diff --git a/BREAKING_CHANGES.md b/BREAKING_CHANGES.md
index 6aaac730201..eea0954c81b 100644
--- a/BREAKING_CHANGES.md
+++ b/BREAKING_CHANGES.md
@@ -1,5 +1,6 @@
 ## From 37.x to 38
 
+- **`vtk-lite.js` removed.** Use `vtk.js` for script/CDN URLs and copied assets. Replace `vtk.js/vtk-lite.js` imports or requires with `vtk.js/vtk.js` or the package entry. Both files have contained the full UMD bundle since 36.
 - **TypeScript declarations**: expanded coverage and corrected types may expose build errors. Remove conflicting local declaration shims and fix code rejected by the new types.
 - **TypeScript libraries**: typed-array factories now declare BigInt support. Add `ES2020.BigInt` if your `lib` list does not include `ES2020` or later. Your `target` can stay unchanged.
 - **Accessor types**: `setXFrom` methods and setters that return no value now declare `void`. Getter types include `null` or `undefined` where applicable.
diff --git a/Utilities/build/vtk-plugins.mjs b/Utilities/build/vtk-plugins.mjs
index ad672f3acde..93c1cad61c3 100644
--- a/Utilities/build/vtk-plugins.mjs
+++ b/Utilities/build/vtk-plugins.mjs
@@ -226,12 +226,6 @@ export function copyUmdAssetsPlugin({ umdOutputDir, projectRoot }) {
         delete pkg.type;
         delete pkg.types;
       });
-
-      // vtk-lite.js is a deprecated alias of vtk.js; see BREAKING_CHANGES.md.
-      const vtkBundle = path.join(umdOutputDir, 'vtk.js');
-      if (fs.existsSync(vtkBundle)) {
-        fs.copyFileSync(vtkBundle, path.join(umdOutputDir, 'vtk-lite.js'));
-      }
     },
   };
 }