Upgrade test-app to tailwind 4 #8
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Contributor
There was a problem hiding this comment.
Pull request overview
This PR upgrades Tailwind CSS from version 3.3.3 to 4.1.18 in the test-app, modernizing the styling infrastructure with Tailwind v4's new features and syntax.
Key Changes:
- Migrated from v3 config-based setup to v4's CSS-first approach with
@themedirective - Updated PostCSS configuration to use
@tailwindcss/postcssplugin - Replaced deprecated utility classes (
flex-shrink-0→shrink-0,mx-[-1px]→-mx-px,h-[48px]→h-12,gap-0.25→gap-px) - Added border color compatibility layer to maintain v3 styling defaults
Reviewed changes
Copilot reviewed 18 out of 19 changed files in this pull request and generated 2 comments.
Show a summary per file
| File | Description |
|---|---|
| pnpm-lock.yaml | Updated dependencies for Tailwind v4 and related packages, including jiti upgrade to v2 |
| packages/test-app/tailwind.config.ts | Removed (Tailwind v4 uses CSS-based configuration) |
| packages/test-app/src/app/globals.css | Migrated to v4 syntax with @import 'tailwindcss' and @theme directive; added border color compatibility |
| packages/test-app/postcss.config.js | Updated to use @tailwindcss/postcss plugin instead of separate tailwindcss and autoprefixer |
| packages/test-app/package.json | Added @tailwindcss/postcss, upgraded tailwindcss to 4.1.18, removed autoprefixer |
| packages/test-app/src/app/**/*.tsx | Updated class names for v4 compatibility and applied code formatting improvements |
| packages/eslint-config/base.ts | Updated CSS parser from tailwind3 to tailwind4 for proper linting |
Files not reviewed (1)
- pnpm-lock.yaml: Language not supported
💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Upgrades tailwind to v4 for the test-app