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.

Dec 15, 2025 · 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

Jan 9, 2026 · Browse DNN Platform releases with version history, release notes, security fixes, breaking changes, upgrade guidance, and download links.

The DNN Platform aims to separate the concerns of programmers, designers and content managers as much as possible. So designers should be able to do their job independently from programmers for …

Get quick answers about DNN: installation and upgrades, extensions (modules, themes, providers), security/RBAC, multi-site, performance, and where to get help.

Oct 2, 2001 · Read the latest from the DNN community: release announcements, tutorials, best practices, security notes, events, and contributor spotlights.

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

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.