# API Difference netstandard2.1 vs net5.0 API listing follows standard diff formatting. Lines preceded by a '+' are additions and a '-' indicates removal. * [Microsoft.CSharp.RuntimeBinder](5.0_Microsoft.CSharp.RuntimeBinder.md) * [Microsoft.VisualBasic](5.0_Microsoft.VisualBasic.md) * [Microsoft.VisualBasic.CompilerServices](5.0_Microsoft.VisualBasic.CompilerServices.md) * [Microsoft.VisualBasic.FileIO](5.0_Microsoft.VisualBasic.FileIO.md) * [Microsoft.Win32.SafeHandles](5.0_Microsoft.Win32.SafeHandles.md) * [System](5.0_System.md) * [System.Buffers](5.0_System.Buffers.md) * [System.Buffers.Binary](5.0_System.Buffers.Binary.md) * [System.Collections.Concurrent](5.0_System.Collections.Concurrent.md) * [System.Collections.Generic](5.0_System.Collections.Generic.md) * [System.Collections.Immutable](5.0_System.Collections.Immutable.md) * [System.ComponentModel](5.0_System.ComponentModel.md) * [System.ComponentModel.DataAnnotations](5.0_System.ComponentModel.DataAnnotations.md) * [System.ComponentModel.DataAnnotations.Schema](5.0_System.ComponentModel.DataAnnotations.Schema.md) * [System.Data](5.0_System.Data.md) * [System.Data.Common](5.0_System.Data.Common.md) * [System.Diagnostics](5.0_System.Diagnostics.md) * [System.Diagnostics.CodeAnalysis](5.0_System.Diagnostics.CodeAnalysis.md) * [System.Drawing](5.0_System.Drawing.md) * [System.Formats.Asn1](5.0_System.Formats.Asn1.md) * [System.Globalization](5.0_System.Globalization.md) * [System.IO](5.0_System.IO.md) * [System.IO.IsolatedStorage](5.0_System.IO.IsolatedStorage.md) * [System.IO.Pipes](5.0_System.IO.Pipes.md) * [System.Linq](5.0_System.Linq.md) * [System.Net](5.0_System.Net.md) * [System.Net.Http](5.0_System.Net.Http.md) * [System.Net.Http.Json](5.0_System.Net.Http.Json.md) * [System.Net.Mail](5.0_System.Net.Mail.md) * [System.Net.NetworkInformation](5.0_System.Net.NetworkInformation.md) * [System.Net.Security](5.0_System.Net.Security.md) * [System.Net.Sockets](5.0_System.Net.Sockets.md) * [System.Net.WebSockets](5.0_System.Net.WebSockets.md) * [System.Numerics](5.0_System.Numerics.md) * [System.Reflection](5.0_System.Reflection.md) * [System.Reflection.Emit](5.0_System.Reflection.Emit.md) * [System.Reflection.Metadata](5.0_System.Reflection.Metadata.md) * [System.Reflection.Metadata.Ecma335](5.0_System.Reflection.Metadata.Ecma335.md) * [System.Reflection.PortableExecutable](5.0_System.Reflection.PortableExecutable.md) * [System.Resources](5.0_System.Resources.md) * [System.Runtime](5.0_System.Runtime.md) * [System.Runtime.CompilerServices](5.0_System.Runtime.CompilerServices.md) * [System.Runtime.ExceptionServices](5.0_System.Runtime.ExceptionServices.md) * [System.Runtime.InteropServices](5.0_System.Runtime.InteropServices.md) * [System.Runtime.Intrinsics](5.0_System.Runtime.Intrinsics.md) * [System.Runtime.Intrinsics.Arm](5.0_System.Runtime.Intrinsics.Arm.md) * [System.Runtime.Intrinsics.X86](5.0_System.Runtime.Intrinsics.X86.md) * [System.Runtime.Loader](5.0_System.Runtime.Loader.md) * [System.Runtime.Remoting](5.0_System.Runtime.Remoting.md) * [System.Runtime.Versioning](5.0_System.Runtime.Versioning.md) * [System.Security](5.0_System.Security.md) * [System.Security.Authentication](5.0_System.Security.Authentication.md) * [System.Security.Cryptography](5.0_System.Security.Cryptography.md) * [System.Security.Cryptography.X509Certificates](5.0_System.Security.Cryptography.X509Certificates.md) * [System.Security.Permissions](5.0_System.Security.Permissions.md) * [System.Text](5.0_System.Text.md) * [System.Text.Encodings.Web](5.0_System.Text.Encodings.Web.md) * [System.Text.Json](5.0_System.Text.Json.md) * [System.Text.Json.Serialization](5.0_System.Text.Json.Serialization.md) * [System.Text.RegularExpressions](5.0_System.Text.RegularExpressions.md) * [System.Text.Unicode](5.0_System.Text.Unicode.md) * [System.Threading](5.0_System.Threading.md) * [System.Threading.Channels](5.0_System.Threading.Channels.md) * [System.Threading.Tasks](5.0_System.Threading.Tasks.md) * [System.Threading.Tasks.Dataflow](5.0_System.Threading.Tasks.Dataflow.md) * [System.Windows.Markup](5.0_System.Windows.Markup.md) * [System.Xml](5.0_System.Xml.md)