code analysis updates for .net 10 ga (#49662)

Author: gewarren

docs/fundamentals/code-analysis/overview.md

@@ -2,7 +2,7 @@
 title: Code analysis in .NET
 titleSuffix: ""
 description: Learn about source code analysis in the .NET SDK.
-ms.date: 09/30/2025
+ms.date: 11/05/2025
 ms.topic: overview
 ms.custom: updateeachrelease
 helpviewer_keywords:
@@ -24,6 +24,41 @@ If rule violations are found by an analyzer, they're reported as a suggestion, w
 
 ### Enabled rules
 
+# [.NET 10](#tab/net-10)
+
+The following rules are enabled, by default, as errors or warnings in .NET 10. Additional rules are enabled as suggestions.
+
+| Diagnostic ID                     | Category         | Severity | Version added | Description                     |
+|-----------------------------------|------------------|----------|---------------|---------------------------------|
+| [CA1416](quality-rules/ca1416.md) | Interoperability | Warning  | .NET 5        | Validate platform compatibility |
+| [CA1417](quality-rules/ca1417.md) | Interoperability | Warning  | .NET 5        | Do not use `OutAttribute` on string parameters for P/Invokes |
+| [CA1418](quality-rules/ca1418.md) | Interoperability | Warning | .NET 6 | Use valid platform string |
+| [CA1420](quality-rules/ca1420.md) | Interoperability | Warning | .NET 7 | Using features that require runtime marshalling when it's disabled will result in run-time exceptions |
+| [CA1422](quality-rules/ca1422.md) | Interoperability | Warning | .NET 7 | Validate platform compatibility |
+| [CA1831](quality-rules/ca1831.md) | Performance | Warning | .NET 5 | Use `AsSpan` instead of range-based indexers for string when appropriate |
+| [CA1856](quality-rules/ca1856.md) | Performance | Error | .NET 8 | Incorrect usage of `ConstantExpected` attribute |
+| [CA1857](quality-rules/ca1857.md) | Performance | Warning | .NET 8 | A constant is expected for the parameter |
+| [CA2013](quality-rules/ca2013.md) | Reliability | Warning | .NET 5 | Do not use `ReferenceEquals` with value types |
+| [CA2014](quality-rules/ca2014.md) | Reliability | Warning | .NET 5 | Do not use `stackalloc` in loops |
+| [CA2015](quality-rules/ca2015.md) | Reliability | Warning | .NET 5 | Do not define finalizers for types derived from <xref:System.Buffers.MemoryManager%601> |
+| [CA2017](quality-rules/ca2017.md) | Reliability | Warning | .NET 6 | Parameter count mismatch |
+| [CA2018](quality-rules/ca2018.md) | Reliability | Warning | .NET 6 | The `count` argument to `Buffer.BlockCopy` should specify the number of bytes to copy |
+| [CA2021](quality-rules/ca2021.md) | Reliability | Warning | .NET 8 | Do not call `Enumerable.Cast<T>` or `Enumerable.OfType<T>` with incompatible types |
+| [CA2022](quality-rules/ca2022.md) | Reliability | Warning | .NET 9 | Avoid inexact read with `Stream.Read` |
+| [CA2023](quality-rules/ca2023.md) | Reliability | Warning | .NET 10 | Invalid braces in message template |
+| [CA2200](quality-rules/ca2200.md) | Usage | Warning | .NET 5 | Rethrow to preserve stack details |
+| [CA2247](quality-rules/ca2247.md) | Usage | Warning | .NET 5 | Argument passed to `TaskCompletionSource` constructor should be <xref:System.Threading.Tasks.TaskCreationOptions> enum instead of <xref:System.Threading.Tasks.TaskContinuationOptions> |
+| [CA2252](quality-rules/ca2252.md) | Usage | Error | .NET 6 | Opt in to preview features |
+| [CA2255](quality-rules/ca2255.md) | Usage | Warning | .NET 6 | The `ModuleInitializer` attribute should not be used in libraries |
+| [CA2256](quality-rules/ca2256.md) | Usage | Warning | .NET 6 | All members declared in parent interfaces must have an implementation in a `DynamicInterfaceCastableImplementation`-attributed interface |
+| [CA2257](quality-rules/ca2257.md) | Usage | Warning | .NET 6 | Members defined on an interface with the `DynamicInterfaceCastableImplementationAttribute` should be `static` |
+| [CA2258](quality-rules/ca2258.md) | Usage | Warning | .NET 6 | Providing a `DynamicInterfaceCastableImplementation` interface in Visual Basic is unsupported |
+| [CA2259](quality-rules/ca2259.md) | Usage | Warning | .NET 7 | `ThreadStatic` only affects static fields |
+| [CA2260](quality-rules/ca2260.md) | Usage | Warning | .NET 7 | Use correct type parameter |
+| [CA2261](quality-rules/ca2261.md) | Usage | Warning | .NET 8 | Do not use `ConfigureAwaitOptions.SuppressThrowing` with `Task<TResult>` |
+| [CA2264](quality-rules/ca2264.md) | Usage | Warning | .NET 9 | Do not pass a non-nullable value to `ArgumentNullException.ThrowIfNull` |
+| [CA2265](quality-rules/ca2265.md) | Usage | Warning | .NET 9 | Do not compare `Span<T>` to `null` or `default` |
+
 # [.NET 9](#tab/net-9)
 
