Add tailwindcss/lib/util/flattenColorPalette.js export

Author: philipp-spiess

CHANGELOG.md

@@ -7,7 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-- Nothing yet!
+### Fixed
+
+- Export `tailwindcss/lib/util/flattenColorPalette.js` for backward compatibility ([#16411](https://github.com/tailwindlabs/tailwindcss/pull/16411))
 
 ## [4.0.6] - 2025-02-10
 

packages/tailwindcss/package.json

@@ -35,6 +35,10 @@
  "require": "./src/compat/flatten-color-palette.cts",
  "import": "./src/compat/flatten-color-palette.ts"
  },
+ "./lib/util/flattenColorPalette.js": {
+ "require": "./src/compat/flatten-color-palette.cts",
+ "import": "./src/compat/flatten-color-palette.ts"
+ },
  "./defaultTheme": {
  "require": "./src/compat/default-theme.cts",
  "import": "./src/compat/default-theme.ts"