docs: add SdkAnalysisLevel entries for 10.0.300 and 11.0.100

[Copilot]

Summary

Updates the SdkAnalysisLevel table in docs/core/project-sdk/msbuild-props.md to document the new behaviors gated on SDK analysis level 10.0.300 and 11.0.100, as defined in SdkAnalysisLevelMinimums.cs in the NuGet.Client repo.

Changes

Four new rows added to the SdkAnalysisLevel behavior table:

10.0.300

• Multi-targeting with duplicate target frameworks via TargetFrameworkAlias — emits NU1018 error when duplicate target frameworks exist without TargetFrameworkAlias set for all frameworks.
• TargetFrameworkAlias character validation — emits NU1019 error for path separator characters (/ or \), and NU1019 warning for non-ASCII characters.

11.0.100

• MonoAndroid framework deprecation — emits NU1703 warning when a package uses the deprecated MonoAndroid framework instead of a modern .NET TFM.
• TargetFrameworkAlias non-ASCII character validation — changes NU1019 from a warning to an error for non-ASCII characters.

Source

Content sourced directly from the NuGet.Client source: SdkAnalysisLevelMinimums.cs, RestoreCommand.cs, MonoAndroidDeprecation.cs, and NuGetLogCode.cs.

Note

This article was updated with the assistance of AI (ai-assisted).

---

Internal previews

📄 File	🔗 Preview link
docs/core/project-sdk/msbuild-props.md	docs/core/project-sdk/msbuild-props

[Copilot]

Pull request overview

This PR updates the SdkAnalysisLevel behavior table in docs/core/project-sdk/msbuild-props.md to document NuGet restore behaviors introduced in SDK feature bands 10.0.300 and 11.0.100.

Changes:

• Add a 10.0.300 table entry for duplicate target framework multi-targeting behavior.
• Add 10.0.300 and 11.0.100 entries describing NU1019 character validation behavior.
• Add an 11.0.100 entry describing the MonoAndroid deprecation warning behavior.

Comments suppressed due to low confidence (1)

docs/core/project-sdk/msbuild-props.md:1520

• These entries attribute NU1019 validation to the TargetFramework property, but the described checks (path separators, non-ASCII) are for TargetFrameworkAlias values used to disambiguate duplicate target frameworks. Please rename the label/text to TargetFrameworkAlias (including the “property contains…” phrasing) so readers don’t think the SDK is validating TargetFramework/TargetFrameworks values.

| 10.0.300         | `TargetFramework` character validation | Emits [NU1019](/nuget/reference/errors-and-warnings/nu1019) error for path separator characters (`/` or `\`) in a `TargetFramework` property, and [NU1019](/nuget/reference/errors-and-warnings/nu1019) warning for non-ASCII characters. |
| 11.0.100         | MonoAndroid framework deprecation warning | Emits [NU1703](/nuget/reference/errors-and-warnings/nu1703) warning when a package uses the deprecated `MonoAndroid` framework instead of a modern .NET target framework moniker. |
| 11.0.100         | `TargetFramework` non-ASCII character validation | Changes [NU1019](/nuget/reference/errors-and-warnings/nu1019) from a warning to an error when a `TargetFramework` property contains non-ASCII characters. |