do not require Tailwind CSS v3 projects anymore

Author: RobinMalfait

packages/@tailwindcss-upgrade/src/index.ts

@@ -20,7 +20,6 @@ import { Stylesheet } from './stylesheet'
 import { args, type Arg } from './utils/args'
 import { isRepoDirty } from './utils/git'
 import { hoistStaticGlobParts } from './utils/hoist-static-glob-parts'
-import { getPackageVersion } from './utils/package-version'
 import { pkg } from './utils/packages'
 import { eprintln, error, header, highlight, info, relative, success } from './utils/renderer'
 
@@ -59,15 +58,6 @@ async function run() {
     }
   }
 
-  // Require an installed `tailwindcss` version < 4
-  let tailwindVersion = await getPackageVersion('tailwindcss', base)
-  if (tailwindVersion && Number(tailwindVersion.split('.')[0]) !== 3) {
-    error(
-      `Tailwind CSS v${tailwindVersion} found. The migration tool can only be run on v3 projects.`,
-    )
-    process.exit(1)
-  }
-
   {
     // Stylesheet migrations