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

Ask questions about your website to get help learning DNN and help resolve issues.

Forum: Upgrading DNN Platform

	Replies	Views	Subscribers	Last Post
Upgrade from DNN 09.13.09 to 10.01.02 and have encountered an issue with the Persona Bar. Started By Jeff89453 Hello DNN Community, I’m currently working through an upgrade from DNN 09.13.09 to 10.01.02 and have encountered an issue with the PersonaBar . Specifically, the Page/GetPageList endpoint is returning an HTTP 500 error when accessed through the Persona Bar. At the moment, I have not been able to locate any relevant or helpful entries in the _default/logs directory that would indicate the root cause. The affected endpoint is: /API/PersonaBar/Pages/GetPageListsearchKey= All other...	1	146	2	3/5/2026 12:11 PM by Jeff89453
Issue upgrading from 09.13.09 to 10.02.01 70% Installing JavaScript_Library - jQueryUI_01.14.01_Install.zip Started By Bryan I am currently attempting to upgrade an old instance of DNN. I have copied my files and DB and spun up a copy of my 09.09.01 instance and have successfully upgraded this to 09.13.09. I have then attempted to upgrade to 10.02.01, but the installation is currently hung at '70 Installing JavaScript_Library - jQueryUI_01.14.01_Install.zip' with total time sitting at over 20 minutes, which I imagine will time out shortly.	1	130	1	2/17/2026 11:49 PM by Bryan
DNN Version not being stored in table after upgrade Started By Bryan I'm currently in the process of upgrading an old DNN instance from 9.1.1 through to 10.2.2 and am coming a little unstuck. Process so far; First step, upgrade from 9.1.1 to 9.13.9 Backup 9.2.2 files and DB Create a new website instance, restore DB and copy over files Edit web config Start copied site (DNNv2), all looks good. Download DNN_Platform_9.13.9_Upgrade zip, unblock and then extract files. copy files over DNNv2 Visit/Install/UpgradeWizard.aspx and run the upgrade...	4	210	2	2/15/2026 6:22 PM by Bryan
DNN 5 Upgrade Path Started By Prajjwal I am upgrading my dnn5.6 site. i have created a dev enviroment which is currently on dnn10.2 but the prod is 5.6. what will be the next step to migrate prod safely without any data loss.	10	295	0	2/11/2026 5:12 AM by Prajjwal
Errors when trying to attempt to upgrade to vers. 10.2.1 Started By alexismaria Just wondering what this error message means when attempting to upgrade to version 10.2.1 from 9.13.9: The error that appears in the log 'The Controls collection cannot be modified because the control contains code blocks (i.e. )' For this website: https://journal.nafo.int Any suggestions to get this up to version 10 is welcome. Not sure what this error means.	5	219	1	1/28/2026 2:52 PM by alexismaria
Access denied error after use backup files Started By JA Tarte I want to share an experience I had that was eventually resolved by following a series of steps that I think are worth knowing for those who aren't so experienced. I was using DNN Platform v.09.08.01 and proceeded to perform the available upgrades in v.09, which is higher than the version I was using, since my Windows Server and SQL Server don't support the DNN Platform v10.0 upgrade. As a matter of habit, I always perform the upgrades one by one, with the corresponding backup of the files...	1	255	0	2/4/2026 8:03 PM by JA Tarte
DnnJsInclude and Skinpath Started By Johnhols Just upgraded from 10.1.1 to 10.2.0 then to 10.2.1 i had a number of js files included in the .ascx files via the following format:- These files are no longer loading, to work around this for now i've moved the files so they are off the root folder Ideally, i would prefer them to stay under the skin path, as we sometimes have a variation based on the skin	3	152	1	2/3/2026 6:57 AM by Johnhols
HtmlSanitizer error with DNNSharp Action Form Started By Johnhols After upgrade to 10.2.1 , i'm getting the following error when submitting a DNNSharp Action form Could not load type 'Ganss.XSS.HtmlSanitizer' from assembly 'HtmlSanitizer, Version=9.0.0.0, Culture=neutral, PublicKeyToken=61c49a1a9e79cc28 Is this an DNNSharp problem or a DNN problem	5	297	1	2/4/2026 12:17 PM by Johnhols
Issue in Hotcakes (Third party ) after upgrading from 9.13.3 to 10.2.1 Started By Manish Garg Team, when i upgrade dnn from 9.13.3 to 10.2.1 I am facing null below is my code which is giving exception protected override void OnInit(EventArgs e) { base.OnInit(e); var crl = new ClientResourceLoader(); Page.Form.Controls.Add(crl); Page.Form.Controls.Add(_phDependencies); _ltMiniProfiler = new LiteralControl(); Page.Form.Controls.Add(_ltMiniProfiler); var cds = ClientDependencySettings.Instance; if (cds != null) { HccP...	1	120	1	1/28/2026 10:15 AM by Manish Garg
Issue in Hotcakes after upgrading from 9.13.3 to 10.2.1 Started By Manish Garg Team My hotackes is working till dnn version 9.13.3. but when I upgrade to 10.2.1 I am getting null refrence error and this is code which i am using in hotcakes protected override void OnInit(EventArgs e) { base.OnInit(e); var crl = new ClientResourceLoader(); Page.Form.Controls.Add(crl); Page.Form.Controls.Add(_phDependencies); _ltMiniProfiler = new LiteralControl(); Page.Form.Controls.Add(_ltMiniProfiler); var cds = ClientDependencySettings.In...	1	183	1	1/28/2026 10:27 AM by Manish Garg

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Forum: Upgrading DNN Platform

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