[Breaking change]: System.DirectoryServices no longer references System.Security.Permissions

[steveharter]

Description

The System.DirectoryServices package no longer references the System.Security.Permissions package.

Version

.NET 8 Preview 3

Previous behavior

The System.DirectoryServices package referenced the System.Security.Permissions package.

New behavior

The System.DirectoryServices package does not reference the System.Security.Permissions package.

Type of breaking change

• Binary incompatible: Existing binaries may encounter a breaking change in behavior, such as failure to load or execute, and if so, require recompilation.
• Source incompatible: When recompiled using the new SDK or component or to target the new runtime, existing source code may require source changes to compile successfully.
• Behavioral change: Existing binaries may behave differently at run time.

Reason for change

This avoids a dependency on System.Drawing.Common when System.DirectoryServices is referenced which is primarily an issue for non-Windows operating systems.

The dependency to System.Drawing.Common was caused by the following package dependencies:
System.DirectoryServices ->
System.Security.Permissions ->
System.Windows.Extensions ->
System.Drawing.Common.

Recommended action

If the System.DirectoryServices package is referenced and a dependency is needed to System.Security.Permissions or any of its dependencies, which may include System.Windows.Extensions or System.Drawing.Common then ensure those packages are referenced directly or indirectly.

Feature area

Other (please put exact area in description textbox)

Affected APIs

No response

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Associated WorkItem - 153929

[ericstj]

I marked this as "source incompatible" instead of "binary incompatible" because the problem will only be observed on a rebuild when referencing a new version of the package. Existing binaries / builds will work.