An overview of what's new in language features, frameworks, runtimes, build tools, testing, and more.

Frontend Masters is an online learning platform offering  courses on frontend development technologies such as JavaScript, HTML, CSS, React, and Vue.js. Readers can learn about advanced frontend concepts, best practices, and modern development workflows from industry experts. With video lectures, exercises, and real-world projects, Frontend Masters provides  guidance and expertise for mastering frontend development skills.

Frontend Masters

A comprehensive 2026 overview of the JavaScript ecosystem covering ECMAScript 2025 and upcoming ES2026 features (Temporal API, Iterator Helpers, Set methods, RegExp.escape, Promise.try, explicit resource management), major framework updates (React 19, Vue 3.6, Svelte 5), JavaScript runtimes (Node.js native TypeScript, Bun acquired by Anthropic, Deno v2), build tools (Vite v8 with Rolldown, Turbopack as Next.js default), TypeScript v6 and the upcoming Go-based compiler in v7, testing trends (Vitest, Playwright), meta-framework news (Next.js 16, Astro acquired by Cloudflare, Remix going React-free), and npm supply chain security incidents.

What To Know in JavaScript (2026 Edition) – Frontend Masters Blog