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Bump tailwindcss-rails from 3.3.2 to 4.6.0#121

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Bump tailwindcss-rails from 3.3.2 to 4.6.0#121
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dependabot/bundler/tailwindcss-rails-4.6.0

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@dependabot dependabot Bot commented on behalf of github Jun 22, 2026

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Bumps tailwindcss-rails from 3.3.2 to 4.6.0.

Release notes

Sourced from tailwindcss-rails's releases.

v4.6.0 / 2026-06-17

Fixed

  • tailwindcss:watch now forwards stop signals (SIGINT/SIGTERM) to the spawned tailwindcss process, instead of letting it be orphaned. This happens when a process manager signals the watch task directly rather than the whole process group — most commonly Procfile-based managers like foreman in development. @​jordan-brough

v4.5.0 / 2026-06-15

Improved

  • New silent flag on tailwindcss:build and tailwindcss:watch tasks to suppress non-error output from the tailwindcss CLI (e.g., bin/rails tailwindcss:watch[silent]). Requires Tailwind CSS v4.3.1. #618 @​jordan-brough

New Contributors

Full Changelog: rails/tailwindcss-rails@v4.4.0...v4.5.0

v4.4.0 / 2025-10-27

Changed

  • Removed the "poll" option on the watch command, since Tailwind v4 dropped support for this option (and it has been a no-op in this gem since.) #580 @​flavorjones

Improved

  • Support Rails 8.1 scaffolding which disables system tests by default. #585 @​flavorjones
  • Puma plugin now has experimental support for Rails engines. #567 @​bopm
  • Puma plugin uses Puma 7's after_stopped callback, quashing a deprecation warning. #578 @​rono23

New Contributors 🎉

Full Changelog: rails/tailwindcss-rails@v4.3.0...v4.4.0

v4.3.0 / 2025-07-06

Improved

v4.3.0.rc2

Improved

... (truncated)

Changelog

Sourced from tailwindcss-rails's changelog.

v4.6.0 / 2026-06-17

Fixed

  • tailwindcss:watch now forwards stop signals (SIGINT/SIGTERM) to the spawned tailwindcss process, instead of letting it be orphaned. This happens when a process manager signals the watch task directly rather than the whole process group — most commonly Procfile-based managers like foreman in development. @​jordan-brough

v4.5.0 / 2026-06-15

Improved

  • New silent flag on tailwindcss:build and tailwindcss:watch tasks to suppress non-error output from the tailwindcss CLI (e.g., bin/rails tailwindcss:watch[silent]). Requires Tailwind CSS v4.3.1. #618 @​jordan-brough

v4.4.0 / 2025-10-27

Changed

  • Removed the "poll" option on the watch command, since Tailwind v4 dropped support for this option (and it has been a no-op in this gem since.) #580 @​flavorjones

Improved

  • Support Rails 8.1 scaffolding which disables system tests by default. #585 @​flavorjones
  • Puma plugin now has experimental support for Rails engines. #567 @​bopm
  • Puma plugin uses Puma 7's after_stopped callback, quashing a deprecation warning. #578 @​rono23

v4.3.0 / 2025-07-06

Improved

v4.2.3 / 2025-05-02

Improved

  • The "tailwindcss:upgrade" task now pins to v4.1.4 of the @tailwindcss/upgrade tool. #544 @​flavorjones

v4.2.2 / 2025-04-05

Improved

  • The "tailwindcss:upgrade" task now uses the latest version of the @tailwindcss/upgrade tool. #529 @​flavorjones
  • The "verbose" flag on Rails tasks now emits additional tailwind CLI debugging info (e.g., bin/rails tailwindcss:build[verbose]). #530 @​flavorjones
  • Simplified the scaffold templates, removing unnecessary div tags. @​523 @​patriciomacadden

... (truncated)

Commits
  • d4d95b3 version bump to v4.6.0
  • 900f700 Forward stop signals to tailwindcss watcher (#621)
  • c704ea5 dev: update Gemfile.lock
  • 2938f5a build(deps): bump ruby/setup-ruby in the github-actions group (#624)
  • e9773b5 version bump to v4.5.0
  • 35a521e doc: update CHANGELOG
  • 9a6a58a Support new --silent tailwind flag via [silent] (#618)
  • c169899 build(deps): bump actions/checkout in the github-actions group (#623)
  • 2d75b62 build(deps): bump ruby/setup-ruby in the github-actions group (#622)
  • b3b682d Merge pull request #616 from rails/dependabot/bundler/tailwindcss-ruby-4.3.0
  • Additional commits viewable in compare view

@dependabot dependabot Bot added dependencies Pull requests that update a dependency file ruby Pull requests that update ruby code labels Jun 22, 2026

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Comment thread Gemfile.lock
railties (>= 6.0.0)
stringio (3.2.0)
tailwindcss-rails (3.3.2)
tailwindcss-rails (4.6.0)

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P1 Badge Run the Tailwind v4 migration before upgrading

With tailwindcss-rails 4.x, Tailwindcss::Commands.compile_command now builds from app/assets/tailwind/application.css instead of the v3 input path, and the gem's upgrade docs say tailwindcss:upgrade moves the file there. This repo still only has app/assets/stylesheets/application.tailwind.css, while Dockerfile runs ./bin/rails assets:precompile, so production image builds will fail as soon as the new gem tries to run tailwindcss:build against the missing input file.

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Bumps [tailwindcss-rails](https://github.com/rails/tailwindcss-rails) from 3.3.2 to 4.6.0.
- [Release notes](https://github.com/rails/tailwindcss-rails/releases)
- [Changelog](https://github.com/rails/tailwindcss-rails/blob/main/CHANGELOG.md)
- [Commits](rails/tailwindcss-rails@v3.3.2...v4.6.0)

---
updated-dependencies:
- dependency-name: tailwindcss-rails
  dependency-version: 4.6.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/bundler/tailwindcss-rails-4.6.0 branch from c53e908 to f41027e Compare June 28, 2026 20:11
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