diff --git a/docs/en/CLI.md b/docs/en/CLI.md
index 6c903575db..7dccf4ee6d 100644
--- a/docs/en/CLI.md
+++ b/docs/en/CLI.md
@@ -128,9 +128,35 @@ abp update [options]
 * `--npm`: Only updates NPM packages.
 * `--nuget`: Only updates NuGet packages.
 
+### switch-to-preview
+
+You can use this command to switch your project to latest preview version of the ABP framework packages.
+
+Usage:
+
+````bash
+abp switch-to-preview [options]
+````
+#### Options
+
+`--solution-path` or `-sp`: Specifies the solution (.sln) file path. If not specified, CLI tries to find a .sln file in the current directory.
+
+### switch-to-stable
+
+If you're using the ABP Framework preview packages, you can switch back to stable version using this command.
+
+Usage:
+
+````bash
+abp switch-to-stable [options]
+````
+#### Options
+
+`--solution-path` or `-sp`: Specifies the solution (.sln) file path. If not specified, CLI tries to find a .sln file in the current directory.
+
 ### login
 
-Some features of the CLI requires to be logged in to abp.io platform. To login with your username write 
+Some features of the CLI requires to be logged in to abp.io platform. To login with your username write:
 
 ```bash
 abp login <username>
diff --git a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/ProjectBuildArgs.cs b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/ProjectBuildArgs.cs
index 2f79f330e5..ea207bc426 100644
--- a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/ProjectBuildArgs.cs
+++ b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ProjectBuilding/ProjectBuildArgs.cs
@@ -19,7 +19,7 @@ namespace Volo.Abp.Cli.ProjectBuilding
 
         public UiFramework UiFramework { get; set; }
 
-        public MobileApp MobileApp { get; set; }
+        public MobileApp? MobileApp { get; set; }
 
         [CanBeNull]
         public string AbpGitHubLocalRepositoryPath { get; set; }
@@ -36,7 +36,7 @@ namespace Volo.Abp.Cli.ProjectBuilding
             [CanBeNull] string version = null,
             DatabaseProvider databaseProvider = DatabaseProvider.NotSpecified,
             UiFramework uiFramework = UiFramework.NotSpecified,
-            MobileApp mobileApp = MobileApp.ReactNative,
+            MobileApp? mobileApp = null,
             [CanBeNull] string abpGitHubLocalRepositoryPath = null,
             [CanBeNull] string templateSource = null,
             Dictionary<string, string> extraProperties = null)