Updating to Angular Version 9

This guide contains everything you need to know about updating to the next Angular version.

Updating CLI Apps

If your application uses the CLI, you can update to version 9 automatically with the help of the ng update script:

ng update @angular/cli@next @angular/core@next

During the RC period, the `@next` tag is required. This flag will no longer be necessary once version 9 final is released.

The script will run a series of small migrations that will transform the code of your application to be compatible with version 9.

If you're curious about the specific migrations being run (e.g. what code is changing and why), see the automated migrations section.

{@a breaking-changes}

Angular now compiles with Ivy by default. See Ivy compatibility section.
Typescript 3.4 and 3.5 are no longer supported. Please update to Typescript 3.6.
tslib is now listed as a peer dependency rather than a direct dependency. Users not using the CLI will need to manually install tslib via yarn add tslib or npm install tslib --save.

{@a deprecations}

API	Replacement	Notes
`entryComponents`	none	See `entryComponents`
`ANALYZE_FOR_ENTRY_COMPONENTS`	none	See `ANALYZE_FOR_ENTRY_COMPONENTS`
`ModuleWithProviders` without a generic	`ModuleWithProviders` with a generic	See `ModuleWithProviders` section
`esm5` and `fesm5` distribution in `@angular/*` npm packages	`esm2015` and `fesm2015` entrypoints	See `esm5` and `fesm5`
`TestBed.get`	`TestBed.inject`	Same behavior, but type safe.

{@a removals}

Package	API	Replacement	Notes
`@angular/core`	`Renderer`	`Renderer2`	Migration guide.
`@angular/core`	`RootRenderer`	`RendererFactory2`	none
`@angular/core`	`RenderComponentType`	`RendererType2`	none
`@angular/common`	`DeprecatedI18NPipesModule`	`CommonModule`	none
`@angular/common`	`DeprecatedCurrencyPipe`	`CurrencyPipe`	none
`@angular/common`	`DeprecatedDatePipe`	`DatePipe`	none
`@angular/common`	`DeprecatedDecimalPipe`	`DecimalPipe`	none
`@angular/common`	`DeprecatedPercentPipe`	`PercentPipe`	none
`@angular/forms`	`NgFormSelectorWarning`	none
`@angular/forms`	`ngForm` element selector	`ng-form` element selector	none
`@angular/service-worker`	`versionedFiles`	`files`	In the service worker configuration file `ngsw-config.json`, replace `versionedFiles` with `files`. See Service Worker Configuration.

{@a ivy}

In Version 9, Angular Ivy is the default rendering engine. If you haven't heard of Ivy, you can read more about it in the Angular Ivy guide.

For guidance on debugging and a list of minor changes associated with Ivy, please see our compatibility guide.

For help with opting out of Ivy, please see the instructions here.

{@a migrations}

Read about the migrations the CLI handles for you automatically: