Top runtime issues

Add an option to return finalizable versions of ArrayMemoryPoolBuffer from MemoryPool

area-System.Memory

ConfigurationManager is unusable when called from unmanaged code

area-System.Configuration

Add more IO tests around problematic filename characters

area-System.IO test enhancement up-for-grabs

Directory.CreateDirectory throwing wrong exception

area-System.IO bug os-windows tracking-external-issue

UTF32Encoding and XmlTransformation when ByteOrderMark is set to false still contains the mark on .NET Core 2

area-System.Xml bug tenet-compatibility

Binary Serializing a DataTable with a DataColumn fails with SerializationException

area-System.Runtime bug

Add a Span.TryCast extension method

api-suggestion area-System.Memory

LINQ.Expressions Power operator and BigInteger or Complex or custom

api-suggestion area-System.Linq.Expressions

Move Span.NonPortableCast to MemoryMarshal and rename to Cast

api-approved area-System.Memory easy

[Recursive resource lookup bug] on runtime 2.0.4 with NLog.Web.AspNetCore

area-System.Runtime