A new approach to web development.

A client that uses magento on a CDN was having problems with releasing new code (specifically to CSS and JS files).  When magento uses merged files it keeps the merged filename the same regardless of the contents of the file or release of code.  This is especially nasty if you have a long TTL cache on client browsers.  

In our deployment process we maintain a release.txt file to ensure all of the frontend servers are running the exact release.  We are going to use that file to increment our merged css/js files - however you could use something like a md5 checksum of the contents and append it to the file name.  

Anyway, here's our solution: