We've had support for setting a custom CDN version number for your files so that after a CSS or Javascript update is published you can use that update on the live site. We recently made it even easier to manage the version number. You can now choose to have the version number automaticaly incremented. When you turn the CDN off and then turn it back on the CDN version number will automatically update. One less thing to think about and one less field to update! :) To use this new feature, simply set the "How to set the version value" field to "Auto-increment a version number".