dotnet · jamesmontemagno · Nov 17, 2025 · Nov 17, 2025 · Nov 17, 2025 · Nov 17, 2025
diff --git a/.NET MAUI/sample-code/MauiApp2/MauiApp2.csproj b/.NET MAUI/sample-code/MauiApp2/MauiApp2.csproj
@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
 	<PropertyGroup>
-		<TargetFrameworks>net8.0-android;net8.0-ios;net8.0-maccatalyst</TargetFrameworks>
-		<TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net8.0-windows10.0.19041.0</TargetFrameworks>
-		<!-- Uncomment to also build the tizen app. You will need to install tizen by following this: https://github.com/Samsung/Tizen.NET -->
-		<!-- <TargetFrameworks>$(TargetFrameworks);net8.0-tizen</TargetFrameworks> -->
+		<TargetFrameworks>net10.0-android;net10.0-ios;net10.0-maccatalyst</TargetFrameworks>
+		<TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net10.0-windows10.0.19041.0</TargetFrameworks>
 
 		<!-- Note for MacCatalyst:
 		The default runtime is maccatalyst-x64, except in Release config, in which case the default is maccatalyst-x64;maccatalyst-arm64.
@@ -35,7 +33,6 @@
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">21.0</SupportedOSPlatformVersion>
 		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</SupportedOSPlatformVersion>
 		<TargetPlatformMinVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</TargetPlatformMinVersion>
-		<SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tizen'">6.5</SupportedOSPlatformVersion>
 	</PropertyGroup>
 
 	<ItemGroup>

diff --git a/.NET/sample_code/MyConsoleApp/MyConsoleApp/MyConsoleApp.csproj b/.NET/sample_code/MyConsoleApp/MyConsoleApp/MyConsoleApp.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

diff --git a/.NET/sample_code/MyPasswordGenerator/MyPasswordGenerator/MyPasswordGenerator.csproj b/.NET/sample_code/MyPasswordGenerator/MyPasswordGenerator/MyPasswordGenerator.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

diff --git a/.devcontainer/ai/Dockerfile b/.devcontainer/ai/Dockerfile
@@ -1,7 +1,7 @@
-FROM mcr.microsoft.com/dotnet/sdk:7.0
+FROM mcr.microsoft.com/dotnet/sdk:10.0
 RUN wget https://packages.microsoft.com/config/debian/11/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
 RUN dpkg -i packages-microsoft-prod.deb
 RUN rm packages-microsoft-prod.deb
-RUN apt update && apt upgrade -y && apt install unzip curl dotnet-sdk-6.0 -y
+RUN apt update && apt upgrade -y && apt install unzip curl -y
 RUN dotnet tool install -g mlnet-linux-x64
 ENV PATH="$PATH:/root/.dotnet/tools"
diff --git a/.devcontainer/base/devcontainer.json b/.devcontainer/base/devcontainer.json
@@ -3,7 +3,7 @@
 {
 	"name": ".NET Beginner Series",
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
-	"image": "mcr.microsoft.com/devcontainers/dotnet:0-7.0",
+	"image": "mcr.microsoft.com/devcontainers/dotnet:0-10.0",
 
 	// Features to add to the dev container. More info: https://containers.dev/features.
   "features": {},

