Previous to Angular 19, when server-side rendering is enabled, by default Angular will server-side render all the parameterized routes and pre-render all routes with out parameters. With the route-level render mode, Angular offers a brand new interface, ServerRoute, that enables builders to configure whether or not particular person routes must be server-side rendered, prerendered, or rendered on the consumer aspect.
Additionally in Angular 19, occasion replay is enabled by default. A typical downside in server-side-rendered functions is the hole between a person occasion and the browser downloading and executing code answerable for dealing with the occasion. An occasion dispatch library was shared final Might to deal with this use case. Occasion dispatch captures preliminary load occasions and replays them when the code answerable for dealing with occasions is accessible.
Angular 19 is sizzling module alternative (HMR) for kinds out of the field. The discharge allows experimental assist for template HMR behind a flag. Earlier than this enchancment, when a developer modified the type or template of a part and saved the file, the Angular CLI would rebuild the app and ship a notification to the browser, which might refresh. The brand new HMR will compile the type or template refreshed, ship the outcome to the browser, and patch the appliance with no web page refresh and any state loss. This offers a sooner turnaround and uninterrupted movement state.