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  1. DNN Community

    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 …

  2. Download & Install DNN — Setup Guide for Windows/IIS & SQL Serve

    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. DNN Forums — Community Support for Install, Development & Admin

    Apr 15, 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.

  4. DNN Releases — Version History, Notes & Downloads

    Apr 14, 2026 · Browse DNN Platform releases with version history, release notes, security fixes, breaking changes, upgrade guidance, and download links.

  5. Releases -- DNN Docs

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

  6. DNN Release

    DNN 9.13.10 is now available, which includes fixes for all known security vulnerabilities. For sites not already on DNN 10, this upgrade is a must-have. Brian Dukes 2025-12-16 7 DNN Release

  7. Official DNN Platform Documentation -- DNN Docs

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

  8. Site assets file upload failing - DNN Open Source Community - DNN

    May 19, 2022 · I recently followed the documentation to increase the allowed file size upload limit, and that seemed to work, but now I'm running into an "upload failed" message for a file that's within the …

  9. Class CaptchaControl -- DNN Docs

    Namespace: Dot Net Nuke. UI. Web Controls Assembly: DotNetNuke.dll Syntax

  10. DNN Platform Upgrades -- DNN Docs

    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.