Angular Upgrade Planner

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 11 requires TypeScript 4.0 and drops support for IE9, IE10, and IE mobile.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@11 @angular/cli@11

Some async test helpers and CollectionChangeRecord are deprecated. Update to the recommended TestBed patterns.

webpack 5 support is available (experimental) via a package.json resolutions entry. Hot Module Replacement can be enabled with ng serve --hmr. Automatic inline fonts and faster builds are included.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 12 requires Node.js 12.14 or newer and TypeScript 4.2+.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@12 @angular/cli@12

Angular 12 deprecates View Engine; the framework is effectively Ivy-only going forward. Production build becomes the default for ng build, and IE11 support is deprecated.

node-sass is no longer supported. Run the Sass migration and switch your styles to dart-sass. Nullish coalescing (??) is now supported in templates.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 13 requires a current Node.js (12.20+, 14.15+, or 16.10+) and TypeScript 4.4. New apps get RxJS 7.4; existing apps can stay on RxJS 6.5+.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@13 @angular/cli@13

View Engine is removed from the framework and libraries are now published in Ivy partial-compilation format. Older View Engine libraries still work through ngcc until v16. Internet Explorer 11 support is removed, and string-based loadChildren must use dynamic import().

ModuleWithProviders now requires a generic type, entryComponents is no longer needed/used, and renderModuleFactory is removed. The migration fixes most of these automatically.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 14 requires Node.js 14.15+ or 16.10+ and TypeScript 4.6 to 4.8.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@14 @angular/cli@14

FormControl, FormGroup, and FormArray are now strictly typed. Existing forms code may stop compiling; the migration swaps to Untyped* variants so you can adopt typing gradually.

Standalone components/directives/pipes arrive in developer preview, along with the inject() function, NgOptimizedImage (preview), functional Router guards (CanMatch), and the page Title strategy.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 15 requires a current Node.js (14.20+, 16.13+, or 18.10+) and TypeScript 4.8 or 4.9.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@15 @angular/cli@15

Angular Material components are rebuilt on Material Design Components (MDC). DOM structure and CSS change — audit custom Material styles and run the Material migration. Legacy components are available under @angular/material/legacy-* temporarily.

bootstrapApplication, provideRouter, provideHttpClient, functional Router guards, the directive composition API, and NgOptimizedImage are all stable. Consider adopting standalone bootstrap.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 16 requires Node.js 16.14+ or 18.10+ and TypeScript 4.9.3 up to 5.1.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@16 @angular/cli@16

Non-destructive hydration is available in developer preview with provideClientHydration (SSR still uses @nguniversal in v16). An esbuild-based build and dev server is also in developer preview.

The Angular Compatibility Compiler (ngcc) is removed, so any dependency still shipped in View Engine format fails to build. Update or replace those libraries before this hop.

Angular Signals arrive in developer preview, along with takeUntilDestroyed/DestroyRef, required inputs, and binding Router data/params/title to component inputs via withComponentInputBinding. Self-closing tags are supported.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 17 requires Node.js 18.13+ or 20.9+ and TypeScript 5.2 up to 5.4.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@17 @angular/cli@17

New applications use the esbuild + Vite application builder (@angular-devkit/build-angular:application) with faster builds and a Vite dev server. Existing apps keep the webpack builder until migrated. SSR moves to the new @angular/ssr package and is offered during ng new.

New built-in control flow replaces *ngIf/*ngFor/*ngSwitch — run ng generate @angular/core:control-flow to migrate templates. Deferrable views (@defer) enable lazy loading of template blocks.

ng generate @angular/core:control-flow

signal() and computed() are stable (effect() stays in developer preview until v20), afterRender/afterNextRender hooks are added in developer preview, and the View Transitions API is supported via withViewTransitions.

Commit or stash all work, then make sure you are on the latest minor/patch of your current major before running ng update. Upgrade exactly one major at a time and run the app/tests after each hop.

Angular 18 requires Node.js 18.19.1+, 20.11.1+, or 22, and TypeScript 5.4 or 5.5.

Update the core framework and CLI together. This applies the official automatic migration schematics for this version.

ng update @angular/core@18 @angular/cli@18

provideExperimentalZonelessChangeDetection lets you trial zoneless apps, and event replay for SSR is available in preview. Review zone-dependent code before trying zoneless.

Angular Material 3 is stable, the build tooling is published as @angular/build, deferrable views and built-in control flow are stable, ng-content supports default/fallback content, and route redirects can be functions.