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Merged
merged 5 commits into from
Oct 24, 2025
Merged

Merge main into live #49441

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bf5c554
Consolidate warnings and errors for unsafe code. (#49388)
BillWagner Oct 23, 2025
9af720d
Remove the DIM feature spec (#49424)
BillWagner Oct 23, 2025
e1fb236
Fix target framework condition for AsyncEnumerable reference (#49434)
gewarren Oct 23, 2025
6ba8c65
change what's new author to bill (#49429)
gewarren Oct 23, 2025
a7d611a
Adding 10.0.100 GA and RCs (#49440)
marcpopMSFT Oct 24, 2025
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108 changes: 108 additions & 0 deletions .openpublishing.redirection.csharp.json
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Expand Up @@ -343,6 +343,10 @@
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs0188.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/feature-version-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs0233.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs0234.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/assembly-references"
Expand Down Expand Up @@ -431,10 +435,26 @@
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1502.md",
"redirect_url": "/dotnet/csharp/misc/cs1503"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1656.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1683.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/assembly-references"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1708.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1716.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1919.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1691.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/preprocessor-errors"
Expand Down Expand Up @@ -475,6 +495,10 @@
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs1988.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs4004.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs3007.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/array-declaration-errors"
Expand Down Expand Up @@ -543,6 +567,10 @@
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs8795.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/partial-types"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs8812.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/language-reference/compiler-messages/cs8817.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/partial-types"
Expand Down Expand Up @@ -1597,6 +1625,14 @@
"source_path_from_root": "/docs/csharp/misc/cs0192.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0193.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0196.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0199.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
Expand All @@ -1605,6 +1641,34 @@
"source_path_from_root": "/docs/csharp/misc/cs0206.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0208.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0209.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0210.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0211.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0212.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0213.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0214.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0215.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/overloaded-operator-errors"
Expand All @@ -1613,6 +1677,30 @@
"source_path_from_root": "/docs/csharp/misc/cs0216.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/overloaded-operator-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0227.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0242.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0244.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0254.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0459.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0821.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs0217.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/overloaded-operator-errors"
Expand Down Expand Up @@ -2153,6 +2241,14 @@
"source_path_from_root": "/docs/csharp/misc/cs1637.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/iterator-yield"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1641.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1642.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1649.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
Expand All @@ -2165,6 +2261,18 @@
"source_path_from_root": "/docs/csharp/misc/cs1655.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1663.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1665.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1666.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/unsafe-code-errors"
},
{
"source_path_from_root": "/docs/csharp/misc/cs1657.md",
"redirect_url": "/dotnet/csharp/language-reference/compiler-messages/ref-modifiers-errors"
Expand Down
7 changes: 3 additions & 4 deletions docfx.json
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Expand Up @@ -79,6 +79,7 @@
"csharp-8.0/async-streams.md",
"csharp-8.0/ranges.md",
"csharp-8.0/using.md",
"csharp-8.0/default-interface-methods.md",
"csharp-9.0/nullable-reference-types-specification.md",
"csharp-9.0/nullable-constructor-analysis.md",
"csharp-9.0/nullable-parameter-default-value-analysis.md",
Expand Down Expand Up @@ -368,7 +369,7 @@
"docs/core/tools/**/**.md": "meaghanlewis",
"docs/core/tutorials/**/**.md": "meaghanlewis",
"docs/core/versions/**/**.md": "billwagner",
"docs/core/whats-new/**/**.md": "gewarren",
"docs/core/whats-new/**/**.md": "billwagner",
"docs/csharp/**/*.*": "billwagner",
"docs/framework/**/**.md": "gewarren",
"docs/framework/additional-apis/pos-for-net/**/**.md": "TerryWarwick",
Expand Down Expand Up @@ -461,7 +462,7 @@
"docs/core/tools/**/**.md": "mosagie",
"docs/core/tutorials/**/**.md": "mosagie",
"docs/core/versions/**/**.md": "wiwagn",
"docs/core/whats-new/**/**.md": "gewarren",
"docs/core/whats-new/**/**.md": "wiwagn",
"docs/csharp/**/*.*": "wiwagn",
"docs/framework/**/**.md": "dotnetcontent",
"docs/framework/app-domains/**/**.md": "gewarren",
Expand Down Expand Up @@ -639,7 +640,6 @@
"_csharpstandard/standard/documentation-comments.md": "Documentation comments",
"_csharpstandard/standard/Bibliography.md": "Bibliography",
"_csharplang/proposals/csharp-8.0/patterns.md": "Recursive pattern matching",
"_csharplang/proposals/csharp-8.0/default-interface-methods.md": "Default interface methods",
"_csharplang/proposals/csharp-9.0/covariant-returns.md": "Covariant return types",
"_csharplang/proposals/csharp-9.0/extending-partial-methods.md": "Extending partial methods",
"_csharplang/proposals/csharp-9.0/extension-getenumerator.md": "Extension GetEnumerator support in foreach",
Expand Down Expand Up @@ -767,7 +767,6 @@
"_csharpstandard/standard/documentation-comments.md": "This appendix describes XML comments that are used to document your program.",
"_csharpstandard/standard/Bibliography.md": "This appendix lists external standards referenced in this specification.",
"_csharplang/proposals/csharp-8.0/patterns.md": "This feature specification describes recursive pattern matching, where patterns can nest inside other patterns.",
"_csharplang/proposals/csharp-8.0/default-interface-methods.md": "This feature specification describe the syntax updates necessary to support default interface methods. This includes declaring bodies in interface declarations, and supporting modifiers on declarations.",
"_csharplang/proposals/csharp-9.0/covariant-returns.md": "This feature specification describes covariant return types, where overriding member declarations can return a type derived from the overridden member declaration.",
"_csharplang/proposals/csharp-9.0/extending-partial-methods.md": "This feature specification describes extensions to partial methods. These extensions enable source generators to create or call partial methods.",
"_csharplang/proposals/csharp-9.0/extension-getenumerator.md": "This feature specification describes the necessary pattern for an extension method to provide the GetEnumerator support in a foreach loop.",
Expand Down
2 changes: 1 addition & 1 deletion docs/core/compatibility/sdk/10.0/nu1510-pruned-references.md
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Expand Up @@ -46,7 +46,7 @@ If your project targets only frameworks where the package is pruned, remove the
<PackageReference Include="System.Text.Json" Version="8.0.5" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))" />