diff --git a/.github/workflows/build-validation.yml b/.github/workflows/build-validation.yml
@@ -0,0 +1,208 @@
+name: Build Validation.
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+
+jobs:
+  build-dotnet-samples:
+    name: Build .NET Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build MyConsoleApp
+      run: dotnet build ".NET/sample_code/MyConsoleApp/MyConsoleApp.sln"
+
+    - name: Build MyPasswordGenerator
+      run: dotnet build ".NET/sample_code/MyPasswordGenerator/MyPasswordGenerator.sln"
+
+  build-blazor-samples:
+    name: Build Blazor Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build Blazor - Handling Events
+      run: dotnet build "Frontend Web with Blazor/sample-code/handling-events/BlazorApp/BlazorApp.sln"
+
+    - name: Build Blazor - Data Binding
+      run: dotnet build "Frontend Web with Blazor/sample-code/data-binding/BlazorApp/BlazorApp.sln"
+
+    - name: Build Blazor - Components
+      run: dotnet build "Frontend Web with Blazor/sample-code/introducing-blazor-components/BlazorApp/BlazorApp.sln"
+
+    - name: Build Blazor - Pages Routing Layouts
+      run: dotnet build "Frontend Web with Blazor/sample-code/pages-routing-layouts/BlazorApp/BlazorApp.sln"
+
+    - name: Build Blazor - Working with Data
+      run: dotnet build "Frontend Web with Blazor/sample-code/working-with-data/BlazorMovieApp/BlazorMovieApp.sln"
+
+    - name: Build Blazor - Render Modes
+      run: dotnet build "Frontend Web with Blazor/sample-code/render-modes/BlazorApp/BlazorApp.sln"
+
+  build-webapi-samples:
+    name: Build Web API Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build MyNewApp Web API
+      run: dotnet build "Backend Web with Web APIs/sample-code/MyNewApp.sln"
+
+  build-nuget-samples:
+    name: Build NuGet Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build AppLogger
+      run: dotnet build "Package Management with NuGet/sample-code/AppLogger/AppLogger.sln"
+
+    - name: Build Account
+      run: dotnet build "Package Management with NuGet/sample-code/Account/Account.sln"
+
+  build-visualstudio-samples:
+    name: Build Visual Studio Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build RazorPagesCupcakes
+      run: dotnet build "Visual Studio/sample-code/RazorPagesCupcakes.sln"
+
+  build-container-samples:
+    name: Build Container Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build Container WebApp
+      run: dotnet build "Containers/sample-code/container-webapp/container-webapp.csproj"
+
+  build-ai-ml-samples:
+    name: Build AI/ML Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build GitHubIssuesWebApi
+      run: dotnet build "Artificial Intelligence and Machine Learning/sample-code/src/GitHubIssuesWebApi/GitHubIssuesWebApi.csproj"
+
+    - name: Build ChatGPT Plugin
+      run: dotnet build "Artificial Intelligence and Machine Learning/sample-code/src/chatgpt-plugin/chatgpt-plugin.csproj"
+
+    - name: Build MLModels
+      run: dotnet build "Artificial Intelligence and Machine Learning/sample-code/src/MLModels/MLModels.csproj"
+
+  build-iot-samples:
+    name: Build IoT Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build IoT Sensor
+      run: dotnet build "IoT/5-sensors-displays-i2c/code/Sensor/Sensor.csproj"
+
+    - name: Build IoT Adc
+      run: dotnet build "IoT/6-adc-spi/code/Adc/Adc.csproj"
+
+    - name: Build IoT Temperature
+      run: dotnet build "IoT/6-adc-spi/code/temperature/temperature.csproj"
+
+  build-blazor-hybrid-samples:
+    name: Build Blazor Hybrid Samples
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Build HybridTodoApp Components
+      run: dotnet build "Blazor Hybrid/sample-code/HybridTodoApp.Components/HybridTodoApp.Components.csproj"
+
+    - name: Build HybridTodoApp Website
+      run: dotnet build "Blazor Hybrid/sample-code/HybridTodoApp.Website/HybridTodoApp.Website.csproj"
+
+  build-maui-samples:
+    name: Build MAUI Samples (Windows)
+    runs-on: windows-latest
+    # Note: MAUI projects require platform-specific workloads and are built on Windows
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: '10.0.x'
+
+    - name: Install .NET MAUI workload
+      run: dotnet workload install maui
+
+    - name: Restore MauiApp2
+      run: dotnet restore ".NET MAUI/sample-code/MauiApp2.sln"
+
+    - name: Build MauiApp2 (Windows only)
+      run: dotnet build ".NET MAUI/sample-code/MauiApp2.sln" -f net10.0-windows10.0.19041.0
+
+    - name: Restore HybridTodoApp
+      run: dotnet restore "Blazor Hybrid/sample-code/HybridTodoApp.sln"
+
+    - name: Build HybridTodoApp (Windows only)
+      run: dotnet build "Blazor Hybrid/sample-code/HybridTodoApp/HybridTodoApp.csproj" -f net10.0-windows10.0.19041.0
diff --git a/...ligence and Machine Learning/sample-code/src/GitHubIssuesWebApi/GitHubIssuesWebApi.csproj b/...ligence and Machine Learning/sample-code/src/GitHubIssuesWebApi/GitHubIssuesWebApi.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <LangVersion>preview</LangVersion>
     <PlatformTarget>x64</PlatformTarget>
     <ImplicitUsings>enable</ImplicitUsings>

diff --git a/Artificial Intelligence and Machine Learning/sample-code/src/MLModels/MLModels.csproj b/Artificial Intelligence and Machine Learning/sample-code/src/MLModels/MLModels.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>

