next-update answers the question: "Is it safe to upgrade my npm module's dependencies?"

Upgrading your library's dependencies can be a scary proposition. Not upgrading your library's dependencies can be even scarier. Thankfully, next-update is here to help. Let's imagine:

You would like to update lodash and async to latest versions, but not sure if this would break anything. With next-update it is easy.

You run the next-update command and it tells you whether or not updating any of your dependencies breaks you tests. If you don't have tests, I guess you should go write some...