<!-- reference 10.0 System.Linq.AsyncEnumerable when targeting things older than .NET 10 -->
<PackageReference Include="System.Linq.AsyncEnumerable" Version="10.0.0-preview.2.25163.2" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net.10'))" />
<PackageReference Include="System.Linq.AsyncEnumerable" Version="10.0.0-preview.2.25163.2" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net10.0'))" />

<!-- Reference System.Memory on frameworks not compatible with .NET Core 2.1 nor .NETStandard 2.1 -->
<PackageReference Include="System.Memory" Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'netcoreapp2.1')) and !$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'netstandard2.1'))" />
Expand Down
10 changes: 6 additions & 4 deletions docs/core/porting/versioning-sdk-msbuild-vs.md
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Expand Up @@ -4,7 +4,7 @@ description: Learn about the versioning relationship between the .NET SDK and MS
author: StephenBonikowsky
ms.author: stebon
ms.custom: updateeachrelease
ms.date: 10/08/2025
ms.date: 10/23/2025
---
# .NET SDK, MSBuild, and Visual Studio versioning

Expand Down Expand Up @@ -62,15 +62,16 @@ The support timeframe for the SDK typically matches that of the Visual Studio ve
| 9.0.1xx | 17.12 | Nov '24 | May '26 |
| 9.0.2xx | 17.13 | Feb '25 | May '25 |
| 9.0.3xx | 17.14 | May '25 | May '26 |
| 10.0.1xx | 18.0 | Nov '25 | Nov '28 |

> [!NOTE]
> <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).
>
> <sup>2</sup> .4xx .NET SDK feature bands are supported for the life of the matching runtime as stand-alone installs.
>
> [Visual Studio 2019 Lifecycle](/lifecycle/products/visual-studio-2019)
> [Visual Studio 2019 Lifecycle](https://learn.microsoft.com/lifecycle/products/visual-studio-2019)
>
> [Visual Studio 2022 Lifecycle](/lifecycle/products/visual-studio-2022)
> [Visual Studio 2022 Lifecycle](https://learn.microsoft.com/lifecycle/products/visual-studio-2022)

## Targeting and support rules

Expand Down Expand Up @@ -114,7 +115,8 @@ Major versions of the .NET SDK are typically released within a few days of a Vis
| 10.0.100 Preview 1 | 17.14 Preview 1 |
| 10.0.100 Preview 2 | 17.14 Preview 2 |
| 10.0.100 Preview 3 | 17.14 Preview 3 |
| 10.0.100 RC 2 | 17.14 |
| 10.0.100 RC 1 | 18.0.0 Insiders (11010.61)|
| 10.0.100 RC 2 | 18.0.0 Insiders (11111.16)|

## Reference

Expand Down
43 changes: 0 additions & 43 deletions docs/csharp/language-reference/compiler-messages/cs0233.md
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