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| 8.0.1xx | 17.8 | Nov '23 | Nov '25<sup>1</sup> |
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| 8.0.2xx | 17.9<sup>3</sup>| Feb '24 | May '24<sup>3</sup>|
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| 8.0.2xx | 17.9 | Feb '24 | May '24|
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| 8.0.3xx | 17.10 | May '24 | TBD |
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| 8.0.4xx | 17.11 | Aug '24 | Nov '25<sup>2</sup> |
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| 9.0.1xx | 17.12 | Nov '24 | May '26<sup>1</sup> |
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| 9.0.1xx | 17.12 | Nov '24 | May '26 |
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| 9.0.2xx | 17.13 | Feb '25 | May '26 |
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| 9.0.3xx | 17.14 | May '25 | May '26 |
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> [!NOTE]
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> Targeting `net6.0` is officially supported in Visual Studio 17.0+ only.
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> Targeting `net7.0` is officially supported in Visual Studio 17.4+ only.
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> Targeting `net8.0` is officially supported in Visual Studio 17.8+ only.
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>
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> <sup>1</sup> .1xx .NET SDK feature bands are supported throughout the lifecycle of major .NET versions. During the extended support period, support is limited to security fixes and minimal high-priority non-security fixes for Linux only. To learn more about the reasoning for this extended support, see [Source-build support](https://github.com/dotnet/source-build#support).
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> <sup>2</sup> .4xx .NET SDK feature bands are supported for the life of the matching runtime as stand-alone installs.
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> <sup>3</sup> 8.0.200 requires a newer Visual Studio version. For more information, see the [support rules](#targeting-and-support-rules).
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> [Visual Studio 2019 Lifecycle](/lifecycle/products/visual-studio-2019)
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> [Visual Studio 2022 Lifecycle](/lifecycle/products/visual-studio-2022)
@@ -86,23 +82,20 @@ A the following policy dictates which versions of MSBuild and Visual Studio a gi
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| SDK | Visual Studio version<br/>the SDK ships with | Minimum Visual Studio version | Max TargetFramework in<br/>minimum Visual Studio version | Max TargetFramework in `dotnet`|
> The table depicts how these versioning rules are applied, starting with .NET SDK 7.0.100 and .NET SDK 6.0.300. It also depicts how the policy would have applied to previously shipped versions of the .NET SDK, had it been in place then. However, the requirements for previous versions of the SDK don't change—that is, the minimum required version of Visual Studio for .NET SDK 6.0.100 or 6.0.200 remains 16.10.
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> <sup>1</sup> A breaking change in 7.0.300 for Blazor and Razor development requires Visual Studio version 17.6 or newer. For more information, see [dotnet/razor issue 8718](https://github.com/dotnet/razor/issues/8718).
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> Targeting `net8.0` is officially supported in Visual Studio 17.8+ only.
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> Targeting `net9.0` is officially supported in Visual Studio 17.12+ only.
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To ensure consistent tooling, you should use `dotnet build` rather than `msbuild` to build your application when possible.
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@@ -112,16 +105,10 @@ Major versions of the .NET SDK are typically released within a few days of a Vis
Copy file name to clipboardExpand all lines: docs/core/whats-new/dotnet-9/overview.md
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@@ -70,7 +70,7 @@ For more information, see [What's new in the SDK for .NET 9](sdk.md).
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- Builds on top of `TensorPrimitives` for efficient math operations.
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- Provides efficient interop with AI libraries (ML.NET, TorchSharp, ONNX Runtime) using zero copies where possible.
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- Enables easy and efficient data manipulation with indexing and slicing operations.
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- Is [experimental](../../../fundamentals/apicompat/preview-apis.md#experimentalattribute) in .NET 9.
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- Is [experimental](../../../fundamentals/runtime-libraries/preview-apis.md#experimentalattribute) in .NET 9.
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### ML.NET
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-<xref:Microsoft.Maui.Controls.Entry> now supports additional keyboard modes.
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- Control handlers automatically disconnect from their controls when possible.
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-<xref:Microsoft.Maui.Controls.Application.MainPage> is deprecated in favor of setting the primary page of the app by overriding <xref:Microsoft.Maui.Controls.Application.CreateWindow(Microsoft.Maui.IActivationState)?displayProperty=nameWithType> class.
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For more information about that these new features and more, see [What's new in .NET MAUI for .NET 9](/dotnet/maui/whats-new/dotnet-9).
Copy file name to clipboardExpand all lines: docs/csharp/fundamentals/functional/pattern-matching.md
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---
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title: Pattern matching overview
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description: "Learn about pattern matching expressions in C#"
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ms.date: 03/13/2024
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ms.date: 01/27/2025
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---
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# Pattern matching overview
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The preceding code demonstrates the [*positional pattern*](../../language-reference/operators/patterns.md#positional-pattern) where the properties are deconstructed for the expression.
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You can also match a property against `{ }`, which matches any non-null value. Consider the following declaration, which stores measurements with an optional annotation:
You can check elements in a list or an array using a *list pattern*. A [list pattern](../../language-reference/operators/patterns.md#list-patterns) provides a means to apply a pattern to any element of a sequence. In addition, you can apply the *discard pattern* (`_`) to match any element, or apply a *slice pattern* to match zero or more elements.
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