diff --git a/...al Intelligence and Machine Learning/sample-code/src/chatgpt-plugin/chatgpt-plugin.csproj b/...al Intelligence and Machine Learning/sample-code/src/chatgpt-plugin/chatgpt-plugin.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <RootNamespace>chatgpt_plugin</RootNamespace>

diff --git a/Backend Web with Web APIs/sample-code/MyNewApp/MyNewApp.csproj b/Backend Web with Web APIs/sample-code/MyNewApp/MyNewApp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

diff --git a/Backend Web with Web APIs/sample-code/MyNewApp/Program.cs b/Backend Web with Web APIs/sample-code/MyNewApp/Program.cs
@@ -26,7 +26,7 @@
 app.MapPost("/todos", (Todo task, ITaskService service) =>
 {
     service.AddTodo(task);
-    return TypedResults.Created($"/todos/{id}", task);
+    return TypedResults.Created($"/todos/{task.Id}", task);
 })
 .AddEndpointFilter(async (context, next) => {
     var taskArgument = context.GetArgument<Todo>(0);

diff --git a/Blazor Hybrid/sample-code/HybridTodoApp.Components/HybridTodoApp.Components.csproj b/Blazor Hybrid/sample-code/HybridTodoApp.Components/HybridTodoApp.Components.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
 	  <UseMauiEssentials>true</UseMauiEssentials>

diff --git a/Blazor Hybrid/sample-code/HybridTodoApp.Website/HybridTodoApp.Website.csproj b/Blazor Hybrid/sample-code/HybridTodoApp.Website/HybridTodoApp.Website.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
 	  <UseMauiEssentials>true</UseMauiEssentials>

diff --git a/Blazor Hybrid/sample-code/HybridTodoApp/HybridTodoApp.csproj b/Blazor Hybrid/sample-code/HybridTodoApp/HybridTodoApp.csproj
@@ -1,10 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0-android;net8.0-ios;net8.0-maccatalyst</TargetFrameworks>
-        <TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net8.0-windows10.0.19041.0</TargetFrameworks>
-        <!-- Uncomment to also build the tizen app. You will need to install tizen by following this: https://github.com/Samsung/Tizen.NET -->
-        <!-- <TargetFrameworks>$(TargetFrameworks);net8.0-tizen</TargetFrameworks> -->
+        <TargetFrameworks>net10.0-android;net10.0-ios;net10.0-maccatalyst</TargetFrameworks>
+        <TargetFrameworks Condition="$([MSBuild]::IsOSPlatform('windows'))">$(TargetFrameworks);net10.0-windows10.0.19041.0</TargetFrameworks>
 
          <!-- Note for MacCatalyst:
             The default runtime is maccatalyst-x64, except in Release config, in which case the default is maccatalyst-x64;maccatalyst-arm64.
@@ -35,7 +33,6 @@
         <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">24.0</SupportedOSPlatformVersion>
         <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</SupportedOSPlatformVersion>
         <TargetPlatformMinVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'windows'">10.0.17763.0</TargetPlatformMinVersion>
-        <SupportedOSPlatformVersion Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'tizen'">6.5</SupportedOSPlatformVersion>
     </PropertyGroup>
 
     <ItemGroup>
@@ -83,7 +80,7 @@
     <UseHardenedRuntime>true</UseHardenedRuntime>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(TargetFramework)'=='net8.0-ios'">
+  <PropertyGroup Condition="'$(TargetFramework)'=='net10.0-ios'">
     <CodesignKey>Apple Development: Created via API (M23D499R8F)</CodesignKey>
     <CodesignProvision>VS: WildCard Development</CodesignProvision>
   </PropertyGroup>

diff --git a/Containers/sample-code/container-webapp/container-webapp.csproj b/Containers/sample-code/container-webapp/container-webapp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
     <RootNamespace>container_webapp</RootNamespace>

diff --git a/Frontend Web with Blazor/sample-code/data-binding/BlazorApp/BlazorApp.csproj b/Frontend Web with Blazor/sample-code/data-binding/BlazorApp/BlazorApp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

diff --git a/Frontend Web with Blazor/sample-code/handling-events/BlazorApp/BlazorApp.csproj b/Frontend Web with Blazor/sample-code/handling-events/BlazorApp/BlazorApp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>

diff --git a/...tend Web with Blazor/sample-code/introducing-blazor-components/BlazorApp/BlazorApp.csproj b/...tend Web with Blazor/sample-code/introducing-blazor-components/BlazorApp/BlazorApp.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net8.0</TargetFramework>
+    <TargetFramework>net10.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>