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meta: bump @tailwindcss/postcss from 4.1.18 to 4.2.1 in the styling group#8683

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meta: bump @tailwindcss/postcss from 4.1.18 to 4.2.1 in the styling group#8683
dependabot[bot] wants to merge 1 commit intomainfrom
dependabot/npm_and_yarn/styling-b7e3f98263

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@dependabot dependabot bot commented on behalf of github Mar 1, 2026

Bumps the styling group with 1 update: @tailwindcss/postcss.

Updates @tailwindcss/postcss from 4.1.18 to 4.2.1

Release notes

Sourced from @​tailwindcss/postcss's releases.

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)

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 inset-s-* and inset-e-* utilities (#19613)
Changelog

Sourced from @​tailwindcss/postcss's changelog.

[4.2.1] - 2026-02-23

Fixed

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

[4.2.0] - 2026-02-18

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 inset-s-* and inset-e-* utilities (#19613)
Commits

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Bumps the styling group with 1 update: [@tailwindcss/postcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/@tailwindcss-postcss).


Updates `@tailwindcss/postcss` from 4.1.18 to 4.2.1
- [Release notes](https://github.com/tailwindlabs/tailwindcss/releases)
- [Changelog](https://github.com/tailwindlabs/tailwindcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/tailwindlabs/tailwindcss/commits/v4.2.1/packages/@tailwindcss-postcss)

---
updated-dependencies:
- dependency-name: "@tailwindcss/postcss"
  dependency-version: 4.2.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: styling
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot added the github_actions:pull-request Trigger Pull Request Checks label Mar 1, 2026
@dependabot dependabot bot requested review from a team as code owners March 1, 2026 17:20
@dependabot dependabot bot added the github_actions:pull-request Trigger Pull Request Checks label Mar 1, 2026
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github-actions bot commented Mar 1, 2026

👋 Codeowner Review Request

The following codeowners have been identified for the changed files:

Team reviewers: @nodejs/nodejs-website @nodejs/web-infra

Please review the changes when you have a chance. Thank you! 🙏

@github-actions github-actions bot removed the github_actions:pull-request Trigger Pull Request Checks label Mar 1, 2026
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codecov bot commented Mar 1, 2026

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.10%. Comparing base (8ac227f) to head (6360d84).
✅ All tests successful. No failed tests found.

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #8683      +/-   ##
==========================================
+ Coverage   75.06%   75.10%   +0.03%     
==========================================
  Files         104      104              
  Lines        9161     9161              
  Branches      316      315       -1     
==========================================
+ Hits         6877     6880       +3     
+ Misses       2282     2279       -3     
  Partials        2        2              

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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github-actions bot commented Mar 1, 2026

📦 Build Size Comparison

Summary

Metric Value
Old Total Size 3.73 MB
New Total Size 3.73 MB
Delta 0 B (0.00%)

Changes

➕ Added Assets (1)
Name Size
.next/static/chunks/2e3d4b71148763ff.js 207.66 KB
➖ Removed Assets (1)
Name Size
.next/static/chunks/17e8ba267e2bbe29.js 207.66 KB

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