Angular 21 Rolls Out Modern Testing, Headless A11y Components, and AI Tools
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This story was originally published on HackerNoon at: https://hackernoon.com/angular-21-rolls-out-modern-testing-headless-a11y-components-and-ai-tools.
Angular v21 brings signal-driven forms, new accessibility tools, AI-powered CLI features, zoneless apps, and modern testing with Vitest.
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Angular v21 isn’t about one headline feature — it’s a broad shift toward reactive patterns, accessible UI, AI-aware tooling, modern testing, and simpler, zoneless change detection. Together, these updates mark Angular’s move toward a more predictable, modern, and developer-aligned framework.
![Clean Code: Interfaces in Go - Why Small Is Beautiful [Part 3]](https://img.transistor.fm/L1TIkcfWlXcdwN4H5_yxz3C_T_bYWcn1ZDA_mLJ4xkY/rs:fill:0:0:1/w:1400/h:1400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9hY2E4/NGViYmNkNWZkNDIw/NWZkMmM5NjQ0ZWNm/ZjgwOC5wbmc.jpg "Clean Code: Interfaces in Go - Why Small Is Beautiful [Part 3]")
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