dotnet/Documentation/breaking-changes/obsoleteattribute-exports-as-both-obsoleteattribute-and-deprecatedattribute-in-winmd-scenarios.md

48: ObsoleteAttribute exports as both ObsoleteAttribute and DeprecatedAttribute in WinMD scenarios

Scope

Edge

Version Introduced

4.5.1

Source Analyzer Status

Available

Change Description

When you create a Windows Metadata library (.winmd file), the ObsoleteAttribute attribute is exported as both ObsoleteAttribute and Windows.Foundation.DeprecatedAttribute.

• Quirked
• Build-time break

Recommended Action

Recompilation of existing source code that uses the ObsoleteAttribute attribute may generate warnings when consuming that code from C++/CX or JavaScript.

We do not recommend applying both ObsoleteAttribute and Windows.Foundation.DeprecatedAttribute to code in managed assemblies; it may result in build warnings.

Affected APIs

• Not detectable via API analysis

Category

Core

More information