Yes. DNN Platform is a free, open-source CMS under the MIT License.

What is the tech stack for DNN?

DNN runs on ASP.NET (.NET Framework 4.8+) with Microsoft SQL Server (2017+ or Azure SQL).

DNN Platform is community-led and a member project of the .NET Foundation.

What’s the difference between DNN and Evoq?

DNN Platform is the open-source core that's been wildly popular and adopted for over 20 years. Evoq is a commercial offering maintained by DNN Software (IgniteTech) that builds on DNN.

DNN Forums

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Forum: Upgrading DNN Platform

	Replies	Views	Subscribers	Last Post
Action Menus Started By Byronp After upgrading from 9.1 to 9.3.2 our Action Menus on one of our Portals appear initially but then disappear once you hover over the container. If you enter the container from the top right they will not disapear but if you enter from anywhere else they flash and then never come back. They work as intended on our second portal that has a different set of skins. I'm assumming this might mean it is skin related. We also have an image slider on our site that has broken. It runs via Java ...	4	3374	1	10/21/2019 8:06 PM by Byronp
Issue with Site Settings after upgrade to 9.2.2 Started By Tom Melkonian Hi - I'm testing the upgrade process from DNN 9.1.1 to 9.2.2. I've uninstalled all unused modules and upgraded all the ones in use, and added the newtonsoft patch. Ran the upgrade and things are looking good and working well. However, when I go to Settings >> Site Settings, something strange occurs - The blue 'loading' bar that shows up on top of the 'SiteSettings' window, just keeps flashing (this is the blue bar that says 'it appears you have a slow connection' sometimes). In my case, it ju...	2	2782	1	10/9/2019 5:14 PM by Tom Melkonian
Image Not Uploading in Image Manager Started By Rachel Dsouza Hi, I Have updated DNN version from 7 to 8 and then from 8 to vesrion 9. I was trying to upload an Image through the image manager but it was giving me an error saying 'Cannot deserialize dialog parameters. Please refresh the editor page.' Im trying to solve this problem since a long time. Any help would be appreciated. Thanks	4	3088	0	10/17/2019 6:32 AM by Rachel Dsouza
DNN 9.1.1 -> 9.3.2 Started By Andreas Hi, Am currently facing a problem trying to upgrade our DNN from 9.1.1 to 9.3.2 as suggested by the upgrade path. After launching 'https://127.0.0.1/Install/install.aspxmode=upgrade' I got some exceptions because of multiple SharpZipLib.Dll instances. I deleted ICSharpCode.SharpZipLib.dll and that seems to have fixed the error. When launching it again, I get another exception in ReportsController.vb: Exception type: HttpCompileException Exception message: D:\Inetpub\wwwroot...	8	4721	1	10/14/2019 9:19 PM by Andreas
Error occurring on Dnnspot.Sitemap module while Upgrading to latest version Started By dnn developer Hi, I am upgrading my 8.0.4 solution to latest stable version of DNN - 9.4.1. I have followed the suggested upgrade path from this site - Suggested Upgrade Path. I am not able to identify the root cause but these are the issues I am facing : While upgrading from 9.1.1 to 9.3.1, Issue with DNNSpot.Sitemap module. - Not able to Edit/Delete/Open Settings after log into the backend. Not able to open /Sitemap.aspx - Redirecting to /Default.aspxtabid={pagetabid} and showing 'A critical...	17	8952	2	10/15/2019 6:44 AM by dnn developer
Upgrade 9.2.2 > 9.4.1 - "Could not load file or assembly 'netstandard, Version=2.0.0.0" Started By DNNDude Hi Nukers, Tried an upgrade today from 9.2.2 to 9.4.1 and as usual, the upgrade didn't work reporting the following error: Server Error in '/' Application. Could not load file or assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' or one of its dependencies. The system cannot find the file specified. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about t...	4	4295	1	10/6/2019 7:00 PM by DNNDude
Upgrading 4.9.5 to 5.4.4 Started By Andreas I am trying to upgrade an old DNN site from 4.9.5 to 5.4.4, with the aim of ultimately getting to the current DNN version. The upgrade produces two errors: Executing Application Upgrades: 05.01.00 Error! Executing Application Upgrades: 05.03.00 Error! I have seen quite a few status reports having those two fail without finding an explanation or solution for it. Am I right in my assumption that during that phase, changes to web.config are being made I checked the DNN events after...	23	10227	1	10/2/2019 6:34 AM by Andreas
DNN Upgrade to 9.04 Started By Heather Hi, Our DNN instance had a red 'critical update' message on the admin page so I went to run the update. This led me to a page to upgrade to DNN9.04. The upgrade ran smoth without errors but now one of our websites (Portal2) is no long bringing in content. It displays an error 129 in the url. Also on that page there is a login button at the bottom and when I click on it I get a blank pop up. http://supportsite.altara...20occurred&content=0 The errors I find in the Admin log are ...	1	6344	1	10/7/2019 4:17 PM by Heather
cannot login using super admin Started By dev it hi I have an error after I've upgraded dnn when I'm trying to login using super admin in the page coming err_too_many_redirects and in the log this message is coming [ERROR] DotNetNuke.Services.Exceptions.Exceptions - ~/Default.aspxtabid=65&def=ErrorMessage System.Web.HttpException (0x80004005) : The controls collection cannot be modified because the control contains code blocks (i.e. ). at System.Web.UI.ControlCollection.Add(Control child) at DotNetNuke.Services.Exceptio...	2	3043	2	9/5/2019 3:25 AM by dev it
Unable to deploy modules in child portals. Started By Peter Goodhue We recently upgraded to DNN 9.3.2 from 8.0.4 We support multiple child sub portals. After creating a new child subportal we attempted to add an html module to the home page with the Xcillion skin. The module shows in the page advance settings but does not render on the page. When deploying the module to a page, an outline appears then runs off the page to top left. The above behavior occurs with all modules attempting to deploy to a page. We checked the permissions on the extensio...	6	4148	4	9/3/2019 12:53 PM by Peter Goodhue

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Forum: Upgrading DNN Platform

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