Angular12 min read

Angular 21: What's New and Latest Features

Discover Angular 21's latest features and improvements. Learn about new APIs, performance enhancements, and modern Angular development patterns. Stay up-to-date with the latest Angular release.

Lisa Anderson

December 18, 2025

0.0k0

Angular 21 brings exciting new features and improvements. If you're building Angular apps in 2025, you need to know what's new. Let's explore the latest features and how they make development easier and faster.

What's New in Angular 21?

Angular 21 introduces improved performance, new APIs, better developer experience, and modern features. The framework continues to evolve, making it easier to build scalable applications.

Performance Improvements

Angular 21 includes optimizations for faster rendering, smaller bundle sizes, and improved change detection. These improvements happen automatically, but understanding them helps you write better code.

New APIs and Features

Learn about new directives, improved dependency injection, and modern patterns. Angular 21 makes common tasks easier and provides better tools for building complex applications.

Migration and Compatibility

I'll show you what's changed and how to migrate from older versions. Most changes are backward compatible, but knowing what's new helps you take advantage of improvements.

Getting Started

I'll walk you through setting up Angular 21 and using the new features. This is how you build modern Angular applications in 2025.

#Angular#Angular 21#New Features#Modern Angular

Common Questions & Answers

What are the main new features in Angular 21?

Angular 21 introduces improved performance with better change detection, smaller bundle sizes, new directives for common patterns, improved dependency injection APIs, better TypeScript support, and enhanced developer tooling. The framework focuses on developer experience and runtime performance.

typescript

Run Explain

// Angular 21 example with new features
import { Component, signal } from '@angular/core';

@Component({
  selector: 'app-user',
  template: `
    <div>
      <h1>{{ name() }}</h1>
      <button (click)="updateName()">Update</button>
    </div>
  `
})
export class UserComponent {
  // Signals for reactive state
  name = signal('Angular 21');
  
  updateName() {
    this.name.set('Updated Name');
  }
}

// Improved dependency injection
export class UserService {
  constructor() {
    // New DI features
  }
}

How do I upgrade to Angular 21?

Use Angular CLI update command: ng update @angular/core @angular/cli. This automatically updates dependencies and makes necessary code changes. Check the migration guide for breaking changes. Most applications upgrade smoothly with minimal code changes.

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