dotnet · rbhanda · Feb 25, 2025 · Jan 31, 2025 · Jan 31, 2025 · Jan 31, 2025
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+
+# Get Started
+
+To get started, [install the .NET 10 SDK](https://dotnet.microsoft.com/download/dotnet/10.0).
+
+If you're on Windows using Visual Studio, we recommend installing the latest [Visual Studio 2022 preview](https://visualstudio.microsoft.com/vs/preview/), or get started with Visual Studio Code and the [C# Dev Kit](https://marketplace.visualstudio.com/items?itemName=ms-dotnettools.csdevkit) extension.
+
+## .NET Workloads
+
+After installing .NET 10 previews, you can install workloads by following these instructions. For more information read through the [documentation](https://learn.microsoft.com/dotnet/core/tools/dotnet-workload).
+
+### .NET MAUI
+
+Install the .NET MAUI workload:
+
+```console
+> dotnet workload install maui
+...
+Successfully installed workload(s) maui.
+```
+
+Verify installation:
+
+```console
+> dotnet workload list
+
+Installed Workload Id      Manifest Version                            Installation Source
+--------------------------------------------------------------------------------------------
+maui                    10.0.0-preview.1.9973/10.0.100-preview.1     SDK 10.0.100-preview.1
+```
+
+Installing the `maui` workload includes `android`, `ios`, and `maccatalyst` workloads which may be installed independently. Run `dotnet workload search` for a full list of available workload configurations.
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+# .NET 10 Preview 1 Binaries
+
+.NET 10 Preview 1 installers and binaries can be downloaded for the following product versions:
+
+- `.NET 10.0.0 Preview 1`
+- `.NET SDK 10.0.100-preview.1.XXXXX.X`
+
+See [README.md](README.md) for .NET 10 release notes and discussions.
+
+The latest .NET releases are always listed at [.NET Releases](../../README.md).
+
+## Downloads
+
+// To add download links
+
+1. Includes the .NET Runtime and ASP.NET Core Runtime
+2. For hosting stand-alone apps on Windows Servers. Includes the ASP.NET Core Module for IIS and can be installed separately on servers without installing .NET Runtime.
+
+The .NET SDK includes a matching updated .NET Runtime. Downloading the Runtime or ASP.NET Core packages is not needed when installing the SDK.
+
+You can check your .NET SDK version by running the following command. The example version shown is for this release.
+
+```console
+$ dotnet --version
+10.0.100-preview.1.XXXXX.X
+```
+
+## .NET Multi-Platform App UI (MAUI) Workload Downloads
+
+ After installing the .NET SDK, you can install .NET MAUI using the `dotnet workload install` command:
+
+ ```console
+ dotnet workload install maui
+ ```
+
+ The following workloads are also available to install individually:
+
+ ```console
+ dotnet workload install android
+ dotnet workload install ios
+ dotnet workload install maccatalyst
+ dotnet workload install macos
+ dotnet workload install tvos
+ ```
+
+## Docker Images
+
+The [.NET Docker images](https://hub.docker.com/_/microsoft-dotnet) have been updated for this release. The [.NET Docker samples](https://github.com/dotnet/dotnet-docker/blob/main/samples/README.md) show various ways to use .NET and Docker together.
+
+The following repos have been updated.
+
+- [dotnet/sdk](https://github.com/dotnet/dotnet-docker/blob/main/README.sdk.md): .NET SDK
+- [dotnet/aspnet](https://github.com/dotnet/dotnet-docker/blob/main/README.aspnet.md): ASP.NET Core Runtime
+- [dotnet/runtime](https://github.com/dotnet/dotnet-docker/blob/main/README.runtime.md): .NET Runtime
+- [dotnet/runtime-deps](https://github.com/dotnet/dotnet-docker/blob/main/README.runtime.md): .NET Runtime Dependencies
+- [dotnet/monitor](https://github.com/dotnet/dotnet-docker/blob/main/README.monitor.md): .NET Monitor
+- [dotnet/monitor/base](https://github.com/dotnet/dotnet-docker/blob/main/README.monitor-base.md): .NET Monitor Base
+- [dotnet/samples](https://github.com/dotnet/dotnet-docker/blob/main/README.samples.md): .NET Samples
+
+## Visual Studio Compatibility
+
+.NET 10 is compatible with  [Visual Studio 17.XX latest preview](https://visualstudio.microsoft.com) Users will have to [download](https://dotnet.microsoft.com/download/dotnet/9.0) and install the .NET 10 runtime/sdk standalone. Visual Studio for Mac is currently not supported for .NET 10.0 Preview releases.
