin. A patch follow-up fixed trailing dash compatibility in functional utilities and improved MDX class detection with dot characters.
</Summary>

<Release version="v4.3.1" date="June 12, 2026" published="2026-06-12T17:50:58.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.3.1">
### Added

- Add `--silent` option to suppress output in `@tailwindcss/cli` ([#20100](https://github.com/tailwindlabs/tailwindcss/pull/20100))

### Fixed

- Remove deprecation warnings by using `Module#registerHooks` instead of `Module#register` on Node 26+ ([#20028](https://github.com/tailwindlabs/tailwindcss/pull/20028))
- Canonicalization: don't crash when plugin utilities throw for unsupported values ([#20052](https://github.com/tailwindlabs/tailwindcss/pull/20052))
- Allow `@apply` to be used with CSS mixins ([#19427](https://github.com/tailwindlabs/tailwindcss/pull/19427))
- Ensure `not-*` correctly negates `@container` queries, including `style(…)` queries ([#20059](https://github.com/tailwindlabs/tailwindcss/pull/20059))
- Ensure `drop-shadow-*` color utilities work with custom shadow values containing `calc(…)` ([#20080](https://github.com/tailwindlabs/tailwindcss/pull/20080))
- Fix 'Sourcemap is likely to be incorrect' warnings when using `@tailwindcss/vite` ([#20103](https://github.com/tailwindlabs/tailwindcss/pull/20103))
- Ensure `@tailwindcss/webpack` can be installed in Rspack projects without requiring `webpack` as a peer dependency ([#20027](https://github.com/tailwindlabs/tailwindcss/pull/20027))
- Canonicalization: don't suggest invalid `calc(…)` expressions (e.g. `px-[calc(1rem+0px)]` → `px-[calc(1rem+0)]`) ([#20127](https://github.com/tailwindlabs/tailwindcss/pull/20127))
- Canonicalization: avoid suggesting large spacing-scale values for arbitrary lengths (e.g. `left-[99999px]` → `left-[99999px]`, not `left-24999.75`) ([#20130](https://github.com/tailwindlabs/tailwindcss/pull/20130))
- Ensure `@tailwindcss/cli` in `--watch` mode recovers when a tracked dependency is deleted and restored ([#20137](https://github.com/tailwindlabs/tailwindcss/pull/20137))
- Ensure standalone `@tailwindcss/cli` binaries are ignored when scanning for class candidates ([#20139](https://github.com/tailwindlabs/tailwindcss/pull/20139))
- Ensure class candidates are extracted from Twig `addClass(…)` and `removeClass(…)` calls ([#20198](https://github.com/tailwindlabs/tailwindcss/pull/20198))
- Don't crash in the Ruby or Vue preprocessors when scanning files containing invalid UTF-8 bytes ([#19588](https://github.com/tailwindlabs/tailwindcss/pull/19588))
- Allow `@variant` to be used inside `addBase` ([#19480](https://github.com/tailwindlabs/tailwindcss/pull/19480))
- Ensure `@source` globs with symlinks are preserved ([#20203](https://github.com/tailwindlabs/tailwindcss/pull/20203))
- Ensure later `@source` rules can re-include files excluded by earlier `@source not` rules ([#20203](https://github.com/tailwindlabs/tailwindcss/pull/20203))
- Upgrade: don't migrate empty class rules to invalid `@utility` rules ([#20205](https://github.com/tailwindlabs/tailwindcss/pull/20205))
- Ensure transitions between `inset-shadow-none` and other inset shadows work correctly ([#20208](https://github.com/tailwindlabs/tailwindcss/pull/20208))
- Ensure explicitly referenced `@source` directories are scanned even when ignored by git ([#20214](https://github.com/tailwindlabs/tailwindcss/pull/20214))
- Ensure `@source` globs ending in `**/*` preserve dynamic path segments to avoid scanning too many files ([#20217](https://github.com/tailwindlabs/tailwindcss/pull/20217))
- Canonicalization: don't fold `calc(…)` divisions when the result would require high precision (e.g. `w-[calc(100%/3.5)]` → `w-[calc(100%/3.5)]`, not `w-[28.571428571428573%]`) ([#20221](https://github.com/tailwindlabs/tailwindcss/pull/20221))
- Serve ESM type declarations to ESM importers of `@tailwindcss/postcss` ([#20228](https://github.com/tailwindlabs/tailwindcss/pull/20228))

