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[web] Update @tailwindcss/postcss 4.3.0 → 4.3.3 (patch)#116

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[web] Update @tailwindcss/postcss 4.3.0 → 4.3.3 (patch)#116
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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ @​tailwindcss/postcss (4.3.0 → 4.3.3) · Repo · Changelog

Release Notes

4.3.3

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 (e.g. bg-[#fff] and bg-[#FFF] → bg-white) (#20298)
  • Prevent Preflight from overriding Firefox's native iframe:focus-visible outline styles (#20292)
  • Ensure theme('colors.foo') in JS plugins resolves correctly when both --color-foo and --color-foo-bar exist (#20299)
  • Ensure fractional opacity modifiers work with named shadow sizes like shadow-sm/12.5, text-shadow-sm/12.5, drop-shadow-sm/12.5, and inset-shadow-sm/12.5 (#20302)
  • Parse selectors like [data-foo]div as two selectors instead of one (#20303)
  • Ensure @tailwindcss/postcss rebuilds when a preprocessor like Sass changes the input CSS without changing the input file on disk (#20310)
  • Ensure CSS nesting is handled even when Lightning CSS isn't run, such as in @tailwindcss/browser and Tailwind Play (#20124)
  • Prevent achromatic theme colors from shifting hue when mixed in polar color spaces like oklch (#20314)
  • Ensure --spacing(0) is optimized to 0px instead of 0 so it remains a <length> when used in calc(…) (#20319)
  • Load @parcel/watcher only when needed in @tailwindcss/cli --watch mode, so one-off builds and --watch --poll work when @parcel/watcher can't be loaded (#20325)
  • Use explicit platform fonts instead of system-ui and ui-sans-serif so CJK text respects the page's lang attribute on Windows (#20318)
  • Prevent @tailwindcss/upgrade from rewriting ignored files when run from a subdirectory (#20329)
  • Ensure earlier @source rules pointing to nested files are scanned when later @source rules point to files in parent folders (#20335)
  • Prevent @tailwindcss/vite from triggering full page reloads when scanned files are processed by Vite but haven't been loaded as modules yet (#20336)

4.3.2

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 @source points to a directory that doesn't exist (#20242)
  • Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#20245)
  • Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#20246)
  • Allow @variant rules used in addBase(…) to use custom variants defined later (#20247)
  • Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#20259)
  • Generate font-size instead of color declarations for text-[--spacing(…)] (#20260)
  • Prevent @source patterns from scanning unrelated sibling files and folders (#20263)
  • Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#20269)
  • Extract class candidates from conditional Maud syntax like p.text-black[condition] (#20269)
  • Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#20277)
  • Support class suggestions for named opacity modifiers from --opacity theme values (#20287)
  • Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#20289)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

✳️ tailwindcss (4.3.0 → 4.3.3) · Repo · Changelog

Release Notes

4.3.3

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 (e.g. bg-[#fff] and bg-[#FFF] → bg-white) (#20298)
  • Prevent Preflight from overriding Firefox's native iframe:focus-visible outline styles (#20292)
  • Ensure theme('colors.foo') in JS plugins resolves correctly when both --color-foo and --color-foo-bar exist (#20299)
  • Ensure fractional opacity modifiers work with named shadow sizes like shadow-sm/12.5, text-shadow-sm/12.5, drop-shadow-sm/12.5, and inset-shadow-sm/12.5 (#20302)
  • Parse selectors like [data-foo]div as two selectors instead of one (#20303)
  • Ensure @tailwindcss/postcss rebuilds when a preprocessor like Sass changes the input CSS without changing the input file on disk (#20310)
  • Ensure CSS nesting is handled even when Lightning CSS isn't run, such as in @tailwindcss/browser and Tailwind Play (#20124)
  • Prevent achromatic theme colors from shifting hue when mixed in polar color spaces like oklch (#20314)
  • Ensure --spacing(0) is optimized to 0px instead of 0 so it remains a <length> when used in calc(…) (#20319)
  • Load @parcel/watcher only when needed in @tailwindcss/cli --watch mode, so one-off builds and --watch --poll work when @parcel/watcher can't be loaded (#20325)
  • Use explicit platform fonts instead of system-ui and ui-sans-serif so CJK text respects the page's lang attribute on Windows (#20318)
  • Prevent @tailwindcss/upgrade from rewriting ignored files when run from a subdirectory (#20329)
  • Ensure earlier @source rules pointing to nested files are scanned when later @source rules point to files in parent folders (#20335)
  • Prevent @tailwindcss/vite from triggering full page reloads when scanned files are processed by Vite but haven't been loaded as modules yet (#20336)

