From Beacoup’s blog:

For the last nine months, I’ve been working with Ben and our team of fantastic contributors to modularize the Grunt codebase. Today, we’re happy to announce that Grunt v0.4 has been published to npm. Hold on to your hats, a lot has changed!

Lot of changes in Grunt.js. If you do JavaScript development, you should be using Grunt to make your life easier. If you’re already using Grunt, this is a must read, as there are a lot of changes in how it works, and how it’s installed.