### Changed

- Generate `0` instead of `calc(var(--spacing) * 0)` for spacing utilities like `m-0` and `left-0` ([#20196](https://github.com/tailwindlabs/tailwindcss/pull/20196))
- Generate `var(--spacing)` instead of `calc(var(--spacing) * 1)` for spacing utilities like `m-1` and `left-1` ([#20196](https://github.com/tailwindlabs/tailwindcss/pull/20196))
</Release>

<Release version="v4.3.0" date="May 8, 2026" published="2026-05-08T20:17:25.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.3.0">
### Added

- Add `@container-size` utility ([#18901](https://github.com/tailwindlabs/tailwindcss/pull/18901))
- Add `scrollbar-{auto,thin,none}` utilities for `scrollbar-width`, and `scrollbar-thumb-*` / `scrollbar-track-*` color utilities for `scrollbar-color` ([#19981](https://github.com/tailwindlabs/tailwindcss/pull/19981), [#20019](https://github.com/tailwindlabs/tailwindcss/pull/20019))
- Add `scrollbar-gutter-*` utilities ([#20018](https://github.com/tailwindlabs/tailwindcss/pull/20018))
- Add `zoom-*` utilities ([#20020](https://github.com/tailwindlabs/tailwindcss/pull/20020))
- Add `tab-*` utilities ([#20022](https://github.com/tailwindlabs/tailwindcss/pull/20022))
- Allow using `@variant` with stacked variants (e.g. `@variant hover:focus { … }`) ([#19996](https://github.com/tailwindlabs/tailwindcss/pull/19996))
- Allow using `@variant` with compound variants (e.g. `@variant hover, focus { … }`) ([#19996](https://github.com/tailwindlabs/tailwindcss/pull/19996))
- Support `--default(…)` in `--value(…)` and `--modifier(…)` for functional `@utility` definitions ([#19989](https://github.com/tailwindlabs/tailwindcss/pull/19989))

### Fixed

- Ensure `@plugin` resolves package JavaScript entries instead of browser CSS entries when using `@tailwindcss/vite` ([#19949](https://github.com/tailwindlabs/tailwindcss/pull/19949))
- Fix relative `@import` and `@plugin` paths resolving from the wrong directory when using `@tailwindcss/vite` ([#19965](https://github.com/tailwindlabs/tailwindcss/pull/19965))
- Ensure CSS files containing `@variant` are processed by `@tailwindcss/vite` ([#19966](https://github.com/tailwindlabs/tailwindcss/pull/19966))
- Resolve imports relative to `base` when `result.opts.from` is not provided when using `@tailwindcss/postcss` ([#19980](https://github.com/tailwindlabs/tailwindcss/pull/19980))
- Canonicalization: preserve significant `_` whitespace in arbitrary values ([#19986](https://github.com/tailwindlabs/tailwindcss/pull/19986))
- Canonicalization: add parentheses when removing whitespace from arbitrary values would hurt readability (e.g. `w-[calc(100%---spacing(60))]` → `w-[calc(100%-(--spacing(60)))]`) ([#19986](https://github.com/tailwindlabs/tailwindcss/pull/19986))
- Canonicalization: preserve the original unit in arbitrary values instead of normalizing to base units (e.g. `-mt-[20in]` → `mt-[-20in]`, not `mt-[-1920px]`) ([#19988](https://github.com/tailwindlabs/tailwindcss/pull/19988))
- Canonicalization: migrate arbitrary `:has()` variants from `[&:has(…)]` to `has-[…]` ([#19991](https://github.com/tailwindlabs/tailwindcss/pull/19991))
- Upgrade: don’t migrate inline `style` attributes (e.g. `style="flex-grow: 1"` → `style="flex-grow: 1"`, not `style="grow: 1"`) ([#19918](https://github.com/tailwindlabs/tailwindcss/pull/19918))
- Allow multiple `@utility` definitions with the same name but different value types ([#19777](https://github.com/tailwindlabs/tailwindcss/pull/19777))
- Export missing `PluginWithConfig` type from `tailwindcss/plugin` to fix errors when inferring plugin config types ([#19707](https://github.com/tailwindlabs/tailwindcss/pull/19707))
- Ensure `start` and `end` legacy utilities without values do not generate CSS ([#20003](https://github.com/tailwindlabs/tailwindcss/pull/20003))
- Ensure `--value(…)` is required in functional `@utility` definitions ([#20005](https://github.com/tailwindlabs/tailwindcss/pull/20005))
- Canonicalization: preserve required whitespace around operators in negated arbitrary values (e.g. `-left-[(var(--a)+var(--b))]`) ([#20011](https://github.com/tailwindlabs/tailwindcss/pull/20011))

