key new features introduced in Angular v18

Signal-based APIs 

Angular v18 introduces new signal-based APIs that track state changes throughout an application, optimizing rendering updates.

Experimental zoneless support

Angular v18 includes an experimental preview of zoneless Angular, aiming to make Zone.js optional in the future.

Enhanced server-side rendering with hydration support

Angular v18 offers improved DevTools support for hydration, hydration support for all Angular Material Components, and i18n block hydration support.

Partial hydration support

Angular v18 is working on introducing partial hydration support, allowing developers to specify portions of their application to leave dehydrated.

Incremental improvements

Angular v18 includes incremental improvements such as zones event coalescing, TypeScript 5.4 support, default value for ng-content, and a new global observable for Angular Forms.

These features aim to enhance the developer experience, improve performance, and prepare Angular for the future of web development.