UPDATE: The documentation has now been updated and can be found here: https://world.optimizely.com/documentation/developer-guides/search-navigation/getting-started/creating-your-project/ Optimizely CMS for .NET 5.0 is a very exciting thing. ...

In Optimizely CMS 11, developers could extend functionality with the Admin mode of the CMS by decorating standard MVC Controllers with the GuiPlugIn attribute.  The pages would then be rended within an iFrame to preserve the admin menus.  With the...