</Release>

<Release version="v4.2.4" date="April 21, 2026" published="2026-04-21T13:09:56.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.2.4">
### Fixed

- Ensure imports in `@import` and `@plugin` still resolve correctly when using Vite aliases in `@tailwindcss/vite` ([#19947](https://github.com/tailwindlabs/tailwindcss/pull/19947))

</Release>

<Release version="v4.2.3" date="April 20, 2026" published="2026-04-20T20:46:46.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.2.3">
### Fixed

- Canonicalization: improve canonicalizations for `tracking-*` utilities by preferring non-negative utilities (e.g. `-tracking-tighter` → `tracking-wider`) ([#19827](https://github.com/tailwindlabs/tailwindcss/pull/19827))
- Fix crash due to invalid characters in candidate (exceeding valid unicode code point range) ([#19829](https://github.com/tailwindlabs/tailwindcss/pull/19829))
- Ensure query params in imports are considered unique resources when using `@tailwindcss/webpack` ([#19723](https://github.com/tailwindlabs/tailwindcss/pull/19723))
- Canonicalization: collapse arbitrary values into shorthand utilities (e.g. `px-[1.2rem] py-[1.2rem]` → `p-[1.2rem]`) ([#19837](https://github.com/tailwindlabs/tailwindcss/pull/19837))
- Canonicalization: collapse `border-{t,b}-*` into `border-y-*`, `border-{l,r}-*` into `border-x-*`, and `border-{t,r,b,l}-*` into `border-*` ([#19842](https://github.com/tailwindlabs/tailwindcss/pull/19842))
- Canonicalization: collapse `scroll-m{t,b}-*` into `scroll-my-*`, `scroll-m{l,r}-*` into `scroll-mx-*`, and `scroll-m{t,r,b,l}-*` into `scroll-m-*` ([#19842](https://github.com/tailwindlabs/tailwindcss/pull/19842))
- Canonicalization: collapse `scroll-p{t,b}-*` into `scroll-py-*`, `scroll-p{l,r}-*` into `scroll-px-*`, and `scroll-p{t,r,b,l}-*` into `scroll-p-*` ([#19842](https://github.com/tailwindlabs/tailwindcss/pull/19842))
- Canonicalization: collapse `overflow-{x,y}-*` into `overflow-*` ([#19842](https://github.com/tailwindlabs/tailwindcss/pull/19842))
- Canonicalization: collapse `overscroll-{x,y}-*` into `overscroll-*` ([#19842](https://github.com/tailwindlabs/tailwindcss/pull/19842))
- Read from `--placeholder-color` instead of `--background-color` for `placeholder-*` utilities ([#19843](https://github.com/tailwindlabs/tailwindcss/pull/19843))
- Upgrade: ensure files are not emptied out when killing the upgrade process while it's running ([#19846](https://github.com/tailwindlabs/tailwindcss/pull/19846))
- Upgrade: use `config.content` when migrating from Tailwind CSS v3 to Tailwind CSS v4 ([#19846](https://github.com/tailwindlabs/tailwindcss/pull/19846))
- Upgrade: never migrate files that are ignored by git ([#19846](https://github.com/tailwindlabs/tailwindcss/pull/19846))
- Add `.env` and `.env.*` to default ignored content files ([#19846](https://github.com/tailwindlabs/tailwindcss/pull/19846))