 The following rules are enabled, by default, as errors or warnings in .NET 9. Additional rules are enabled as suggestions.
@@ -89,38 +124,11 @@ The following rules are enabled, by default, as errors or warnings in .NET 8. Ad
 | [CA2260](quality-rules/ca2260.md) | Usage | Warning | .NET 7 | Use correct type parameter |
 | [CA2261](quality-rules/ca2261.md) | Usage | Warning | .NET 8 | Do not use `ConfigureAwaitOptions.SuppressThrowing` with `Task<TResult>` |
 
-# [.NET 7](#tab/net-7)
-
-The following rules are enabled, by default, as errors or warnings in .NET 7. Additional rules are enabled as suggestions.
-
-| Diagnostic ID | Category | Severity | Description |
-| - | - | - | - |
-| [CA1416](quality-rules/ca1416.md) | Interoperability | Warning | Validate platform compatibility |
-| [CA1417](quality-rules/ca1417.md) | Interoperability | Warning | Do not use `OutAttribute` on string parameters for P/Invokes |
-| [CA1418](quality-rules/ca1418.md) | Interoperability | Warning | Use valid platform string |
-| [CA1420](quality-rules/ca1420.md) | Interoperability | Warning | Using features that require runtime marshalling when it's disabled will result in run-time exceptions |
-| [CA1422](quality-rules/ca1422.md) | Interoperability | Warning | Validate platform compatibility |
-| [CA1831](quality-rules/ca1831.md) | Performance | Warning | Use `AsSpan` instead of range-based indexers for string when appropriate |
-| [CA2013](quality-rules/ca2013.md) | Reliability | Warning | Do not use `ReferenceEquals` with value types |
-| [CA2014](quality-rules/ca2014.md) | Reliability | Warning | Do not use `stackalloc` in loops |
-| [CA2015](quality-rules/ca2015.md) | Reliability | Warning | Do not define finalizers for types derived from <xref:System.Buffers.MemoryManager%601> |
-| [CA2017](quality-rules/ca2017.md) | Reliability | Warning | Parameter count mismatch |
-| [CA2018](quality-rules/ca2018.md) | Reliability | Warning | The `count` argument to `Buffer.BlockCopy` should specify the number of bytes to copy |
-| [CA2200](quality-rules/ca2200.md) | Usage | Warning | Rethrow to preserve stack details |
-| [CA2247](quality-rules/ca2247.md) | Usage | Warning | Argument passed to `TaskCompletionSource` constructor should be <xref:System.Threading.Tasks.TaskCreationOptions> enum instead of <xref:System.Threading.Tasks.TaskContinuationOptions> |
-| [CA2252](quality-rules/ca2252.md) | Usage | Error | Opt in to preview features |
-| [CA2255](quality-rules/ca2255.md) | Usage | Warning | The `ModuleInitializer` attribute should not be used in libraries |
-| [CA2256](quality-rules/ca2256.md) | Usage | Warning | All members declared in parent interfaces must have an implementation in a `DynamicInterfaceCastableImplementation`-attributed interface |
-| [CA2257](quality-rules/ca2257.md) | Usage | Warning | Members defined on an interface with the `DynamicInterfaceCastableImplementationAttribute` should be `static` |
-| [CA2258](quality-rules/ca2258.md) | Usage | Warning | Providing a `DynamicInterfaceCastableImplementation` interface in Visual Basic is unsupported |
-| [CA2259](quality-rules/ca2259.md) | Usage | Warning | `ThreadStatic` only affects static fields |
-| [CA2260](quality-rules/ca2260.md) | Usage | Warning | Use correct type parameter |
-
 ---
 
 You can change the severity of these rules to disable them or elevate them to errors. You can also [enable more rules](#enable-additional-rules).
 
