Using a React 16 'Portal' to Do Something Cool — Portals provide a first-class way to render children into a DOM node that exists outside the DOM hierarchy of the parent component.

React 16.1 Released — Mostly tweaks and minor improvements (covered in the release notes). Also, as of this release, React is no longer released on Bower.

🎉 New, Updated: Deep JavaScript Foundations with Kyle Simpson — Join Kyle Simpson, author of the popular “You Don’t Know JavaScript” book series, as he deep dives into JavaScript's core mechanics like scope, closure, this and prototypes ...plus new features in ES6 and more.

Exploring Some Advanced React Router Concepts — Including code splitting, animated transitions, scroll restoration, and recursive paths.

8 Tips in 20 Minutes For Getting Better At React — Covers inline conditionals, linting, using the React DevTools, component types, and more.

React 16 Error Boundaries - Recover Gracefully — On React 16? Learn how to start using error boundaries.

React Native vs Real Native Apps — Highlights the theoretical and practical aspects of using React Native in comparison to Swift.

React Log: React Rendering to the Console — A component that’s not rendered into the DOM but instead to the console.

react-reconciler: A Way to Create Custom React Renderers — An experimental package now included with React 16.1.