Merge branch 'main' into dotnet10-p5

Author: jamesmontemagno

README.md

@@ -6,15 +6,15 @@ Welcome to the home of .NET [release notes](./release-notes/README.md) and [news
 
 [Releases](./releases.md) under active support or development:
 
-|  Version  | Release Date | Support | Latest Patch Version | End of Support |
-| :-- | :-- | :-- | :-- | :-- |
-| [.NET 10](release-notes/10.0/README.md) | November 11, 2025 | [LTS][policies] | [10.0.0-preview.2][10.0.0-preview.2] | May 8, 2028 |
-| [.NET 9](release-notes/9.0/README.md) | November 12, 2024 | [STS][policies] | [9.0.3][9.0.3] | May 12, 2026 |
-| [.NET 8](release-notes/8.0/README.md) | [November 14, 2023](https://devblogs.microsoft.com/dotnet/announcing-dotnet-8/) | [LTS][policies] | [8.0.14][8.0.14] | November 10, 2026 |
-
-[10.0.0-preview.2]: release-notes/10.0/preview/preview2/10.0.0-preview.2.md
-[9.0.3]: release-notes/9.0/9.0.3/9.0.3.md
-[8.0.14]: release-notes/8.0/8.0.14/8.0.14.md
+|  Version  | Release Date | Release type |Support phase | Latest Patch Version | End of Support |
+| :-- | :-- | :-- | :-- | :-- | :-- |
+| [.NET 10](release-notes/10.0/README.md) | November 11, 2025 | [LTS][policies] | Preview| [10.0.0-preview.4][10.0.0-preview.4] | |
+| [.NET 9](release-notes/9.0/README.md) | [November 12, 2024](https://devblogs.microsoft.com/dotnet/announcing-dotnet-9/) | [STS][policies] | Active | [9.0.5][9.0.5] | May 12, 2026 |
+| [.NET 8](release-notes/8.0/README.md) | [November 14, 2023](https://devblogs.microsoft.com/dotnet/announcing-dotnet-8/) | [LTS][policies] | Active | [8.0.16][8.0.16] | November 10, 2026 |
+
+[10.0.0-preview.4]: release-notes/10.0/preview/preview4/10.0.0-preview.4.md
+[9.0.5]: release-notes/9.0/9.0.5/9.0.5.md
+[8.0.16]: release-notes/8.0/8.0.16/8.0.16.md
 [policies]: release-policies.md
 
 * [Release notes](./release-notes/README.md)

daily-builds.md

@@ -1,5 +1,7 @@
 # .NET Daily Builds -- Servicing and future releases
 
+See the [.NET SDK daily builds table](https://github.com/dotnet/dotnet/blob/main/docs/builds-table.md) for the latest daily build.
+
 The .NET team builds many branches of the product daily. You can install these builds to try out functionality prior to release.
 
 Daily builds, for both future and servicing branches, are available as Docker container images from the [Microsoft Container Registry](https://github.com/dotnet/dotnet-docker/blob/nightly/README.md).

os-lifecycle-policy.md

@@ -11,7 +11,7 @@ The following documents describe supported operating systems:
 
 ## Preview .NET versions
 
-None.
+* [.NET 10 supported OS versions](release-notes/10.0/supported-os.md)
 
 ## Out-of-support .NET versions
 

release-notes/10.0/README.md

@@ -16,40 +16,79 @@ It is currently in development and not supported. .NET 10 is expected to be rele
 
 | Date | Release |
 | :-- | :-- |
+| 2025/05/10 | [10.0.0 Preview 4](preview/preview4/README.md) |
+| 2025/04/10 | [10.0.0 Preview 3](preview/preview3/README.md) |
 | 2025/03/18 | [10.0.0 Preview 2](preview/preview2/README.md) |
 | 2025/02/25 | [10.0.0 Preview 1](preview/preview1/README.md) |
 
 ### .NET Libraries
 
 - [What's new in .NET 10 libraries](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/overview#net-libraries)
+- [Preview 4](preview/preview4/libraries.md)
+- [Preview 3](preview/preview3/libraries.md)
 - [Preview 2](preview/preview2/libraries.md)
+- [Preview 1](preview/preview1/libraries.md)
 
 ### .NET Runtime
 
 - [What's new in the .NET 10 runtime](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/runtime)
+- [Preview 4](preview/preview4/runtime.md)
+- [Preview 3](preview/preview3/runtime.md)
 - [Preview 2](preview/preview2/runtime.md)
+- [Preview 1](preview/preview1/runtime.md)
 
 ### .NET SDK
 
 - [What's new in the SDK for .NET 10](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/sdk)
+- [Preview 4](preview/preview4/sdk.md)
+- [Preview 3](preview/preview3/sdk.md)
 - [Preview 2](preview/preview2/sdk.md)
+- [Preview 1](preview/preview1/sdk.md)
 
 ### C\#
 
 - [What's new in C# 14](https://learn.microsoft.com/dotnet/csharp/whats-new/csharp-14)
+- [Preview 4](preview/preview4/csharp.md)
+- [Preview 3](preview/preview3/csharp.md)
 - [Preview 2](preview/preview2/csharp.md)
+- [Preview 1](preview/preview1/csharp.md)
 
 ### ASP.NET Core
 
 - [What's new in ASP.NET Core 10.0](https://learn.microsoft.com/aspnet/core/release-notes/aspnetcore-10.0)
+- [Preview 4](preview/preview4/aspnetcore.md)
+- [Preview 3](preview/preview3/aspnetcore.md)
 - [Preview 2](preview/preview2/aspnetcore.md)
+- [Preview 1](preview/preview1/aspnetcore.md)
 
 ### .NET MAUI
 
 - [What's new in .NET MAUI for .NET 10](https://learn.microsoft.com/dotnet/maui/whats-new/dotnet-10)
+- [Preview 4](preview/preview4/dotnetmaui.md)
+- [Preview 3](preview/preview3/dotnetmaui.md)
 - [Preview 2](preview/preview2/dotnetmaui.md)
+- [Preview 1](preview/preview1/dotnetmaui.md)
 
 ### Entity Framework Core
 
 - [What's new in EF Core 10](https://learn.microsoft.com/ef/core/what-is-new/ef-core-10.0/whatsnew)
+- [Preview 4](preview/preview4/efcore.md)
+- [Preview 3](preview/preview3/efcore.md)
 - [Preview 2](preview/preview2/efcore.md)
+- [Preview 1](preview/preview1/efcore.md)
+
+### Windows Forms
+
+- [What's new in Windows Forms for .NET 10](https://learn.microsoft.com/dotnet/desktop/winforms/whats-new/net100)
+- [Preview 4](preview/preview4/winforms.md)
+- [Preview 3](preview/preview3/winforms.md)
+- [Preview 2](preview/preview2/winforms.md)
+- [Preview 1](preview/preview1/winforms.md)
+
+### Windows Presentation Foundation (WPF)
+
+- [What's new in WPF for .NET 10](https://learn.microsoft.com/dotnet/desktop/wpf/whats-new/net100)
+- [Preview 4](preview/preview4/wpf.md)
+- [Preview 3](preview/preview3/wpf.md)
+- [Preview 2](preview/preview2/wpf.md)
+- [Preview 1](preview/preview1/wpf.md)

release-notes/10.0/install-linux.md

@@ -30,14 +30,14 @@ You can install .NET with a binary archive. This option is required if you want
 The following workflow demonstrates downloading, unpacking, configuring, and running the .NET SDK from the command line. You may choose to do some of these tasks via the browser and functionality provided by your operating system.
 
 ```bash
-~# curl -Lo dotnet.tar.gz https://download.visualstudio.microsoft.com/download/pr/ed3f7a1c-0aeb-4bff-8f93-db1b48c13dbc/dbd62e4564414b7de38e32ca47a0e9e3/dotnet-sdk-10.0.100-preview.1.25120.13-linux-x64.tar.gz
+~# curl -Lo dotnet.tar.gz https://builds.dotnet.microsoft.com/dotnet/Sdk/10.0.100-preview.4.25258.110/dotnet-sdk-10.0.100-preview.4.25258.110-linux-x64.tar.gz
 ~# mkdir dotnet
 ~# tar -C dotnet -xf dotnet.tar.gz
 ~# rm dotnet.tar.gz
 ~# export DOTNET_ROOT=~/dotnet
 ~# export PATH=$PATH:~/dotnet
 ~# dotnet --version
-10.0.100-preview.1.25120.13
+10.0.100-preview.4.25258.110
 ```
 
 The `DOTNET_ROOT` environment variable is required to launch an application with their executables (like `myapp.exe`). The executables look for this environment variable to find the runtime if it isn't installed in its regular location. The `PATH` environment variable must be updated if you want to use `dotnet` without absolute paths to its location. Setting both of these environment variables is optional.

