This is the official website of the DNN Platform community. DNN Plaform is the largest and most popular open source CMS on the Microsoft ASP.NET stack. As a content management system and web …

Download DNN and install it on Windows/IIS with SQL Server or Azure SQL. Follow prerequisites, folder permissions, IIS bindings, database setup, and the installation wizard to get running fast.

3 days ago · Browse DNN Platform releases with version history, release notes, security fixes, breaking changes, upgrade guidance, and download links.

Apr 22, 2026 · Ask and answer DNN questions. Get help with installation, upgrades, modules, themes, providers, performance, security/RBAC, and administration. Search archives or start a new topic.

The official documentation site for the DNN Platform (formerly DotNetNuke) - the leading open source Microsoft .NET CMS

5 days ago · Read the latest from the DNN community: release announcements, tutorials, best practices, security notes, events, and contributor spotlights.

For DNN Platform versions 10.2.0 and later If you are upgrading from a version of DNN Platform 10.2.0 or later, please follow the detailed steps outlined in the Post-10.

12/23/2025 • 4 minutes to read • Contributors History

Nov 9, 2025 · I’m using DNN v. 10.01.02 (0) and I’m trying to add more panes to my skin, not just the default ContentPane. Basically, I’d like to have a row with a LeftPane and RightPane alongside the …

Apr 14, 2026 · The new DNN Upgrade Process is much better than the old way. It saves you time, can prevent errors, and we've also got some helpful advice for your first time kicking the tires. As a …