@angular-devkit/build-angular

Support for karma-coverage-instanbul-reporter has been dropped in favor of the official karma coverage plugin karma-coverage.

Support for node-sass has been removed. sass will be used by default to compile SASS and SCSS files.

NG_PERSISTENT_BUILD_CACHE environment variable option no longer have effect. Configure cli.cache in the workspace configuration instead.

The automatic inclusion of Angular-required ES2015 polyfills to support ES5 browsers has been removed. Previously when targetting ES5 within the application's TypeScript configuration or listing an ES5 requiring browser in the browserslist file, Angular-required polyfills were included in the built application. However, with Angular no longer supporting IE11, there are now no browsers officially supported by Angular that would require these polyfills. As a result, the automatic inclusion of these ES2015 polyfills has been removed. Any polyfills manually added to an application's code are not affected by this change.

With this change a number of deprecated dev-server builder options which proxied to the browser builder have been removed. These options should be configured in the browser builder instead.

With this change we removed several deprecated builder options

extractCss has been removed from the browser builder. CSS is now always extracted.

servePathDefaultWarning and hmrWarning have been removed from the dev-server builder. These options had no effect.

Deprecated @angular-devkit/build-angular:tslint builder has been removed. Use github.com/angular-eslint/angular-eslint instead.

Differential loading support has been removed. With Angular no longer supporting IE11, there are now no browsers officially supported by Angular that require ES5 code. As a result, differential loading's functionality for creating and conditionally loading ES5 and ES2015+ variants of an application is no longer required.