In this week’s ng-news: - The decision is final — Angular 21 will use **Vitest** as its default testing framework - Why Vitest makes sense and how it compares to Jasmine, Karma, and Jest - And a new issue from Alex Rickabaugh about the challenges of **content projection** in Angular 🔗 Vitest 4 release notes: 🔗 Angular GitHub issue on content projection: #Angular #ngnews #Vitest #Angular21 #Testing #Jest #Vite 0:00 Introduction 0:06 Vitest as the new Testing Framework 2:43 Issues with Content Projection 3:00 Good Bye