DotNetNuke Professional Edition 5.1 offers support for advanced Google Analytics functionality, content approval that allows administrators to create custom workflows, file access permissions that provide more granular security rights, and file integrity checking that reviews files in the installation and reports any inconsistencies that may impact website reliability, as well as network-based health monitoring that pings the website periodically to identify failures and notify the site owner, ensuring the site stays in web server memory for faster user accessibility. It also includes a vulnerability database that cross references each customer's product version teasily identify potential issues.

DotNetNuke Professional Edition is also designed for organizations with high website traffic, offering distributed caching for more efficient resource usage in web farms. DotNetNuke founder Shaun Walker explains that the professional edition helps ensure a web application can handle high traffic scenarios by integrating a caching solution into the application architecture to keep the most commonly used data in memory.

"The Microsoft ASP.NET framework (which DotNetNuke is built upon) provides a basic caching solution but it is limited to a single web server because it has no built-in capability to synchronize cache items across multiple web servers," Walker said in a statement. "DotNetNuke has built an extra layer on top of the ASP.NET caching solution which allows for web farm synchronization using 3 different approaches: database polling, file system dependency, and web service. The web service solution was developed specifically for DotNetNuke Professional Edition 5.1, and is the optimal solution for serious business environments."

We have put out the release candidate today and are working to resolve one final issue for final release.