- Canonicalization: migrate `overflow-ellipsis` into `text-ellipsis` ([#19849](https://github.com/tailwindlabs/tailwindcss/pull/19849))
- Canonicalization: migrate `start-full` → `inset-s-full`, `start-auto` → `inset-s-auto`, `start-px` → `inset-s-px`, and `start-<number>` → `inset-s-<number>` as well as negative versions ([#19849](https://github.com/tailwindlabs/tailwindcss/pull/19849))
- Canonicalization: migrate `end-full` → `inset-e-full`, `end-auto` → `inset-e-auto`, `end-px` → `inset-e-px`, and `end-<number>` → `inset-e-<number>` as well as negative versions ([#19849](https://github.com/tailwindlabs/tailwindcss/pull/19849))
- Canonicalization: move the `-` sign inside the arbitrary value `-left-[9rem]` → `left-[-9rem]` ([#19858](https://github.com/tailwindlabs/tailwindcss/pull/19858))
- Canonicalization: move the `-` sign outside the arbitrary value `ml-[calc(-1*var(--width))]` → `-ml-(--width)` ([#19858](https://github.com/tailwindlabs/tailwindcss/pull/19858))
- Improve performance when scanning JSONL / NDJSON files ([#19862](https://github.com/tailwindlabs/tailwindcss/pull/19862))
- Support `NODE_PATH` environment variable in standalone CLI ([#19617](https://github.com/tailwindlabs/tailwindcss/pull/19617))

</Release>

<Release version="v4.2.2" date="March 18, 2026" published="2026-03-18T16:06:04.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.2.2">
### Added

- Support Vite 8 in `@tailwindcss/vite` ([#19790](https://github.com/tailwindlabs/tailwindcss/pull/19790))

### Fixed

- Don't crash when candidates contain prototype properties like `row-constructor` ([#19725](https://github.com/tailwindlabs/tailwindcss/pull/19725))
- Canonicalize `calc(var(--spacing)*…)` expressions into `--spacing(…)` ([#19769](https://github.com/tailwindlabs/tailwindcss/pull/19769))
- Fix crash in canonicalization step when handling utilities containing `@property` at-rules (e.g. `shadow-sm border`) ([#19727](https://github.com/tailwindlabs/tailwindcss/pull/19727))
- Skip full reload for server only modules scanned by client CSS when using `@tailwindcss/vite` ([#19745](https://github.com/tailwindlabs/tailwindcss/pull/19745))
- Improve canonicalization for bare values exceeding default spacing scale suggestions (e.g. `w-1234 h-1234` → `size-1234`) ([#19809](https://github.com/tailwindlabs/tailwindcss/pull/19809))
- Fix canonicalization resulting in empty list (e.g. `w-5 h-5 size-5` → `''` instead of `size-5`) ([#19812](https://github.com/tailwindlabs/tailwindcss/pull/19812))

</Release>

<Release version="v4.2.1" date="February 23, 2026" published="2026-02-23T12:51:32.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.2.1">
### Fixed

- Allow trailing dash in functional utility names for backwards compatibility ([#19696](https://github.com/tailwindlabs/tailwindcss/pull/19696))
- Properly detect classes containing `.` characters within curly braces in MDX files ([#19711](https://github.com/tailwindlabs/tailwindcss/pull/19711))

