diff --git a/packages/compat/src/options.ts b/packages/compat/src/options.ts
index ce8a6b1f9..43069802d 100644
--- a/packages/compat/src/options.ts
+++ b/packages/compat/src/options.ts
@@ -96,7 +96,6 @@ const defaults = Object.assign(coreWithDefaults(), {
   compatAdapters: new Map(),
   extraPublicTrees: [],
   workspaceDir: null,
-  optionalComponents: [],
   packageRules: [],
   allowUnsafeDynamicComponents: false,
 });
diff --git a/packages/core/src/options.ts b/packages/core/src/options.ts
index 5a7734c8e..cfe6db35a 100644
--- a/packages/core/src/options.ts
+++ b/packages/core/src/options.ts
@@ -112,10 +112,7 @@ export function optionsWithDefaults(options?: Options): Required<Options> {
     staticHelpers: false,
     staticModifiers: false,
     staticComponents: false,
-    packageRules: [],
     splitAtRoutes: [],
-    splitControllers: false,
-    splitRouteClasses: false,
     staticAppPaths: [],
     skipBabel: [],
     pluginHints: [],
diff --git a/packages/router/ember-cli-build.js b/packages/router/ember-cli-build.js
index e8f2676e7..71bf113d8 100644
--- a/packages/router/ember-cli-build.js
+++ b/packages/router/ember-cli-build.js
@@ -18,7 +18,6 @@ module.exports = function (defaults) {
     staticComponents: true,
     staticHelpers: true,
     staticModifiers: true,
-    splitRouteClasses: true,
     splitAtRoutes: ['split-me'],
   });
 };