-- For a list of rules that are included with each .NET SDK version, see [Analyzer releases](https://github.com/dotnet/roslyn-analyzers/blob/main/src/NetAnalyzers/Core/AnalyzerReleases.Shipped.md).
+- For a list of rules that are included with each .NET SDK version, see [Analyzer releases](https://github.com/dotnet/sdk/blob/main/src/Microsoft.CodeAnalysis.NetAnalyzers/src/Microsoft.CodeAnalysis.NetAnalyzers/AnalyzerReleases.Shipped.md).
 - For a list of all the code quality rules, see [Code quality rules](quality-rules/index.md).
 
 ### Enable additional rules

docs/fundamentals/code-analysis/quality-rules/ca1000.md

@@ -22,7 +22,7 @@ dev_langs:
 | **Title**                           | Do not declare static members on generic types |
 | **Category**                        | [Design](design-warnings.md)                   |
 | **Fix is breaking or non-breaking** | Breaking                                       |
-| **Enabled by default in .NET 9**    | No                                             |
+| **Enabled by default in .NET 10**    | No                                             |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1001.md

@@ -22,7 +22,7 @@ dev_langs:
 | **Title**                           | Types that own disposable fields should be disposable                                                                            |
 | **Category**                        | [Design](design-warnings.md)                                                                                                     |
 | **Fix is breaking or non-breaking** | Non-breaking - If the type is not visible outside the assembly.<br/><br/>Breaking - If the type is visible outside the assembly. |
-| **Enabled by default in .NET 9**    | No                                                                                                                               |
+| **Enabled by default in .NET 10**    | No                                                                                                                               |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1002.md

@@ -21,7 +21,7 @@ dev_langs:
 | **Title**                           | Do not expose generic lists  |
 | **Category**                        | [Design](design-warnings.md) |
 | **Fix is breaking or non-breaking** | Breaking                     |
-| **Enabled by default in .NET 9**    | No                           |
+| **Enabled by default in .NET 10**    | No                           |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1003.md

@@ -22,7 +22,7 @@ dev_langs:
 | **Title**                           | Use generic event handler instances |
 | **Category**                        | [Design](design-warnings.md)        |
 | **Fix is breaking or non-breaking** | Breaking                            |
-| **Enabled by default in .NET 9**    | No                                  |
+| **Enabled by default in .NET 10**    | No                                  |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1005.md

@@ -21,7 +21,7 @@ dev_langs:
 | **Title**                           | Avoid excessive parameters on generic types |
 | **Category**                        | [Design](design-warnings.md)                |
 | **Fix is breaking or non-breaking** | Breaking                                    |
-| **Enabled by default in .NET 9**    | No                                          |
+| **Enabled by default in .NET 10**    | No                                          |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1008.md

@@ -22,7 +22,7 @@ dev_langs:
 | **Title**    | Enums should have zero value |
 | **Category** | [Design](design-warnings.md) |
 | **Fix is breaking or non-breaking** | Non-breaking - When you're prompted to add a `None` value to a non-flag enumeration. Breaking - When you're prompted to rename or remove any enumeration values. |
-| **Enabled by default in .NET 9** | No       |
+| **Enabled by default in .NET 10** | No       |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1010.md

@@ -21,7 +21,7 @@ ms.author: gewarren
 | **Title**                           | Collections should implement generic interface |
 | **Category**                        | [Design](design-warnings.md)                   |
 | **Fix is breaking or non-breaking** | Non-breaking                                   |
-| **Enabled by default in .NET 9**    | No                                             |
+| **Enabled by default in .NET 10**    | No                                             |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1012.md

@@ -21,7 +21,7 @@ dev_langs:
 | **Title**                           | Abstract types should not have public constructors |
 | **Category**                        | [Design](design-warnings.md)                       |
 | **Fix is breaking or non-breaking** | Non-breaking                                       |
-| **Enabled by default in .NET 9**    | No                                                 |
+| **Enabled by default in .NET 10**    | No                                                 |
 
 ## Cause
 

docs/fundamentals/code-analysis/quality-rules/ca1014.md

@@ -22,7 +22,7 @@ dev_langs:
 | **Title**                           | Mark assemblies with CLSCompliantAttribute |
 | **Category**                        | [Design](design-warnings.md)               |
 | **Fix is breaking or non-breaking** | Non-breaking                               |
-| **Enabled by default in .NET 9**    | No                                         |
+| **Enabled by default in .NET 10**    | No                                         |
 
 ## Cause