</Release>

<Release version="v4.2.0" date="February 18, 2026" published="2026-02-18T14:58:28.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.2.0">
### Added

- Add mauve, olive, mist, and taupe color palettes to the default theme ([#19627](https://github.com/tailwindlabs/tailwindcss/pull/19627))
- Add `@tailwindcss/webpack` package to run Tailwind CSS as a webpack plugin ([#19610](https://github.com/tailwindlabs/tailwindcss/pull/19610))
- Add `pbs-*` and `pbe-*` utilities for `padding-block-start` and `padding-block-end` ([#19601](https://github.com/tailwindlabs/tailwindcss/pull/19601))
- Add `mbs-*` and `mbe-*` utilities for `margin-block-start` and `margin-block-end` ([#19601](https://github.com/tailwindlabs/tailwindcss/pull/19601))
- Add `scroll-pbs-*` and `scroll-pbe-*` utilities for `scroll-padding-block-start` and `scroll-padding-block-end` ([#19601](https://github.com/tailwindlabs/tailwindcss/pull/19601))
- Add `scroll-mbs-*` and `scroll-mbe-*` utilities for `scroll-margin-block-start` and `scroll-margin-block-end` ([#19601](https://github.com/tailwindlabs/tailwindcss/pull/19601))
- Add `border-bs-*` and `border-be-*` utilities for `border-block-start` and `border-block-end` ([#19601](https://github.com/tailwindlabs/tailwindcss/pull/19601))
- Add `inline-*`, `min-inline-*`, `max-inline-*` utilities for `inline-size`, `min-inline-size`, and `max-inline-size` ([#19612](https://github.com/tailwindlabs/tailwindcss/pull/19612))
- Add `block-*`, `min-block-*`, `max-block-*` utilities for `block-size`, `min-block-size`, and `max-block-size` ([#19612](https://github.com/tailwindlabs/tailwindcss/pull/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](https://github.com/tailwindlabs/tailwindcss/pull/19613))
- Add `font-features-*` utility for `font-feature-settings` ([#19623](https://github.com/tailwindlabs/tailwindcss/pull/19623))

### Fixed

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

### Deprecated

- Deprecate `start-*` and `end-*` utilities in favor of `inset-s-*` and `inset-e-*` utilities ([#19613](https://github.com/tailwindlabs/tailwindcss/pull/19613))

</Release>

<Release version="v4.1.18" date="December 11, 2025" published="2025-12-11T16:31:46.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.18">
### Fixed

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

</Release>

<Release version="v3.4.19" date="December 10, 2025" published="2025-12-10T18:39:41.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v3.4.19">
### Fixed

- Don’t break `sibling-*()` functions when used inside `calc(…)` ([#19335](https://github.com/tailwindlabs/tailwindcss/pull/19335))

</Release>

<Release version="v4.1.17" date="November 6, 2025" published="2025-11-06T15:34:59.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.17">
### Fixed

- Substitute `@variant` inside legacy JS APIs ([#19263](https://github.com/tailwindlabs/tailwindcss/pull/19263))
- Prevent occasional crash on Windows when loaded into a worker thread ([#19242](https://github.com/tailwindlabs/tailwindcss/pull/19242))

</Release>

<Release version="v4.1.16" date="October 23, 2025" published="2025-10-23T10:55:20.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.16">
### Fixed

- Discard candidates with an empty data type ([#19172](https://github.com/tailwindlabs/tailwindcss/pull/19172))
- Fix canonicalization of arbitrary variants with attribute selectors ([#19176](https://github.com/tailwindlabs/tailwindcss/pull/19176))
- Fix invalid colors due to nested `&` ([#19184](https://github.com/tailwindlabs/tailwindcss/pull/19184))
- Improve canonicalization for `& > :pseudo` and `& :pseudo` arbitrary variants ([#19178](https://github.com/tailwindlabs/tailwindcss/pull/19178))