+
+## Feedback
+
+Your feedback is important and appreciated. We've created a discussion at <https://github.com/dotnet/core/discussions/categories/news> for your questions and comments.
+
+## Packages updated in this release
+
+// Update packages here
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+# .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 released on February X, 2025. Find more information on new features released in .NET 10 Preview 1 by browsing through the release notes below:
+
+- [Libraries](./libraries.md)
+- [Runtime](./runtime.md)
+- [SDK](./sdk.md)
+
+## Feature Release Notes
+
+- [.NET Aspire](./dotnetaspire.md)
+- [.NET MAUI](./dotnetmaui.md)
+- [ASP.NET Core](./aspnetcore.md)
+- [EF Core & Data](./efcore.md)
+- [Windows Forms](./winforms.md)
+- [WPF](./wpf.md)
+
+## Get Started
+
+Instructions on getting started with .NET 10 can be found in the [getting started guide](../../get-started.md). Installers and binaries for .NET 10 Preview 1 can be found [here on GitHub](./10.0.0-preview.1.md).
+
+## Stay up-to-date
+
+You can find a detailed overview of all new features in .NET 10:
+
+- [What's new in .NET 10](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/overview)
+- [What's new in C# 14](https://learn.microsoft.com/dotnet/csharp/whats-new/csharp-14)
+- [What's new in F# 10](https://learn.microsoft.com/dotnet/fsharp/whats-new/fsharp-10)
+- [What's new in .NET Aspire](https://learn.microsoft.com/dotnet/aspire/whats-new/dotnet-aspire-10)
+- [What's new in .NET MAUI](https://learn.microsoft.com/dotnet/maui/whats-new/dotnet-10)
+- [What's new in ASP.NET Core](https://learn.microsoft.com/aspnet/core/release-notes/aspnetcore-10.0)
+- [What's new in Entity Framework Core](https://learn.microsoft.com/ef/core/what-is-new/ef-core-10.0/whatsnew)
+- [What's new in Windows Forms](https://learn.microsoft.com/dotnet/desktop/winforms/whats-new/net100)
+- [What's new in WPF](https://learn.microsoft.com/dotnet/desktop/wpf/whats-new/net100)
+
+The latest .NET 10 release is always available at [dotnet.microsoft.com](https://dotnet.microsoft.com/download/dotnet/10.0) and [.NET 10 Releases](../../README.md).
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+# ASP.NET Core in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new ASP.NET Core features & enhancements:
+
+- [Feature](#feature)
+
+ASP.NET Core updates in .NET 10:
+
+- [What's new in ASP.NET Core in .NET 10](https://learn.microsoft.com/aspnet/core/release-notes/aspnetcore-10.0) documentation
+- [Breaking changes](https://docs.microsoft.com/dotnet/core/compatibility/10.0#aspnet-core)
+- [Roadmap](https://aka.ms/aspnet/roadmap)
+
+
+## Feature
+
+This is something about the feature
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+# C# 14 updates in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes the following C# features & enhancements:
+
+- [Feature](#feature)
+
+C# 14 updates:
+
+- [What's new in C# 14](https://learn.microsoft.com/dotnet/csharp/whats-new/csharp-14) documentation
+- [Breaking changes in C# 14](https://learn.microsoft.com/dotnet/csharp/whats-new/breaking-changes/compiler%20breaking%20changes%20-%20dotnet%2010)
+
+## Feature
+
+This is something about the feature
diff --git a/release-notes/10.0/preview/preview1/dotnetaspire.md b/release-notes/10.0/preview/preview1/dotnetaspire.md
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+# .NET Aspire 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new .NET Aspire features & enhancements:
+
+- [Feature](#feature)
+
+.NET Aspire 10 updates:
+
+- [What's new in .NET Aspire in .NET 10](https://learn.microsoft.com/dotnet/aspire/whats-new/dotnet-aspire-10) documentation
+
+
+## Feature
+
+This is something about the feature
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+# .NET MAUI in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new .NET MAUI features & enhancements:
+
+- [Feature](#feature)
+- [GitHub Release Notes](https://aka.ms/maui9p1)
+
+.NET MAUI updates in .NET 10:
+
+- [What's new in .NET MAUI in .NET 10](https://learn.microsoft.com/dotnet/maui/whats-new/dotnet-10) documentation.
