The Security System does not support a .NET Core WCF server due to .NET Core platform limitations. You can connect a .NET Core client application to a .NET Framework WCF server only.
The outdated Security System based on IPermission, ISecuritySimple, etc. is not supported.
If you create core libraries with the DevExpress.Data.v19.2.dll or DevExpress.Xpo.v19.2.dll assemblies, you may need to create two csproj files: one for .NET Core 3.0+ desktop apps and the other for .NET Standard 2.0 cross-platform apps. For more information, refer to the following Support Center tickets:
The following design-time functionality is not available because of the changes to Visual Studio's designer architecture in .NET Core: Model Editor, Module and Application Designers, Controller & Action designers, EasyTest debugging commands. You can perform related tasks in code or use the standalone Model Editor and TestExecutor tools.
The Template Gallery and its templates are unavailable. To add an XAF Business Object or Controller, invoke the Add New Item... dialog for your project, navigate to the DevExpress | XAF category, and choose an item.
If you use EasyTest, use the AdapterFileName keyword instead of AdapterAssemblyName to specify the path to the WinForms EasyTest adapter. To use the standard adapter, specify the following path: %PROGRAMFILES(x86)%\DevExpress 19.2\NET Core Desktop Libraries\Bin\NetCore\DevExpress.ExpressApp.EasyTest.WinAdapter.v19.2.dll.
The DBUpdater and Model Editor tools do not support 64-bit applications.
When you localize an XAF application, add a DevExpress.WindowsDesktop.XAF.** NuGet package for German, Spanish, Japanese, or Russian or add downloaded satellite assemblies to the application's bin folder.