Windows Phone 7.1 SDK Release Candidate (RC) is now available for download. Microsoft released this version with “Go Live” license, that means, you can now build production applications and submit them to the Marketplace. This build also empowers the developer to build applications and games both for WP7.0 and WP7.1 devices. In this post, find the link to the web installer and standalone/offline installer. Download, install and start building your games or applications.