</Release>

<Release version="v4.1.15" date="October 20, 2025" published="2025-10-20T13:17:31.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.15">
### Fixed

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

### Changed

- Remove the `postinstall` script from oxide ([#19149](https://github.com/tailwindlabs/tailwindcss/pull/19149))
</Release>

<Release version="v4.1.14" date="October 1, 2025" published="2025-10-01T16:00:08.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.14">
### Fixed

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

</Release>

<Release version="v3.4.18" date="October 1, 2025" published="2025-10-01T15:29:54.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v3.4.18">
### Fixed

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

</Release>

<Release version="v4.1.13" date="September 4, 2025" published="2025-09-04T17:29:16.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.13">
### Changed

- Drop warning from browser build ([#18731](https://github.com/tailwindlabs/tailwindcss/issues/18731))
- Drop exact duplicate declarations when emitting CSS ([#18809](https://github.com/tailwindlabs/tailwindcss/issues/18809))

### Fixed

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

</Release>

<Release version="v4.1.12" date="August 14, 2025" published="2025-08-14T12:48:21.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.12">
### Fixed

- Don't consider the global important state in `@apply` ([#18404](https://github.com/tailwindlabs/tailwindcss/pull/18404))
- Add missing suggestions for `flex-<number>` utilities ([#18642](https://github.com/tailwindlabs/tailwindcss/pull/18642))
- Fix trailing `)` from interfering with extraction in Clojure keywords ([#18345](https://github.com/tailwindlabs/tailwindcss/pull/18345))
- Detect classes inside Elixir charlist, word list, and string sigils ([#18432](https://github.com/tailwindlabs/tailwindcss/pull/18432))
- Track source locations through `@plugin` and `@config` ([#18345](https://github.com/tailwindlabs/tailwindcss/pull/18345))
- Allow boolean values of `process.env.DEBUG` in `@tailwindcss/node` ([#18485](https://github.com/tailwindlabs/tailwindcss/pull/18485))
- Ignore consecutive semicolons in the CSS parser ([#18532](https://github.com/tailwindlabs/tailwindcss/pull/18532))
- Center the dropdown icon added to an input with a paired datalist by default ([#18511](https://github.com/tailwindlabs/tailwindcss/pull/18511))
- Extract candidates in Slang templates ([#18565](https://github.com/tailwindlabs/tailwindcss/pull/18565))
- Improve error messages when encountering invalid functional utility names ([#18568](https://github.com/tailwindlabs/tailwindcss/pull/18568))
- Discard CSS AST objects with `false` or `undefined` properties ([#18571](https://github.com/tailwindlabs/tailwindcss/pull/18571))
- Allow users to disable URL rebasing in `@tailwindcss/postcss` via `transformAssetUrls: false` ([#18321](https://github.com/tailwindlabs/tailwindcss/pull/18321))
- Fix false-positive migrations in `addEventListener` and JavaScript variable names ([#18718](https://github.com/tailwindlabs/tailwindcss/pull/18718))
- Fix Standalone CLI showing default Bun help when run via symlink on Windows ([#18723](https://github.com/tailwindlabs/tailwindcss/pull/18723))
- Read from `--border-color-*` theme keys in `divide-*` utilities for backwards compatibility ([#18704](https://github.com/tailwindlabs/tailwindcss/pull/18704/))
- Don't scan `.hdr` and `.exr` files for classes by default ([#18734](https://github.com/tailwindlabs/tailwindcss/pull/18734))

</Release>

<Release version="v4.1.11" date="June 26, 2025" published="2025-06-26T10:52:42.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.11">
### Fixed

