diff --git a/generators/angular/types-deprecated.d.ts b/generators/angular/types-deprecated.d.ts
new file mode 100644
index 000000000000..8b87e0995352
--- /dev/null
+++ b/generators/angular/types-deprecated.d.ts
@@ -0,0 +1,24 @@
+/**
+ * Copyright 2013-2024 the original author or authors from the JHipster project.
+ *
+ * This file is part of the JHipster project, see https://www.jhipster.tech/
+ * for more information.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/**
+ * Will be deprecated and merged into AngularApplication
+ */
+export type PartialAngularApplication = {
+  angularLocaleId: string;
+};
diff --git a/generators/angular/types.d.ts b/generators/angular/types.d.ts
index 8a3632f76433..16072576f5b1 100644
--- a/generators/angular/types.d.ts
+++ b/generators/angular/types.d.ts
@@ -1,3 +1,21 @@
+/**
+ * Copyright 2013-2024 the original author or authors from the JHipster project.
+ *
+ * This file is part of the JHipster project, see https://www.jhipster.tech/
+ * for more information.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 import type { Entity } from '../../lib/types/application/entity.js';
 import type { ApplicationType } from '../../lib/types/application/application.js';
 
diff --git a/generators/client/types.d.ts b/generators/client/types.d.ts
index 4aab32bf6ab7..12803f3331d9 100644
--- a/generators/client/types.d.ts
+++ b/generators/client/types.d.ts
@@ -3,11 +3,12 @@ import type { ExportApplicationPropertiesFromCommand } from '../../lib/command/i
 import type { CypressApplication } from '../cypress/types.js';
 import type { JavaScriptApplication, JavaScriptSourceType } from '../javascript/types.js';
 import type { PostWritingEntitiesTaskParam } from '../../lib/types/application/tasks.js';
+import type { PartialAngularApplication } from '../angular/types-deprecated.js';
 import type Command from './command.ts';
 
 type ApplicationClientProperties = ExportApplicationPropertiesFromCommand<typeof Command>;
 
-export type ClientApplication = ApplicationClientProperties &
+export type FrontendApplication = ApplicationClientProperties &
   JavaScriptApplication &
   CypressApplication & {
     webappLoginRegExp: string;
@@ -15,6 +16,11 @@ export type ClientApplication = ApplicationClientProperties &
     clientFrameworkBuiltIn?: boolean;
   };
 
+/**
+ * Deprecated in favor of frontend application.
+ */
+export type ClientApplication = JavaScriptApplication & PartialAngularApplication;
+
 export type ClientResources = {
   /**
    * resources added to root file.