VersionEye is a cross-platform search engine and crowdsourcing app for open source libraries. Follow any of the 500K Java, Ruby, Python, Node.JS, PHP and R libraries that VersionEye watches, and you’ll receive notifications as soon as the next versions of the libraries you're following become available. VersionEye can also monitor your projects on GitHub and help you on a project base to stay up-to-date with your Open Source Libraries.