- Add heuristic to skip candidate migrations inside `emit(…)` ([#18330](https://github.com/tailwindlabs/tailwindcss/pull/18330))
- Extract candidates with variants in Clojure/ClojureScript keywords ([#18338](https://github.com/tailwindlabs/tailwindcss/pull/18338))
- Document `--watch=always` in the CLI's usage ([#18337](https://github.com/tailwindlabs/tailwindcss/pull/18337))
- Add support for Vite 7 to `@tailwindcss/vite` ([#18384](https://github.com/tailwindlabs/tailwindcss/pull/18384))

</Release>

<Release version="v4.1.10" date="June 11, 2025" published="2025-06-11T20:37:12.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.10">
### Fixed

- Fix incorrectly generated CSS when using percentages in arbitrary values with calc (e.g. `w-[calc(100%-var(--offset))]`) ([#18289](https://github.com/tailwindlabs/tailwindcss/pull/18289))

</Release>

<Release version="v4.1.9" date="June 11, 2025" published="2025-06-11T14:27:54.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.9">
### Fixed

- Correctly parse custom properties with strings containing semicolons ([#18251](https://github.com/tailwindlabs/tailwindcss/pull/18251))
- Upgrade: Migrate arbitrary modifiers without percentage signs to bare values (e.g. `/[0.16]` → `/16`) ([#18184](https://github.com/tailwindlabs/tailwindcss/pull/18184))
- Upgrade: Migrate CSS variable shorthands where fallback value contains function call ([#18184](https://github.com/tailwindlabs/tailwindcss/pull/18184))
- Upgrade: Migrate negative arbitrary values to negative bare values (e.g. `mb-[-32rem]` → `-mb-128`) ([#18212](https://github.com/tailwindlabs/tailwindcss/pull/18212))
- Upgrade: Do not migrate `blur` in `wire:model.blur` ([#18216](https://github.com/tailwindlabs/tailwindcss/pull/18216))
- Don't add spaces around CSS dashed idents when formatting math expressions ([#18220](https://github.com/tailwindlabs/tailwindcss/pull/18220))

</Release>

<Release version="v4.1.8" date="May 28, 2025" published="2025-05-28T15:22:00.000Z" url="https://github.com/tailwindlabs/tailwindcss/releases/tag/v4.1.8">
### Added

- Improve error messages when `@apply` fails ([#18059](https://github.com/tailwindlabs/tailwindcss/pull/18059))

### Fixed

- Upgrade: Do not migrate declarations that look like candidates in `<style>` blocks ([#18057](https://github.com/tailwindlabs/tailwindcss/pull/18057), [18068](https://github.com/tailwindlabs/tailwindcss/pull/18068))
- Upgrade: Don't error when looking for `tailwindcss` in pnpm monorepos ([#18065](https://github.com/tailwindlabs/tailwindcss/pull/18065))
- Upgrade: Don't error when updating dependencies in pnpm monorepos ([#18065](https://github.com/tailwindlabs/tailwindcss/pull/18065))
- Upgrade: Migrate deprecated `order-none` to `order-0` ([#18126](https://github.com/tailwindlabs/tailwindcss/pull/18126))
- Support Leptos `class:` attributes when extracting classes ([#18093](https://github.com/tailwindlabs/tailwindcss/pull/18093))
- Fix "Cannot read properties of undefined" crash on malformed arbitrary value ([#18133](https://github.com/tailwindlabs/tailwindcss/pull/18133))
- Upgrade: Migrate `-mt-[0px]` to `mt-[0px]` instead of the other way around ([#18154](https://github.com/tailwindlabs/tailwindcss/pull/18154))
- Fix Haml pre-processing crash when there is no `
` at the end of the file ([#18155](https://github.com/tailwindlabs/tailwindcss/pull/18155))
- Ignore `.pnpm-store` folders by default (can be overridden by `@source …` rules) ([#18163](https://github.com/tailwindlabs/tailwindcss/pull/18163))
- Fix PostCSS crash when calling `toJSON()` ([#18083](https://github.com/tailwindlabs/tailwindcss/pull/18083))

</Release>

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