Facebook's popular open source React library for building user interfaces, for example, weighs in at 100 kilobytes. Throw in some other tools and graphics, and soon you’re talking many megabytes.

Patent clauses prompted many open-source projects to stay clear of the library or ban its use in future frameworks.

The next version of the popular React JavaScript library -- React 16, or React Fiber, featuring a major tech rewrite -- has reached release candidate status, amid ongoing licensing issues that are ...

What’s maybe even more important, though, is that the React ecosystem continues to grow on the open-source side, too. Facebook says more than 600 people have committed code to React Native’s ...