Modern CMS (content management systems) allow website owners to manage the content of their websites without technical knowledge of HTML, and this is exactly what DNN CMS (DotNetNuke) does too. DNN’s functionality for a website’s content management can be extended by adding in third party applications. But upgrading the DNN modules can be a bit tricky at times and certain measures have to be taken to avoid mishaps. Here are some tips to help you upgrade your DNN modules.