4.3.2

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 @source points to a directory that doesn't exist (#20242)
  • Prevent @tailwindcss/vite from crashing in Deno v2.8.x when context.parentURL is not a valid URL (#20245)
  • Ensure @tailwindcss/cli in --watch mode rebuilds when the input CSS file changes in an ignored directory (#20246)
  • Allow @variant rules used in addBase(…) to use custom variants defined later (#20247)
  • Prevent @tailwindcss/vite from crashing during HMR when scanned files or directories are deleted (#20259)
  • Generate font-size instead of color declarations for text-[--spacing(…)] (#20260)
  • Prevent @source patterns from scanning unrelated sibling files and folders (#20263)
  • Extract class candidates adjacent to Template Toolkit delimiters like %]…[% in .tt, .tt2, and .tx files (#20269)
  • Extract class candidates from conditional Maud syntax like p.text-black[condition] (#20269)
  • Prevent @position-try rules from triggering unknown at-rule warnings when optimizing CSS (#20277)
  • Support class suggestions for named opacity modifiers from --opacity theme values (#20287)
  • Prevent type errors in @tailwindcss/postcss when used with newer PostCSS patch releases (#20289)

4.3.1

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+ (#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 (#20139)
  • Ensure class candidates are extracted from Twig addClass(…) and removeClass(…) calls (#20198)
  • Don't crash in the Ruby or Vue preprocessors when scanning files containing invalid UTF-8 bytes (#19588)
  • Allow @variant to be used inside addBase (#19480)
  • Ensure @source globs with symlinks are preserved (#20203)
  • Ensure later @source rules can re-include files excluded by earlier @source not rules (#20203)
  • Upgrade: don't migrate empty class rules to invalid @utility rules (#20205)
  • Ensure transitions between inset-shadow-none and other inset shadows work correctly (#20208)
  • Ensure explicitly referenced @source directories are scanned even when ignored by git (#20214)
  • Ensure @source globs ending in **/* preserve dynamic path segments to avoid scanning too many files (#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)
  • Serve ESM type declarations to ESM importers of @tailwindcss/postcss (#20228)

Changed

  • Generate 0 instead of calc(var(--spacing) * 0) for spacing utilities like m-0 and left-0 (#20196)
  • Generate var(--spacing) instead of calc(var(--spacing) * 1) for spacing utilities like m-1 and left-1 (#20196)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

↗️ enhanced-resolve (indirect, 5.21.4 → 5.24.2) · Repo · Changelog

Release Notes

5.24.2

Patch Changes

  • Batch cached filesystem callbacks from one synchronous burst into a single tick. (by @alexander-akait in #623)

5.24.1

Patch Changes

  • Reduce hot-path allocations in the resolve pipeline. (by @xiaoxiaojx in #615)

5.24.0

Minor Changes

  • Allow the context path and request arguments of resolve (and resolveSync/resolvePromise) to accept file: URL instances, converting them to filesystem paths. Plain strings stay literal paths, matching Node's fs. (by @alexander-akait in #607)

Patch Changes

  • Make the resolver runtime-agnostic so it works in browsers, Deno and Bun as well as Node. File contents are decoded without assuming a Node Buffer, and browser shims are provided for the path, url and graceful-fs builtins (Node, Deno and Bun keep using the native ones) so the package bundles for the browser — supply your own fileSystem there. (by @alexander-akait in #606)

  • Rename the positional resolve/resolveSync/resolvePromise parameters to parent/specifier (from path/request) for ESM-aligned naming and document them in the README. Purely cosmetic — arguments are positional, so there is no behavior or API change. (by @alexander-akait in #611)

5.23.0

Minor Changes

  • Allow the path-like resolve options roots, modules, alias/fallback targets, restrictions, and tsconfig (the config file, configFile, baseUrl, and references) to accept file URL instances (such as new URL("./dir/", import.meta.url)), converting them to filesystem paths. Plain strings are still treated as literal paths, matching Node's fs. (by @alexander-akait in #604)

5.22.2

Patch Changes

  • Fall back to the next modules entry when a package exports target is filtered out by restrictions, instead of throwing. (by @alexander-akait in #600)

5.22.1

Patch Changes

  • Fix restrictions bypass via an in-root symlink pointing outside the root. (by @alexander-akait in #595)

5.22.0

Minor Changes

  • CachedInputFileSystem#purge accepts a second { exact?: boolean } argument; exact: true removes only entries whose key matches what exactly instead of any entry whose key starts with what. (by @alexander-akait in #591)

5.21.6

Patch Changes

  • Speed up alias resolution on the hot path. (by @alexander-akait in #589)

    • AliasPlugin / TsconfigPathsPlugin: bucket compiled alias options by the first char code of name, so resolves skip options whose name can't possibly match the request's first char. Gated to cases with 2+ distinct first chars so degenerate single-bucket lists (e.g. long alias chains) don't pay for the Map.get.
    • TsconfigPathsPlugin: memoize _selectPathsDataForContext(map, requestPath) per map so the per-source-file contextList scan only runs once per directory. Gated to maps with 2+ contexts so single-context tsconfigs aren't penalized by the cache lookup.

    Biggest wins on alias-heavy configs (300+ entries): huge-alias-miss +151%, huge-alias-list +126%, alias-first-char-miss +120%.

5.21.5

Patch Changes

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 39 commits:

🆕 @​emnapi/core (added, 1.11.1)

🆕 @​emnapi/runtime (added, 1.11.1)

🆕 @​emnapi/wasi-threads (added, 1.2.2)

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@depfu depfu Bot added the depfu label Jul 17, 2026
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