diff --git a/package.json b/package.json
index f82a124a..ee42f6e4 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,12 @@
 {
   "name": "ui-router-core",
   "description": "UI-Router Core: Framework agnostic, State-based routing for JavaScript Single Page Apps",
-  "version": "3.1.1",
+  "version": "4.0.0",
   "scripts": {
     "clean": "shx rm -rf lib lib-esm",
     "build": "npm run clean && tsc && tsc -m es6 --outDir lib-esm && npm run fixdts",
     "fixdts": "dts-downlevel 'lib/**/*.d.ts' 'lib-esm/**/*.d.ts'",
+    "prepublish": "npm run build",
     "test": "karma start",
     "watch": "run-p watch:*",
     "watch:buildjs": "tsc -w",
diff --git a/src/index.ts b/src/index.ts
index 3b84e0c7..634f9861 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -14,4 +14,5 @@ export * from "./view/index";
 export * from "./globals";
 
 export * from "./router";
+export * from "./vanilla";
 export * from "./interface";
diff --git a/src/vanilla/index.ts b/src/vanilla/index.ts
index 5ced5d00..18538a38 100644
--- a/src/vanilla/index.ts
+++ b/src/vanilla/index.ts
@@ -6,6 +6,8 @@
  * @module vanilla
  */
 /** */
+export * from "./interface";
+
 export * from "./$q";
 export * from "./$injector";
 
@@ -17,4 +19,5 @@ export * from "./pushStateLocationService";
 export * from "./memoryLocationConfig";
 export * from "./browserLocationConfig";
 
+export * from "./utils";
 export * from "./plugins";