+
+
+## Feature
+
+This is something about the feature
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+# Entity Framework Core 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new Entity Framework Core features & enhancements:
+
+- [Support for the .NET 10 LeftJoin operator](#support-for-the-net-10-leftjoin-operator)
+- [ExecuteUpdateAsync now accepts a regular, non-expression lambda](#executeupdateasync-now-accepts-a-regular-non-expression-lambda)
+- [Several small improvements](#small-improvements)
+
+Entity Framework Core 10 updates:
+
+- [What's new in Entity Framework Core 10](https://learn.microsoft.com/ef/core/what-is-new/ef-core-10.0/whatsnew) documentation
+- [Breaking change in Entity Framework Core 10](https://learn.microsoft.com/ef/core/what-is-new/ef-core-10.0/breaking-changes)
+
+## Support for the .NET 10 LeftJoin operator
+
+`LEFT JOIN` is a common and useful operation when working with EF Core. In previous versions, implementing `LEFT JOIN` in LINQ was quite complicated, requiring `SelectMany`, `GroupJoin` and `DefaultIfEmpty` operations in a particular configuration:
+
+```C#
+var query = students
+    .GroupJoin(
+        departments,
+        student => student.DepartmentID,
+        department => department.ID,
+        (student, departmentList) => new { student, subgroup = departmentList })
+    .SelectMany(
+        joinedSet => joinedSet.subgroup.DefaultIfEmpty(),
+        (student, department) => new
+        {
+            student.student.FirstName,
+            student.student.LastName,
+            Department = department?.Name ?? "[NONE]"
+        });
+```
+
+.NET 10 adds first-class LINQ support for `LeftJoin` method to make those queries much simpler to write. EF Core recognizes the new method, so it can be used in EF LINQ queries instead of the old construct:
+
+```C#
+var query = students
+    .LeftJoin(
+        departments,
+        student => student.DepartmentID,
+        department => department.ID,
+        (student, departmentList) => new 
+        { 
+            student.student.FirstName,
+            student.student.LastName,
+            Department = department?.Name ?? "[NONE]"
+        });
+```
+
+See [#12793](https://github.com/dotnet/efcore/issues/12793) for more details.
+
+## ExecuteUpdateAsync now accepts a regular, non-expression lambda
+
+Creating expresion trees can be verbose, and now you can use regular, non-expression lambdas when calling `ExecuteUpdateAsync`:
+
+```c#
+await context.Blogs.ExecuteUpdateAsync(s =>
+{
+    s.SetProperty(b => b.Views, 8);
+    if (nameChanged)
+    {
+        s.SetProperty(b => b.Name, "foo");
+    }
+});
+```
+
+Thanks to [@aradalvand](https://github.com/aradalvand) for proposing and pushing for this change (in [#32018](https://github.com/dotnet/efcore/issues/32018)).
+
+## Small improvements
+
+- Translation for DateOnly.ToDateTime(timeOnly) ([#35194](https://github.com/dotnet/efcore/pull/35194), contributed by [@mseada94](https://github.com/mseada94)).
+- Optimization for multiple consecutive `LIMIT`s ([#35384](https://github.com/dotnet/efcore/pull/35384), contributed by [@ranma42](https://github.com/ranma42)).
+- Optimization for use of `Count` operation on `ICollection<T>` ([#35381](https://github.com/dotnet/efcore/pull/35381), contributed by [@ChrisJollyAU](https://github.com/ChrisJollyAU)).
