- Accessibility improvements in narration, high contrast and focus control areas
- .NET Framework support for .NET Standard 2.0 and compiler features
- More secure SHA-2 support in ASP.NET and System.Messaging
- Configuration builders
- ASP.NET Execution step feature
- ASP.NET HttpCookie parsing
- Enhancements in Visual Tree for WPF applications
- Performance and reliability improvements
Compiler – Support for ReadOnlyReferences
class Type1 { // This parameter will have an attribute (in IL) of type `IsReadOnly` public void Method1(ref readonly int param1) { throw null; } // This method return type will have an attribute (in IL) of type `IsReadOnly` public ref readonly int Method2() { throw null; } }