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Fix invalid Tailwind v4 selector syntax generated by upgrade tool - #329
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dmitriy-kostianetskiy with Copilot wants to merge 2 commits into
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Co-authored-by: dmitriy-kostianetskiy <[email protected]>
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Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details. Warning Firewall rules blocked me from connecting to one or more addresses (expand for details)I tried to connect to the following addresses, but was blocked by firewall rules:
If you need me to access, download, or install something from one of these locations, you can either:
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[WIP] Upgrade Tailwind CSS to version 4 and configure
Fix invalid Tailwind v4 selector syntax generated by upgrade tool
Jan 27, 2026
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This is valid syntax https://tailwindcss.com/docs/hover-focus-and-other-states#child-selectors |
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The Tailwind upgrade tool (
npx @tailwindcss/upgrade) incorrectly converted descendant selectors to invalid*:[[...]]and**:[[...]]syntax, which is not valid Tailwind v4.Changes
packages/ui/src/components/table.tsx
*:[[role=checkbox]]→[&_[role=checkbox]]packages/ui/src/components/command.tsx
**:[[cmdk-group-heading]]→[&_[cmdk-group-heading]]**:[[cmdk-group]]→[&_[cmdk-group]]**:[[cmdk-input]]→[&_[cmdk-input]]**:[[cmdk-item]]→[&_[cmdk-item]]Example
The
[&_element]syntax is the correct Tailwind v4 descendant selector notation.💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.