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Build(deps-dev): bump @tailwindcss/postcss from 4.1.18 to 4.2.1#569

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Build(deps-dev): bump @tailwindcss/postcss from 4.1.18 to 4.2.1#569
dependabot[bot] wants to merge 2 commits intomainfrom
dependabot/npm_and_yarn/tailwindcss/postcss-4.2.1

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@dependabot dependabot bot commented on behalf of github Mar 2, 2026

Bumps @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)
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dependabot bot commented on behalf of github Mar 2, 2026

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Please fix the above issues or remove invalid values from dependabot.yml.

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The files' contents are under analysis for test generation.

@github-actions github-actions bot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Mar 2, 2026
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socket-security bot commented Mar 2, 2026

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff Package Supply Chain
Security
Vulnerability Quality Maintenance License
Updatedtailwindcss@​4.1.18 ⏵ 4.2.1100 +110084 +198100
Updated@​tailwindcss/​postcss@​4.1.18 ⏵ 4.2.1100 +110010098100

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socket-security bot commented Mar 2, 2026

Caution

Review the following alerts detected in dependencies.

According to your organization's Security Policy, you must resolve all "Block" alerts before proceeding. Learn more about Socket for GitHub.

Action Severity Alert  (click "▶" to expand/collapse)
Block Low
Dynamic module loading: npm lightningcss

Location: Package overview

From: package-lock.jsonnpm/vite@7.3.1npm/@tailwindcss/postcss@4.2.1npm/lightningcss@1.31.1

ℹ Read more on: This package | This alert | What is dynamic require?

Next steps: Take a moment to review the security alert above. Review the linked package source code to understand the potential risk. Ensure the package is not malicious before proceeding. If you're unsure how to proceed, reach out to your security team or ask the Socket team for help at support@socket.dev.

Suggestion: Packages should avoid dynamic imports when possible. Audit the use of dynamic require to ensure it is not executing malicious or vulnerable code.

Mark the package as acceptable risk. To ignore this alert only in this pull request, reply with the comment @SocketSecurity ignore npm/lightningcss@1.31.1. You can also ignore all packages with @SocketSecurity ignore-all. To ignore an alert for all future pull requests, use Socket's Dashboard to change the triage state of this alert.

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deepsource-io bot commented Mar 2, 2026

DeepSource Code Review

We reviewed changes in ccf8f9c...8929166 on this pull request. Below is the summary for the review, and you can see the individual issues we found as inline review comments.

See full review on DeepSource ↗

PR Report Card

Overall Grade   Security  

Reliability  

Complexity  

Hygiene  

Coverage  

Code Review Summary

Analyzer Status Updated (UTC) Details
Test coverage Mar 4, 2026 1:33p.m. Review ↗
Secrets Mar 4, 2026 1:33p.m. Review ↗
JavaScript Mar 4, 2026 1:33p.m. Review ↗

Code Coverage Summary

Language Line Coverage (Overall)
Aggregate
93.8%
Javascript
93.8%

➟ Additional coverage metrics may have been reported. See full coverage report ↗

@guibranco guibranco enabled auto-merge (squash) March 2, 2026 01:55
@gstraccini gstraccini bot added the ☑️ auto-merge Automatic merging of pull requests (gstraccini-bot) label Mar 2, 2026
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Automatically approved by gstraccini[bot]

@gstraccini gstraccini bot added the 🤖 bot Automated processes or integrations label Mar 2, 2026
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/tailwindcss/postcss-4.2.1 branch from 1628083 to 0c2407a Compare March 3, 2026 18:12
Bumps [@tailwindcss/postcss](https://github.com/tailwindlabs/tailwindcss/tree/HEAD/packages/@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:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot bot force-pushed the dependabot/npm_and_yarn/tailwindcss/postcss-4.2.1 branch from 0c2407a to bb6e08c Compare March 4, 2026 11:34
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github-actions bot commented Mar 4, 2026

Infisical secrets check: ✅ No secrets leaked!

💻 Scan logs
2026-03-04T13:32:53Z INF scanning for exposed secrets...
1:32PM INF 471 commits scanned.
2026-03-04T13:32:53Z INF scan completed in 372ms
2026-03-04T13:32:53Z INF no leaks found

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sonarqubecloud bot commented Mar 4, 2026

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dependabot bot commented on behalf of github Mar 23, 2026

A newer version of @​tailwindcss/postcss exists, but since this PR has been edited by someone other than Dependabot I haven't updated it. You'll get a PR for the updated version as normal once this PR is merged.

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