+- Optimization for `MIN`/`MAX` over `DISTINCT` ([#34699](https://github.com/dotnet/efcore/pull/34699), contributed by [@ranma42](https://github.com/ranma42)).
+- Make SQL Server scaffolding compatible with Azure Data Explorer ([#34832](https://github.com/dotnet/efcore/pull/34832), contributed by [@barnuri](https://github.com/barnuri)).
+- Translation for date/time functions using `DatePart.Microsecond` and `DatePart.Nanosecond` arguments ([#34861](https://github.com/dotnet/efcore/pull/34861)).
+- Simplifying parameter names (e.g. from `@__city_0` to `city`) ([#35200](https://github.com/dotnet/efcore/pull/35200)).
+
+## Everything else in Preview 1
+
+Preview 1 contains:
+
+- [18 enhancements](https://github.com/dotnet/efcore/issues?q=is%3Aissue%20is%3Aclosed%20label%3Apreview-1%20(milestone%3A9.0.1%20OR%20milestone%3A9.0.2%20OR%20milestone%3A9.0.3%20OR%20milestone%3A10.0.0)%20label%3Atype-enhancement)
+- [14 regression bug fixes](https://github.com/dotnet/efcore/issues?q=is%3Aissue%20is%3Aclosed%20label%3Apreview-1%20label%3Atype-bug%20(milestone%3A9.0.1%20OR%20milestone%3A9.0.2%20OR%20milestone%3A9.0.3%20OR%20milestone%3A10.0.0)%20label%3Aregression)
+- [28 non-regression bug fixes](https://github.com/dotnet/efcore/issues?q=is%3Aissue%20is%3Aclosed%20label%3Apreview-1%20label%3Atype-bug%20(milestone%3A9.0.1%20OR%20milestone%3A9.0.2%20OR%20milestone%3A9.0.3%20OR%20milestone%3A10.0.0)%20-label%3Aregression%20)
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+# F# 10 updates in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes the following F# features & enhancements:
+
+- [Feature](#feature)
+
+F# 10 updates:
+
+- [What's new in F# 10](https://learn.microsoft.com/dotnet/fsharp/whats-new/fsharp-10) documentation
+
+## Feature
+
+This is something about the feature
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+# .NET Libraries in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new .NET Libraries features & enhancements:
+
+- [Feature](#feature)
+
+.NET Libraries updates in .NET 10:
+
+- [What's new in .NET 10](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/overview) documentation
+
+
+## Feature
+
+This is something about the feature
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+# .NET Runtime in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new .NET Runtime features & enhancements:
+
+- [Feature](#feature)
+
+.NET Runtime updates in .NET 10:
+
+- [What's new in .NET 10](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/overview) documentation
+
+
+## Feature
+
+This is something about the feature
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+# .NET SDK in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new .NET SDK features & enhancements:
+
+- [Feature](#feature)
+
+.NET SDK updates in .NET 10:
+
+- [What's new in .NET 10](https://learn.microsoft.com/dotnet/core/whats-new/dotnet-10/overview) documentation
+
+
+## Feature
+
+This is something about the feature
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+# Visual Basic updates in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes the following Visual Basic features & enhancements:
+
+- [`unmanaged` constraint support](#unmanaged-constraint-support)
+- [Honor overload resolution priority](#honor-overload-resolution-priority)
+
+Visual Basic updates:
+
+- [What's new in Visual Basic](https://learn.microsoft.com/dotnet/visual-basic/whats-new/) documentation
+- [Breaking changes](https://learn.microsoft.com/dotnet/visual-basic/whats-new/breaking-changes)
+
+## `unmanaged` constraint support
+
+This is something about the feature/change and a link to the documetnation
+
+## Honor overload resolution priority
+
+This is something about the feature/change and a link to the documetnation
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+# Windows Forms in .NET 10 Preview 1 - Release Notes
+
+.NET 10 Preview 1 includes new Windows Forms features & enhancements:
+
+- [Feature](#feature)
+
+Windows Forms updates in .NET 10:
+
+- [What's new in Windows Forms in .NET 10](https://learn.microsoft.com/dotnet/desktop/winforms/whats-new/net100) documentation
+
+
+## Feature
+
+This is something about the feature