TSLint and Codelyzer have been officially deprecated . Angular now recommends migrating to the community-driven angular-eslint stack.

A preview of the new Ivy-native language service allows for more accurate type checking and generic type inference directly inside templates. Breaking Changes & Deprecations Angular 11 Features: Breaking Changes and New Deprecations

The Angular team completed a massive "triage" effort, addressing every open issue in their core repositories and committing to a two-week turnaround for all future reports.

To speed up the First Contentful Paint (FCP) , the Angular CLI now automatically downloads and inlines fonts used in your application during the build process.

You can now enable Hot Module Replacement (HMR) simply by running ng serve --hmr . This allows you to update code and styles instantly without a full browser refresh, preserving the application state.

Released on November 11, 2020, Angular 11 arrived with a heavy focus on the developer experience (DX), triaging a massive backlog of community requests and introducing significant performance optimizations. Key Performance & Tooling Updates

Build cycles are now up to 4x faster thanks to optimizations in the Angular Compatibility Compiler ( ngcc ) and the official move to TypeScript 4.0 .