Upgrades from Version 4.0 should be relatively painless as Web Connection 5.0 for the most part maintains backwards compatibility with Version 4.0. However, in order to take advantage of Web Connection 5.0 features there are a few things that you should do to optimize your applications and allow them to integrate with new tools and the new Web Control Framework.

The topics in this tree describe key changes in the framework that will affect existing applications.