release-notes/10.0/install-macos.md

@@ -34,14 +34,14 @@ You can install .NET with a binary archive. This option is required if you want
 The following workflow demonstrates downloading, unpacking, configuring, and running the .NET SDK from the command line. You may choose to do some of these tasks via the browser and functionality provided by your operating system.
 
 ```bash
-~# curl -Lo dotnet.tar.gz https://download.visualstudio.microsoft.com/download/pr/8462c34b-dc1e-4793-aab0-449bd1419d1c/bac3f5d229638e0d8600b9d4b304c26e/dotnet-sdk-10.0.100-preview.1.25120.13-osx-x64.tar.gz
+~# curl -Lo dotnet.tar.gz https://builds.dotnet.microsoft.com/dotnet/Sdk/10.0.100-preview.4.25258.110/dotnet-sdk-10.0.100-preview.4.25258.110-win-x64.exe
 ~# mkdir dotnet
 ~# tar -C dotnet -xf dotnet.tar.gz
 ~# rm dotnet.tar.gz
 ~# export DOTNET_ROOT=~/dotnet
 ~# export PATH=$PATH:~/dotnet
 ~# dotnet --version
-10.0.100-preview.1.25120.13
+10.0.100-preview.4.25258.110
 ```
 
 The `DOTNET_ROOT` environment variable is required to launch an application with their executables (like `myapp.exe`). The executables look for this environment variable to find the runtime if it isn't installed in its regular location. The `PATH` environment variable must be updated if you want to use `dotnet` without absolute paths to its location. Setting both of these environment variables is optional.

release-notes/10.0/install-windows.md

@@ -50,13 +50,13 @@ You can install .NET with a binary archive. This option is required if you want
 The following workflow demonstrates downloading, unpacking, configuring, and running the .NET SDK from the command line. You may choose to do some of these tasks via the browser and functionality provided by your operating system.
 
 ```console
-C:\>curl -Lo dotnet.zip https://download.visualstudio.microsoft.com/download/pr/f8fc17aa-29b7-4a34-b164-3c91e2d5a728/9dfcf0628bcd2b6f53d573a100b4e3ca/dotnet-sdk-10.0.100-preview.1.25120.13-win-x64.exe
+C:\>curl -Lo dotnet.zip https://builds.dotnet.microsoft.com/dotnet/Sdk/10.0.100-preview.4.25258.110/dotnet-sdk-10.0.100-preview.4.25258.110-win-x64.exe
 C:\>tar -C dotnet -xf dotnet.zip
 C:\>del dotnet.zip
 C:\>set DOTNET_ROOT=C:\dotnet
 C:\>set PATH=%PATH%;C:\dotnet
 C:\>dotnet --version
-10.0.100-preview.1.25120.13
+10.0.100-preview.4.25258.110
 ```
 
 The `DOTNET_ROOT` environment variable is required to launch an application with their executables (like `myapp.exe`). The executables look for this environment variable to find the runtime if it isn't installed in its regular location. The `PATH` environment variable must be updated if you want to use `dotnet` without absolute paths to its location. Setting both of these environment variables is optional.

release-notes/10.0/known-issues.md

@@ -7,3 +7,22 @@ You may encounter some known issues, which may include workarounds, mitigations,
 Starting in .NET 10 Preview 2, installing the ASP.NET Core Runtime Hosting Bundle for Windows on ARM64 when a earlier version of the hosting bundle was previously installed breaks IIS hosting. This causes problems for both IIS and IIS express on ARM64 machines after attempting to update the hosting bundle. Fortunately, **you can work around this issue by uninstalling all hosting bundles and reinstalling the .NET 10 Preview 2 hosting bundle.**
 
 See [the GitHub issue](https://github.com/dotnet/aspnetcore/issues/60764) for more details.
+
+## MAUI applications may fail to build in Visual Studio
+
+MAUI applications built in Visual Studio or with `MSBuild.exe` may fail with an error like `C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.CSharp.CurrentVersion.targets(238,5): error : The application to execute does not exist: 'C:\Program Files\dotnet\sdk\10.0.100-preview.4.25258.110\Roslyn\binfx\csc.dll'`.
+
+### Available Workaround
+
+Add the following to a `Directory.Build.props` file that is imported in all MAUI projects, or directly in each affected MAUI project:
+
+```xml
+<PropertyGroup Label="">
+  <!-- Work around .NET 10-preview4 MAUI issue.
+       Remove when building with .NET SDK 10.0.100-preview.5 or later that
+       includes https://github.com/dotnet/roslyn/pull/78402 -->
+  <RoslynCompilerType>FrameworkPackage</RoslynCompilerType>
+</PropertyGroup>
+```
+
+The behavior will be **fixed in the .NET 10 preview 5** release. The workaround should be removed after that release.